biomethanation of fleshings and sludge from

Transcription

UNITED NATIONS INDUSTRIAL DEVELOPMENT ORGANIZATION
September 2001
US/RAS/92/120
Regional Programme for Pollution control in the Tanning Industry
in South-East Asia
BIOMETHANATION OF FLESHINGS AND SLUDGE FROM
TANNERY EFFLUENT TREATMENT PLANTS
Prepared by
Solomon Sampathkumar
National Expert
Project Manager
Jakov Buljan
Agro-industries and Sectoral Support Branch
____________________________________________________________________
This paper has not been edited.
The views presented are those of the author and are not necessarily shared by UNIDO.
References herein to any specific commercial product, process, or manufacturer do not necessarily constitute or
imply its endorsement or recommendation by UNIDO.
TABLE OF CONTENTS
LIST OF SYMBOLS & ABBREVIATIONS .......................................................................iii
EXECUTIVE SUMMARY .................................................................................................... iv
1. BACKGROUND .................................................................................................................. 1
2. PRINCIPLE OF BIOMETHANATION ........................................................................... 3
3. OBJECTIVES ...................................................................................................................... 3
4. IMPLEMENTATION ARRANGEMENTS ...................................................................... 4
5. CHRONOLOGY OF EVENTS .......................................................................................... 4
6. BASIC DETAILS OF THE PLANT .................................................................................. 5
6.1 Location ........................................................................................................................... 5
6.2 Key design features .......................................................................................................... 6
6.3 Equipment and instruments installed ............................................................................... 6
6.4 Capital cost ...................................................................................................................... 7
6.5 Process description .......................................................................................................... 7
6.5 Process of commissioning ............................................................................................... 9
7. OPERATION OF THE PLANT: 01 JAN 2000 – 30 JUNE 2001 ................................. 10
7.1 Operational controls - measurement and monitoring of different parameters .............. 10
7.2 Brief details of operation ............................................................................................... 10
8. PROBLEMS ENCOUNTERED ....................................................................................... 14
8.1 Problems relating to grinder .......................................................................................... 14
8.2 Availability of fleshings................................................................................................. 15
8.3 Inconsistency in the quality of fleshings........................................................................ 15
8.4 Digester overflow and frothing problem ....................................................................... 15
9. PERFORMANCE OF THE PLANT ............................................................................... 16
10. LESSONS LEARNT ........................................................................................................ 17
11. FUTURE ........................................................................................................................... 17
ANNEXURES
1.
2.
3.
4.
5.
6.
MoU between MNES, CLRI, RePO & CETP-Vishtec (not enclosed)
DPR prepared by Mr. M. Aloy & Mr. S.D. Badrinath (not enclosed)
Location map
Layout
Flow chart
Operational data: March 2000 – June 2001
i
Project Team
Ministry of Non-conventional Energy Sources, Govt. of India
1. N.P. Singh, Advisor
2. A.K. Dhusa, Director
3. V.K. Jain, Principle Scientific Officer
Central Leather Research Institute, Chennai
4.
5.
6.
7.
T. Ramasami, Director
R.A. Ramanujam, Senior Scientist
P. Shanmugam, Scientist
R. Ganesh, Project Assistant
Enkem Engineers Pvt. Ltd., Chennai
8. P. Subramani, Director
9. I. Roy, Engineer
CETP, Melvisharam
10. J. Irshad, Plant Chemist
United Nations Industrial Development Organization
11. Jakov Buljan, Project Manager
12. A. Sahasranaman, Programme Coordinator
13. Michel Aloy, Consultant, CTC, Lyon
14. S.D. Badrinath, Consultant, Hyderabad, India
15. Solomon Sampathkumar, National Expert
16. M. Viswanathan, National Expert
ii
LIST OF SYMBOLS & ABBREVIATIONS
CETP
CLRI
CO2
COD
d
GoI
H2S
INR
kg
kWh
LTM
MNES
m3
NB
RePO
rpm
t
t/d
TS
UNIDO
VFA
VS
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
Common Effluent Treatment Plant
Central Leather Research Institute
Carbon dioxide
Chemical oxygen demand
Day
Government of India
Hydrogen Sulphide
Indian Rupees
Kilogram
Kilo watt-hour
Leather Technology Mission
Ministry of Non-conventional Energy Sources
Cubic meter
Nominal bore
Regional Programme Office of UNIDO at Chennai
Revolutions per minute
Tonne
Tonne(s) per day
Total solids
United Nations Industrial Development Organization
Volatile fatty acids
Volatile solids
(Rate of exchange: 1 US $ = Rs. 46.80)
iii
EXECUTIVE SUMMARY
With increasing pressure from the pollution control authorities, tanners in many countries of
South East Asia region are faced with the urgent task of utilization or safe disposal of solid
wastes from tanneries, particularly fleshings. Likewise, sludge generated by tannery effluent
treatment plants has to be either put to use or safely disposed. These two issues were
highlighted by the industry and government representatives of countries participating in the
Regional programme at the time of the first coordinating and planning meeting held at
Chennai, India in March 1996.
Meantime the Ministry of Non-conventional Energy Sources (MNES) of the Government of
India had engaged Central Leather Research Institute (CLRI), Chennai, India to identify
potential non-conventional sources of energy in the leather industry. The idea of
biomethanation of sludge and fleshings was mooted by CLRI. However this did not make
much progress due to lack of access to relevant technology. At this stage UNIDO’s Regional
programme revived the idea by suggesting that MNES might consider the technology adopted
by a French tannery. Further discussion among MNES, CLRI and UNIDO’s RePO resulted in
finalizing a project for a semi-industrial scale biomethanation plant of 5 t/d capacity to be put
up jointly by MNES, CLRI, UNIDO and CETP, Vishtec, Melvisharam, Tamil Nadu, India.
On the basis of a project report prepared jointly by Mr. Michel Aloy, CTC, Lyon, France (an
international consultant of UNIDO) and Mr. S.D. Badrinath, a national consultant, the plant
was constructed and commissioned by Enkem Engineers, a Chennai-based subcontractor.
CLRI was given the responsibility for implementation and day-to-day management of the
project and optimization of process parameters to achieve the envisaged gas yield and
electrical energy. The plant has been operated regularly since its trial runs in December 1999.
The personnel of the CETP have been trained in the operation and maintenance of the plant.
Operational data for the period March 2000 to June 2001 is provided in the report (Annex 6).
According to the project report, 5 tonnes of input to the plant every day, comprising not less
than 3 tonnes of fleshings and the remainder of sludge, of the characteristics specified in the
report, providing about 585 kg of volatile solids, would yield 316 m3 of biogas and in turn
700 kWh of electrical energy per day.
The performance of the plant has established the feasibility of treating fleshings and sludge in
anaerobic digestors to produce biogas, which after scrubbing of the H2S, can be used as fuel
in a dual-fuel engine to generate electricity. However the gas generation until now has been
much lower than the volume envisaged in the project report. The report contains details of the
characteristics of fleshings and sludge charged to the digestors, volume of gas generated visà-vis projection and the many valuable lessons learnt. Details of the problems encountered –
both process-related and mechanical – have been narrated. Being virtually the only
operational plant of its kind in the world at present, constant efforts are underway to
overcome the many process and technical problems and reach the optimum level of gas
generation.
The performance of the plant, until now, has confirmed the following:
•
•
•
The methane content of the gas generated is 60 – 70%.
The gas yield corresponds to the volatile solids destroyed in the digester.
The rate of volatile solids destroyed is in the range of 55 – 65%.
iv
•
•
The scrubber installed is capable of reducing H2S level in the gas from 1% to less
than 0.1%.
The gas generated, after H2S removal, has been successfully used to generate
electricity in a dual fuel engine.
Based on the results obtained until now it can be stated that the gas generated by
biomethanation of fleshings and sludge can be utilized to generate electrical energy, thus
offering an avenue for disposal of these solid wastes. Further data on the performance of the
plant will be collected by CLRI over the next few months before the design features of an
upscaled plant can be finalized.
v
1. BACKGROUND
1.1. Raw trimmings and green/limed fleshings, which constitute bulk of the solid wastes
generated in a tannery, are biodegradable. It has often been seen that in many tannery
clusters in the developing countries of South East Asia such wastes are dumped
haphazardly in the vacant areas around tanneries. Besides creating an unseemly sight,
these putrefy, generate foul odour and pose a serious health problem. Though
manufacturers of animal glue or animal feed protein or dog chew take away some
quantity of such wastes, unacceptable modes of disposal of a sizeable quantity of such
wastes in the region are not uncommon. Finding alternative, commercially attractive,
options for utilization of these is an urgent task facing the tanning industry and the
municipal authorities of the region.
1.2. Trimmings of raw hides and skins account for about 8 to 10% and fleshings, about 25 to
30% on the weight of raw stock. The characteristics of fleshings vary according to the
origin of the raw material. The typical characteristics of fleshings resulting from Indian
raw material at three locations may be seen in Table 1:
Table 1: Characteristics of limed fleshings collected from tanneries in Vellore district,
Tamil Nadu, India
#
Parameter
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
pH
Moisture
Ash
Volatile solids
COD total
Calcium as Ca (total)
Sulphate as SO4 (total)
Sulphide as S
Phosphorus as P
Ammonia Nitrogen as N
TKN
Oil & grease
Ranipet
Buffalo
Cow
12.36
90.53
0.183
0.817
0.970
0.127
0.00212
0.00119
0.00021
0.00272
0.118
0.058
12.11
82.34
0.474
0.526
0.765
0.077
0.00539
0.00269
0.00186
0.00280
0.083
0.091
Vaniyambadi
Sheep skin
11.88
89.94
0.229
0.771
1.084
0.116
0.00147
0.00041
0.00145
0.00233
0.090
0.633
Melvisharam
Buff
Cow calf
calf
12.25
12.06
90.41
81.95
0.349
0.225
0.651
0.775
0.949
0.195
0.236
0.078
0.00045
0.00261
0.00011
0.00199
0.00015
0.00019
0.00228
0.00451
0.106
0.109
0.130
0.228
Note: All values except pH and moisture are expressed in w/w on dry weight basis. Moisture content is expressed in percentage.
Source: Detailed Project Report on “High rate bio-methanation of tannery fleshings and sludge” dated November 1997.
One of the potential options for utilization of the volatile solids in the fleshings is to
convert these into biogas, which can be further used for generation of electricity.
1.3. Another solid waste, emanating from the effluent treatment plants, is the primary sludge.
About 40% of this is organic matter, appropriate for conversion into biogas. A
substantial quantity of sludge from effluent treatment plants is currently disposed in
either safe landfills or dumped in the vacant lands, again causing an environmental
hazard. Appropriate options for utilization of sludge have to be explored to help the
industry of the region. The general characteristics of sludge from three common effluent
treatment plants in Tamilnadu, India may be seen in Table 2:
1
Table 2: Characteristics of sludge from common effluent treatment plants in Vellore
District, Tamil Nadu, India.
#
Parameter
mg/l
CETP
CETP
CETP
Average
Vaniyambadi Melvisharam Ranipet
1. pH
7.72
8.8
7.93
7.7 – 8.8
2. Total solids
60574
24762
49820
45052.00
3. Total ash
36861
13462
32276
27533.00
4. Total volatile solids
23713
11300
17544
17519.00
5. COD total
30682
22334
13762
22259.33
6. COD soluble
3271
2419
852
2180.67
7. Calcium as Ca
3965
910
1125
2000.00
28. Sulphate as SO4
111
502
1207
606.67
9. Total Sulphide as S
405
372
335
370.67
10. Total Phosphorus as P
125
2.65
2.21
43.29
11. Ammonia Nitrogen
530
420
340
430.00
12. TKN
1758
1400
786
1314.67
13. Sodium as Na
5210
2530
4120
3953.33
14. Total Chromium as Cr
443
74
434
317.00
15. Chloride as Cl
14000
5800
10000
9933.33
Note: All values except pH are expressed in mg/l, for primary liquid sludge
Source: Detailed Project Report on “High rate bio-methanation of tannery fleshings and sludge” dated November 1997.
1.4. The quantity of limed fleshings generated in tanneries in Tamil Nadu is given in Table 3.
Table 3: Quantity of limed fleshings generated in the tanneries in Tamil Nadu
#
1.
Waste
Limed fleshings
Quantity generated in kg/d
Wet weight
Dry matter
140,000
18,000
1.5. Under the regional programme of UNIDO, these two issues were specifically
highlighted by the participating countries at the first coordination and planning meeting
held in Chennai, India in March 1996 and viable solutions were sought.
1.6. Meantime, the Ministry of Non-conventional Energy Sources (MNES), Government of
India had engaged Central Leather Research Institute (CLRI), Chennai to identify
potential options for generation of energy from non-conventional sources in the tanning
industry. The idea of generating biogas and electricity from fleshings and sludge was
mooted by CLRI. However, in the absence of process technology, this idea did not make
any headway. At this stage UNIDO’s RePO, in consultation with its international expert,
Mr. Michel Aloy of CTC France, suggested to CLRI and MNES that the technology
adopted by a French tannery in this regard could be looked at. Following extensive
discussions among MNES, CLRI and UNIDO’s RePO a memorandum of understanding
was entered among MNES, CLRI, UNIDO’s RePO and CETP- Vishtec, Melvisharam,
India for putting up a semi industrial scale plant of 5 t/d capacity. MNES, in cooperation
with RePO, UNIDO, Chennai, engaged Mr. Michel Aloy of CTC France and Mr. S.D.
Badrinath, a national consultant to prepare a project report for a 5 t/d biomethanation
plant, the inputs consisting of not less than 3 t/d of fleshings and the remainder of
sludge. The project report was considered by MNES in December 1999 and approved.
CLRI was engaged by MNES to implement the project, oversee its day-to-day
2
management and optimization of various parameters. UNIDO’s RePO agreed to provide
technical assistance and participate with limited financial contribution.
2. PRINCIPLE OF BIOMETHANATION
Anaerobic or methane fermentation is brought about by populations of complex bacteria.
Substances such as municipal sewerage, vegetable wastes and industrial wastes emanating
from sugar mills, slaughterhouses, etc. contain substantial quantity of organic matter and
therefore yield themselves to biomethanation.
The various forms of degradation of complex organic matter in the anaerobic process go
through three distinct phases, namely,
-
Hydrolysis and acidogenesis phase
Acetogenesis phase
Methanogenesis phase
The first phase is performed by a wide variety of bacterial species and results in a mixture of
volatile fatty acids, neutral compounds such as ethanol and gaseous products such as CO2 and
hydrogen.
The acetogenesis phase refers to acetate production and is brought about by bacteria, which
produce hydrogen. Thus this phase is sensitive to the presence of hydrogen.
Methane-producing microorganisms bring about the methanogenesis phase. Two general
methods of methanogenesis are identifiable. In the first, hydrogen and carbon dioxide form
water and methane. In the second, acetate is broken down into CO2 and methane (CH4). It is
the second method, which produces about 70% methane.
The composition of gas generated depends on the composition of the substrate and conditions
of operation. Gas production is the simplest criterion to measure the quality of digestion. It
depends on two main factors, namely, temperature and retention time.
3. OBJECTIVES
The objectives of this initiative are:
-
To evaluate the technology for generation of bio gas from wet limed fleshings and
primary sludge from a tannery effluent treatment plant in conditions prevailing in the
developing countries of South East Asia;
-
To evaluate the quality and volume of gas produced with reference to the raw material
fed and to assess the quantum of electrical power generated;
-
To obtain relevant data for finalizing the design features for up scaling the plant.
3
4. IMPLEMENTATION ARRANGEMENTS
One of the main objectives of the Ministry of Non-conventional Energy Sources (MNES) of
the Government of India is to identify potential non-conventional energy sources. From its
own point of view, the Ministry considered tannery wastes as one such source. Their interest
in taking up a project of this nature stemmed from this objective. MNES is the major
stakeholder in the project.
Tanners of South East Asian region have been faced with the problem of safe disposal or
proper utilization of both these wastes – fleshings and sludge. With increasing pressure from
the pollution control authorities in many countries of the region, they had to find an urgent
solution. Accordingly, they approached UNIDO Regional Programme for assistance in this
regard. The focus of tanners is to find a cost-effective mode of utilization or safe disposal of
these wastes.
The Central Leather Research Institute (CLRI), Chennai, India, had been engaged by the
MNES for identifying and implementing projects utilizing tannery wastes for generation of
electricity.
Against this background, MNES, CLRI and UNIDO joined together to undertake the project
in cooperation with the Common Effluent Treatment Plant at Melvisharam. Pursuant to this
convergence of interests, the following actions were taken:

A MOU was signed between Ministry of Non-conventional Energy Sources, Government
of India, Leather Technology Mission of Central Leather Research Institute, Chennai,
RePO, UNIDO, Chennai and the potential beneficiary in August 1997 (Annex 1).

A cost sharing arrangement was agreed upon – MNES contributing 60% of the cost of
project, CLRI - LTM (17.5%), UNIDO (17.5%) and the beneficiary (5%).

An international consultant, in cooperation with a national consultant, prepared a project
report. MNES & UNIDO’s Regional Programme had commissioned this project report.
The international expert presented the report to all signatories to the MoU in December
1997 (Annex 2).

Detailed engineering, construction, erection and commissioning of the plant was done by
Enkem Engineers, Chennai, an Indian subcontractor, selected on the basis of an open
tender, with regular technical guidance of the international consultant. CLRI assumed the
responsibility for day-to-day management of the project while UNIDO’s Regional
Programme was involved in the committee constituted to oversee and monitor the project
implementation and later its operation and maintenance.
5. CHRONOLOGY OF EVENTS
Details of dates by which important benchmarks were reached in the implementation of the
project are given below:
4
#
1.
2.
Bench mark activity
Signing of MoU between MNES, CLRI, UNIDO and beneficiary
Submission of Detailed Project Report by the international expert
to MNES
Selection of Turnkey contractor for preparation of detailed
engineering drawings and implementation of the project.
Completion of civil works.
Erection and commissioning of fleshing grinder
Completion of fabrication and installation of structures
Painting, hydraulic pressure testing of pipelines, testing of pumps
Completion and installation of instruments, laying of pipelines,
erection of pumps, etc.
Installation of automation system
Erection of Dual Fuel generator set
Trial run & commissioning of the plant except dual fuel engine,
boost up blower and H2S scrubber
Trial run and testing of dual fuel engine and boost up blower
Operation and maintenance of the biomethanation plant by the
turnkey contractor and evaluation of performance of
biomethanation plant
Civil works, erection, testing of H2S scrubber unit
Commissioning of H2S scrubber unit and the generator engine in
dual fuel mode
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
Date
August 1997
December 1997
October 1998
July 1999
September 1999
October 1999
October 1999
November 1999
November 1999
November 1999
December 1999
January 2000
January 2000
March 2000
March 2000
6. BASIC DETAILS OF THE PLANT
6.1 Location
The plant is located in the CETP-Vishtec at Melvisharam in Vellore District, Tamil Nadu,
India. Melvisharam, which is 125 km from Chennai, is an important tannery cluster. The
location map and layout of the plant may be seen at annex 3 & 4. The tanneries in
Melvisharam mainly process cattle hides. The tanneries of this cluster have come together
and formed a company, Visharam Tanners Enviro Control Company Ltd. (Vishtec, in short)
for the collection and treatment of effluent discharged by them. Though this CETP has been
designed to treat 3400 m3/d, the average volume of effluent received in the plant for treatment
at present is less than 1000 m3/d. The CETP has a laboratory where routine wastewater
analyses are done. Apart from this pilot plant for the biomethanation of fleshings and primary
sludge, the CETP has been assisted under UNIDO’s regional programme in the following
areas:
-
Construction of a model safe landfill
Installation of a pilot reed bed system
Composting of sludge
Automatic monitoring of some aspects of the treatment process of the CETP
5
A view of the Biomethanation Plant at Melvisharam, Tamil Nadu, India
6.2 Key design features
The biomethanation plant can take in a maximum loading of 5 t/d. The volume of each of the
two digestors connected in series is 65 m3. At a loading rate of 5 t/d, the designed retention
time of the material in the digestors is 26 days.
The key design parameters are as under:
Maximum loading rate
Total solids / day
Total VS/day
Expected biogas production
Methane production
Electrical energy generation
=
=
=
=
=
=
5 t/d
700 kg/d
585 kg/d
316 m3/d
65-70% of biogas produced
700 kWh/d
6.3 Equipment and instruments installed
Except the meat mincer (fleshing grinder), which was imported from Denmark, all other
equipment and instruments were procured or fabricated locally by the subcontractor. Details
of equipment and instruments installed in the plant are given in Table 4 and 5.
Table 4: Machinery and equipment installed at the plant
#
1.
2.
3.
4.
Qty. – Nos
1
1
1
1
Make / Supplier
Wolfking, Denmark
Enkem
Enkem
Kishore
5.
6.
7.
Description
Fleshing grinder 1000 kg/h, 30 kW motor
Agitator 100 rpm, 5.5 kW motor
Mixing tank, 10 m3
Submersible pump, 10 m3/h centrifugal, non
clog type
Digestor feeding pump, 15 m3/h screw
Scum breaking pump, 320 m3/h centrifugal
H2S scrubber unit, 15-25 m3/h
1
4
1
8.
9.
10.
Digestor unit, 65 m3
Gas holder 108 m3
Dual Fuel Engine, 65 kVA
2
1
1
Kishore
PD pumps
Indian Institute of
Science, Bangalore
Enkem
Enkem
Greaves
6
11.
12.
13.
14.
15.
16.
17.
18.
19.
Air compressor 9.1 m3/h at 7 kg/cm2
Dryer of air compressor 9.1 m3 at 7 kg/cm2
Purge pot
Digestor feed / drain tank, 1 m3
Flame arrestor, 100 NB
Flame arrestor, 80 NB
Gas flare, 25 m3/h
Breather valve 100 NB
Pressure release valve 80 NB
1
1
1
2
3
2
1
3
4
Elgi
Thermal Engineering
Enkem
Enkem
Rank controls
Rank controls
Enkem
Rank controls
Micon
Table 5: Instruments installed at the plant
#
1.
2.
3.
4.
5.
Description
Temperature sensor - Pt - 100 type - Range 0 - 1000C
Transmitter model - 244 EH-E5-X1 Indicator model
– CUTEIND – ST
Instrumentation panel
Portable pH meter - Model pH 330 - with technical
buffer solutions & integrated temperature sensor
ORP meter - Dust and water proof pocket pH/mV
meter with Redox combined electrode
Gas flow meter - Orifice type with DP transmitter
and indicator & totaliser - 10 - 25 m3/hr
DP transmitter model -151DRF22B1
Indicator & totaliser model - SMART TOT ∑
QtyNos.
Make/Supplier
4
Rosemount
1
1
ARCEE Automatic
WTW
1
WTW
1
BALIGA (Orifice)
ROSE MOUNT
(Transmitter)
MCIH (Indicator)
Other equipment installed include: Gate valves, ball valves, needle valves, non return valves,
gas valves, limit switches, etc.
6.4 Capital cost
The capital cost of the project is INR 15.34 million as per details below:
Civil works:
Mechanical:
Electrical works:
Others:
Total:
INR
750,000
INR 12,235,000
INR
530,000
INR 1,820,000
INR 15,335,000
6.5 Process description
A flow chart of the process is enclosed at Annex 5.
Fleshings brought from tanneries is stored on a concrete platform and aired off for a
minimum duration of 24 hours to oxidise residual sulphide. Then it is taken to the mincer for
grinding. The mincer is fitted with two sets of hole plates and knives. Fleshings are cut to the
size of 6 mm in the grinder and charged into the preparation tank.
7
Fleshings received at the plant from tanneries await grinding
The
preparation
tank is fed with
primary sludge (about 4% solids) obtained directly from the treatment plant. A mixer keeps
the solids in suspension. The moisture content of the mixture of minced fleshings and sludge
is 85-90%.
The entire operation of the plant is fully automated with a microprocessor based
Programmable Logic Control (PLC) system. To ensure proper functioning of the digestion
process, the different mixing cycles are synchronized through the PLC system.
FRP coated platform from where fleshings is charged into the grinder
The
mixture
from
the
preparation tank is fed into Digestor 1 through a volumetric screw pump to ensure that the
addition takes place in a regulated manner. A centrifugal pump is used for mixing the
contents of the digestors. For each loading in digestor 1, an equivalent volume of discharge is
effected from digestor 2. A screw pump pumps the digested slurry to the sludge drying beds.
The system is expected to effectively degrade the organics in the fleshings to the extent of
destroying 60% of VS. The expected gas yield is @ 0.9 m3 per kg of VS destroyed.
As safe use of biogas in a dual fuel engine requires removal of hydrogen sulphide (H2S), the
generated gas is passed through a H2S scrubber unit. It reduces the H2S level in the gas from
about 1% to less than 0.1%.
8
The biogas is mixed with diesel in the ratio 70:30 and used as fuel in the generator. The
power generated is used for operating the biomethanation plant and an aerator (30 HP) in the
CETP.
H2S Scrubber Unit
Dual Fuel engine
6.5 Process of commissioning
Filling the digestors with water to check all hydraulic devices and pipelines was the first step
in the start-up of the bio-reactor. Cow dung with 13-15% total solids and volatile solids
ranging from 70 – 80% was fed to the digestors as seeding material to start the digestion
phase. Loading was done volumetrically in batches of 1 m3. The automation system installed
in the plant was observed to function well. The sequence of operation and duration of each
operation were checked. After feeding about 12 tonnes of seeding material, feeding of
fleshings and primary sludge was started. The quantity of the material fed was progressively
increased. When the quantity of fleshings and sludge fed to the digestor in a day increased to
1.5 tonnes and 1.0 m3 respectively, gas generation was in the range of 25 – 30 m3/d.
9
The H2S scrubber unit was trial run. Initial problems encountered were sorted out by the
service personnel of Indian Institute of Science, Bangalore, suppliers of the scrubber. The
scrubber was found to reduce the H2S level in the biogas from 1% to < 10 ppm.
7. OPERATION OF THE PLANT: 01 JAN 2000 – 30 JUNE 2001
Since commissioning, the plant has been operated regularly. Being the first working plant of
its nature, many operational and maintenance problems had been encountered. The ensuing
paragraphs provide details of operation of this plant in the period 1 January to 30 June 2001,
problems faced and the performance of the plant vis-à-vis the design features.
7.1 Operational controls - measurement and monitoring of different parameters
The following operational controls had been followed during the period March 2000 to June
2001.
- Analysis of the fleshings and primary sludge fed into the system for % moisture, %
total solids and composition of total solids, namely, the volatile and fixed solid
contents.
- Analysis of samples drawn from feed and drain chambers and the four compartments
of the digestors for % moisture, % total solids, % volatile solids in total solids and
total alkalinity.
The CO2 level in the generated biogas had been monitored regularly. The volume of gas
generated – m3/d – had been measured. The H2S level in the gas, after treatment in the H2S
scrubber unit, had also been monitored regularly.
7.2 Brief details of operation
During January 2000, for most of the days, the feed was limited to one tonne of fleshings per
day. Feeding of primary sludge had to be temporarily discontinued consequent to clogging of
the 110 mm φ pipe connecting the two digestors. Towards the last week of January, feeding
of primary sludge was resumed and by end of January, the daily feed constituted one tonne of
fleshings and 500 litres of primary sludge.
During the month February 2000, the quantity of feed was gradually increased to
1.5 tonnes of fleshings
1.0 tonne of primary sludge
The CO2 level in the generated gas was measured once in 2 days and H2S level once in a
week.
The CO2 level in the biogas was between 28 and 36 % and H2S ranged from 0.6 – 0.9%.
The volume of gas generated was about 25-30 m3/d. As the gas generation was observed to be
low, it was decided to measure the quantity of feed accurately, analyse samples drawn from
feed/drain tanks and the different compartments of the digestors for the following
characteristics:
10
-
pH
Total solids
Volatile solids
On analysis, it was realized that the volatile solids in the fed material – fleshings and primary
sludge - were lower than what had been assumed in the DPR. The low VS content of feed
was traced to:
 the type of fleshings received from different tanneries and the type of wastewater
treated in the CETP supplying the primary sludge.
 origin of the rawhides yielding the fleshings.
 type of liming practised – prolonged less sulphide method or the rapid method.
The feed rate was maintained at 1.5 to 2.0 m3/d depending on the availability of fleshings. It
was gradually increased and by the middle of June 2000, it reached a rate of 5 m3/day – 3
tonnes of minced fleshings and 2 m3 of primary sludge. The gas production, however, did not
increase with the increase in feed.
While the feed rate was gradually increased to the capacity level of 5 m3/d, over flowing of
the material from digestor 1 through the U tube was noticed. On examination, the
overflowing substance was found to be a frothy matter. This matter entered the gas line too.
The operation was stopped and no feeding was done for a few days. After cleaning the gas
line the operation of the plant was resumed.
The performance of the plant in May and June 2000 was reviewed with Mr. M. Aloy,
international expert, in July 2000. On analysing the data, the following points emerged:
-
-
There was a sudden increase in the VS loading in June compared to May. From an
average feeding rate of about 160 kg/d of VS in May, it shot up to > 450 kg/d on a
few days in June.
This shock loading was suspected to have caused the frothing problem in digestor 1.
Mr. Aloy recommended maintaining feed rate on the basis of VS loading and not on
volumetric monitoring. During the months of July and August 2000, the grinder was not
operational on most of the days on account of frequent breaking of cutter wheel assembly.
Consequently, feeding was limited to 2 m3 of primary sludge on alternate days. The gas
production was in the range of 45 – 50 m3/day.
Feeding of fleshings was restarted in September 2000 with the locally fabricated cutter wheel
assembly mounted on the grinder. Feeding was done on the basis of VS loading. On average,
2 m3/day of feed comprising minced fleshings and primary sludge mixed in the ratio of 3:2
was given maintaining the VS loading rate in the range of 80-105 kg/day.
As gas yield continued to be in the region of 40 - 50 m3/d, it was felt that the population of
the bacteria responsible for the methenogenesis phase was low and hence cow dung was fed
to the system for a few days in January 2001. By the end of January 2001, the gas production
increased to 70 – 75 m3/d. Operation of the plant was continued and the gas yield during
February 2001 increased to 80 – 90 m3/d.
11
In Table 3, month-wise cumulative data relating to total solids and volatile solids in the feed
and the drained material, volume of gas generated, specific gas generation with respect to VS
destroyed, etc. are given for the period March 2000 to June 2001.
12
Table 3: Month-wise operational data
Month
No. of
feed
days
Mar, 00
Apr, 00
May, 00
Jun, 00
Jul, 00#
Aug, 00
Sep, 00
Oct, 00
Nov, 00#
Dec, 00
Jan, 01
Feb, 01
Mar, 01
Apr, 01
May, 01
Jun, 01
24
18
24
25
13
21
13
4
27
22
23
13
22
15
9
Feed
Volume
Total
3
M
solids, kg
47.5
3810
28.1
2507
45.0
3450
81.0
6323
25.7
2041
47.0
3815
34.3
2857
13.0
1042
69.8
5747
52.5
4857
84.3
8462
43.7
5509
78.2
9573
89.0
8929
41.0
4990
Volatile
solids, kg
2227
1712
1880
3874
1280
2159
1480
591
2810
2642
4291
3076
4317
4750
2588
Drain
VS on TS
58.5%
68.3%
54.5%
61.3%
62.7%
56.6%
51.8%
56.7%
48.9%
54.4%
50.7%
55.8%
45.1%
53.2%
51.9
Total
solids, kg
3258
1631
2175
1499
1315
2359
1842
578
3070
2574
4789
1549
4332
4047
2620
VS
destroyed
kg
%
Volatile
solids, kg
1214 1013
631 1081
844 1036
648 3226*
515
765
925 1234
608
872
323
268
972 1838
1015 1627
1945 2346
536 2540
1486 2831
1418 3332*
960 1628
45
63
55
60
32
31
26
65
62
55
83
66
63
Gas production
volume, m3
Total
Average
/day
839.46
27.08
1220.51
40.68
1391.00
44.87
1445.00
48.17
1477.13
47.65
1672.39
53.95
1305.55
43.52
1182.68
38.15
525.61
17.52
934.75
30.15
1407.00
45.39
2193.25
78.33
1939.50
62.56
2322.00
77.40
1258.00
40.58
739.78
24.66
Specific gas
production
0.83
1.13
1.34
0.45
2.19
1.06
1.36
1.96
0.96
0.86
0.93
0.76
0.82
0.38
0.45
Note:
* “Shock loadings” caused overflowing of material from the digestor 1 in June 2000, May 2001 and June 2001.
#
Due to breakdown of the grinder (cutter wheel assembly) feeding of fleshings was discontinued in July and November 2000.
13
8. PROBLEMS ENCOUNTERED
8.1 Problems relating to grinder
The grinder installed at the site is of Danish make. The machine is able to grind the wet limed
or green fleshings fed into it to the required particle size of 6 mm very smoothly and
effectively. 4 spare sets of cutter wheel and blades had been supplied along with the machine.
The breaking of blades was first encountered in March 2000 after about three months of
regular operation of the grinder. Before end of June 2000, it broke four more times. The
broken part was replaced by spares that were available. As importing spares from Denmark
was a time-consuming and costly exercise, it was decided to develop a vendor locally for the
fabrication and supply of cutter wheels. An engineering company having a fairly well
equipped workshop at Vellore was identified and after ascertaining the metallurgical
characteristics of the material of construction of the item, a counter sample was developed.
This was tried on the grinder and found to be of acceptable quality. Further improvements
were effected and 4 sets of cutter wheel assembly were fabricated and supplied by the
Vellore-based vendor. The locally made items were found to be satisfactory in quality. The
grinding was as smooth, noiseless, effective and quick as obtained using the imported ones.
Data relating to disruption of operation of the plant due to breaking of cutter wheel assembly
of the grinder is given in Table 6.
Table 6 History of cutter wheel-related break down of grinder
#
Dates
Made operational
11 March 2000
1.
Breaking
11 March 2000
2.
11 May 2000
11 May 2000
3.
20 May 2000
20 May 2000
4.
27 June 2000
27 June 2000
5.
29 June 2000
03 August 2000
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
09 August 2000
19 October 2000
16 November 2000
28 November 2000
07 February 2001
17 February 2001
05 March 2001
07 April 2001
12 April 2001
22 April 2001
03 May 2001
04 May 2001
26 August 2000
04 November 2000
25 November 2000
29 November 2000
09 February 2001
19 February 2001
07 March 2001
09 April 2001
14 April 2001
24 April 2001
04 May 2001
06 May 2001
Remarks
Readily available imported spare was
mounted.
mounted.
mounted.
mounted.
A fresh spare had to be imported and
mounted. Developmental work with
local vendor was started simultaneously.
Locally fabricated one was mounted.
14
18.
19.
20.
11 May 2001
23 May 2001
27 May 2001
13 May 2001
25 May 2001
29 May 2001
With frequent breaking of cutter wheels, the following control measures have been
implemented:
• Fleshings received from tanneries to be thoroughly checked for presence of
any metallic object or stones.
• The rate of grinding to be maintained as recommended by the supplier to avoid
overstraining the knives.
8.2 Availability of fleshings
Tanning activity in tanneries is affected by fluctuations in the international trade in leather.
Tanneries work overtime during the busy months of a year and have much less work during
the dull phases. There were ‘dull phases’ during the period of observation when tanneries in
Melvisharam did not work to capacity. There was no soaking in many units during such
periods and it was difficult to find the required quantity of fleshings in Melvisharam.
Fleshings had to be brought from Ranipet a nearby tannery cluster during such periods to
maintain regular feeding of the digestor. However availability of fleshings for the plant has
never been a serious problem.
8.3 Inconsistency in the quality of fleshings
Raw hides from different sources are processed in the Melvisharam cluster. Apart from
locally procured wet salted hides, raw hides imported from Europe, CIS countries, Africa and
Australia are processed in the tanneries at Melvisharam. Consequently, the characteristics of
the fleshings received in the plant vary widely from batch to batch and from day to day. It is
seen that fleshings obtained from hides of European / Australian origin have a much higher
VS content than those got from hides of Indian origin. With the quantity of feed controlled
volumetrically, such inconsistencies in the VS content resulted in “shock loadings” leading to
the frothing and foaming problem and overflow of the frothy matter from the digestor.
Sometimes the frothy matter entered the gas line too. To avoid such ‘shock loadings’, it was
decided to control the feed quantity on the basis of VS loading from August 2000.
8.4 Digester overflow and frothing problem
The designed feed rate of 5 m3/day was started during 1st week of June 2000 and the frothing
and overflow problems started after 8 days of continuous feeding (5 m3/day). The 5 m3/day
feeding was also performed during May 2001 continuously for a period of 19 days and the
overflow problem re-started. The occurrence of overflow / frothing problems on the 20th day
had been attributed to the following reasons.
The scum or foamy fatty material accumulation above the scum funnel could not be sensed
and identified and therefore the gas pipeline got choked preventing the biogas flow to the gas
holder. The developed buoyancy force in the digester due to the blockage of gas pipeline by
scum or foamy material and the accumulation of VFA with organic loading were perceived to
be the causes of digester overflow. It has therefore been proposed to build a sensor
mechanism to identify the scum or foamy fatty material above the scum funnel in the digester
before it reached to the gas pipeline. The digester overflow problem leads to the termination
15
of digester feeding process for about 10 days. The digester overflow problem is also
attributed to the persisting inequilibrium between the acetogenic and methanogenic microbial
population in the digester, which could be inferred by the recorded VFA concentration of
15,000 – 20,000 mg/l during the overflow time. Consequently, the accumulation of VFA due
to continuous feeding of 5 m3/day (400 kg VS/day) has to be modified to 4 m3/d (300 kg
VS/d). This will provide for longer retention time for VFA to be converted to biogas as the
methanogens are slow growing microbes. However, the indices/circumstances attending the
overflow problem and effective preventive measures are being further evaluated to reduce the
digester downtime.
9. PERFORMANCE OF THE PLANT
Against the projected gas yield of 320 m3/d for a daily input of 5 m3 of feed – 3 m3 of
fleshings and 2 m3 of sludge – the gas yield actually obtained in the plant is low. The
maximum gas yield recorded in a day was 96 m3 on 26 February 2001. It has largely
remained in the range of 40 – 50 m3/d on most of the days during the last 18 months of
regular operation of the plant. However the feed rate too was not uniform and regular
throughout. While problems arising from breakdown of the grinder and non-availability or
irregular availability of fleshings contributed to disruption of work now and then and
eventually affected gas generation, the following factors have been identified as responsible
for the low gas yield:
•
The acidogenesis phase of the anaerobic reaction appeared to be satisfactory as
ascertained by the analysis of samples drawn from the different compartments of the
digestors. However, the methanogenesis phase of the reactors needed investigation.
When the VS loading increased progressively, the volume of gas generated increased.
However, when the gas production was over 60 m3/d, the matter inside the digestors
began to overflow. Consequently the feeding had to be stopped and the gas yield
eventually came down to 20 – 30 m3/d. When the overflowing took place the VFA
(volatile fatty acid) content of the matter in the digestors was in the region of 16000 –
17000 mg/l. This raised the doubt whether the population of the methane-producing
bacteria was adequate. In January 2001,when the digestors overflowed and the VFA
content was found to be 17000 mg/l, cow dung was fed to the digestor for a few days
to help improve the population of methane-producing microorganisms. This attempt
produced good result – the gas yield improved from about 40 m3/d to 70 – 75 m3/d.
Perhaps feeding of a more appropriate seed material may help improve the population
of methane-producing microorganism and eventually the gas yield. CLRI, the agency
responsible for daily operation of the plant, is further investigating this aspect.
•
The fleshings and the primary sludge constituting the feed are analysed for total solids
and VS content daily. From the data available, it is seen that the VS content of
fleshings generally vary from 45% to 70%. This is far less than the value considered
in the DPR, namely 90% for fleshings. The VS content of the combined feed, as seen
from Table 3 ranges from 45% to 68% as against 83.6% assumed in the DPR.
•
The maximum electricity generated in a day is 315 kWh.
But for the low gas yield, the plant is functioning well and the results obtained over the
period January 2000 to June 2001 confirm the following:
16
•
•
•
•
•
The methane content of the gas generated is 60 – 70%, carbon dioxide 20 – 35%
and H2S about 1%.
The gas yield has been found to correspond to the volatile solids destroyed in the
system.
The actual rate of VS destroyed is in the range of 55 – 65%.
The scrubbing of the biogas in the H2S scrubber system reduces the H2S level
from to 1% to less than 0.1%.
The generated gas, after removal of H2S in the scrubber system, has been
successfully used as fuel in the dual fuel engine for generation of electricity.
The average monthly cost of operation of the plant until now is INR 55,000.
10. LESSONS LEARNT
Over the last many months of regular operation of the plant, the following lessons have been
learnt.
•
•
•
•
Feed has to be measured in terms of volatile solids and not in terms of volume
only. This is necessary to avoid shock loadings.
The maintenance of the mechanical equipment, particularly the grinder, requires
greater attention. Thorough screening of the fleshings to remove foreign objects
before feeding to the grinder is necessary. Feeding the fleshings in the stipulated
manner to the mincing chamber is essential to avoid over straining the knives and
to prevent breaking of the cutter wheel assembly.
All sources of supply of fleshings have to be categorised in terms of the quality of
fleshings. This will help prevent shock load risks.
Developing local sources for supply of essential spares such as cutter wheel for
the grinder is useful as it saves time, helps avoid long waits and is much less
expensive compared to the option of importing spares from overseas suppliers.
11. FUTURE
With the feasibility of biomethanation of wet limed fleshings and sludge from effluent
treatment plants for generation of biogas and electricity having been established, it is now
important to optimize yield of gas & electrical energy. As the VS content in the fleshings
available in Melvisharam cluster is about 55%, it has been decided in consultation with Mr.
Michel Aloy that future efforts should target a gas yield of about 180-190 m3/d as shown
below:
Biogas
(188 m3)
60% VS destroyed
Gas production @ 0.9 m3/kg of VS
4t
Fleshing
15% TS
TS 600 kg
VS @ 55%
330 kg
17
TS 650 kg**
Digestor
Digested sludge
If the performance of the plant in Melvisharam is optimised to yield biogas at the rate of 180
– 190 m3/d, this option of utilisation of limed fleshings, an untanned solid waste of tanning
industry and sludge, a solid waste of the ETPs, is likely to become popular, not only in the
tannery clusters of Tamil Nadu, India but in other countries of the region as well.
A realistic cost-benefit analysis is feasible only after the plant performance is stabilized and
the yield of gas and electricity are optimized for the given quality of inputs.
ACKNOWLEDGEMENT
Contributions of the following individuals / organizations to the successful implementation of
the project are gratefully acknowledged:
1.
2.
3.
4.
5.
6.
7.
Ministry of Non-conventional Energy Sources, GoI, New Delhi.
Central Leather Research Institute, Chennai, India.
Enkem Engineers P. Ltd. Chennai, India.
Mr. Mladen Bosnic, Consultant
CETP-Vishtec, Melvisharam, India.
Tanners of Melvisharam
Indian Institute of Science, Bangalore, India.
18
19
20
MARAN






  
 
 


 
 
 

  
ANNEX 5: FLOW DIAGRAM OF BIOMETHANATION PLANT AT VISHTEC, MELVISHARAM
21
Annex 6
OPERATIONAL DATA
Period: 28 March to 27 April 2000
I. FEED MATERIAL
1. Fleshing
Date
Weight,
(tonnes)
28
29
30
31
01
04
05
06
07
08
10
12
15
18
19
21
22
25
26
27
% Moisture
1.500
0.900
0.900
1.300
1.500
1.150
1.750
0.773
1.080
0.950
1.230
0.900
1.085
85.7
84.1
81.0
83.8
85.2
86.6
83.4
87.07
82.39
87.45
87.87
86.55
79.36
77.80
73.10
62.28
70.10
71.39
% TS
14.3
15.9
19.0
16.2
14.8
13.4
16.6
12.03
17.61
12.55
12.13
13.45
20.64
22.20
26.90
28.48
24.45
37.72
29.90
28.61
Composition of solid matter
% VS
% FS
82.2
17.8
52.9
47.1
52.9
47.1
66.9
33.1
64.2
35.8
53.3
46.7
68.7
31.3
85.01
14.99
65.76
34.24
55.87
44.13
81.90
18.10
64.78
35.22
68.76
31.24
71.10
28.90
64.90
35.10
68.16
67.17
73.01
26.99
64.92
35.08
65.39
34.07
2. Primary sludge
Date
28
29
30
31
01
04
05
06
07
08
10
12
15
18
19
21
Volume
(m3)
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
0.7
0.7
0.9
1.0
0.7
1.1
0.5
0.8
%
Moisture
98.2
95.7
95.6
95.6
95.8
95.6
96.1
96.59
95.61
97.61
98.35
96.82
96.03
95.90
96.50
-
% TS
1.8
4.3
4.4
4.4
4.2
4.4
3.9
3.41
4.39
2.39
1.65
3.18
3.97
4.10
3.50
6.09
Composition of solid
matters
% VS
% FS
78.8
21.2
38.7
61.3
31.4
68.6
31.5
68.5
32.3
67.7
33.7
66.3
37.2
62.7
27.99
72.01
40.27
59.73
30.42
69.58
24.60
75.40
40.31
59.69
46.68
53.32
43.60
56.40
35.50
64.50
45.72
-
Total Alkalinity
mg/l
15625
18403
4861
21528
61111
29514
34028
-
22
22
25
26
27
0.7
1.0
0.6
0.8
93.92
93.24
96.60
3.68
6.08
6.76
3.40
30.89
41.49
36.58
41.20
58.51
63.42
58.80
-
3. Material in feed chamber
Date
Volume
m3
28
29
30
31
01
04
05
06
07
08
10
12
15
18
19
21
22
25
26
27
2.00
2.00
2.00
2.00
2.00
2.00
2.00
2.00
1.50
2.30
1.50
1.50
1.50
2.75
1.50
1.50
pH
% Moisture
% TS
92.2
89.5
96.2
88.0
89.2
91.1
92.4
92.66
90.35
80.09
92.31
92.24
86.19
89.40
93.80
88.24
84.43
70.48
7.8
10.5
3.8
12.0
10.8
8.9
7.6
7.64
9.65
19.91
7.69
7.76
13.81
10.60
6.20
13.50
15.52
11.76
15.57
29.52
8.7
9.3
9.4
10.2
9.4
11.4
9.6
9.91
7.23
7.87
7.08
8.26
9.85
9.13
7.48
7.20
8.27
9.40
9.21
Composition of
solid matter
% VS
% FS
87.7
12.3
93.8
56.2
44.9
55.1
59.9
40.1
56.5
43.5
55.1
44.9
56.1
43.9
60.98
39.02
58.14
41.86
58.47
41.53
76.30
23.70
47.98
52.02
59.91
40.09
57.80
42.20
56.30
43.70
73.20
62.60
62.21
37.79
59.11
40.89
79.00
21.00
Total
Alkalinity, mg/l
13450
11300
7000
10750
-
II. DRAINED MATERIAL
1. Material in drain chamber
Date
Volume
pH
m3
28
29
30
31
01
04
05
06
07
08
10
12
15
18
2.00
2.00
2.00
2.00
2.00
2.00
2.00
2.00
1.50
2.30
7.5
7.4
7.4
7.5
7.5
7.6
7.6
7.80
7.65
7.86
7.66
7.64
7.68
7.84
%
Moisture
% TS
92.7
93.6
92.5
93.6
93.3
92.5
94.6
93.81
92.29
92.07
93.93
94.08
89.04
86.00
7.3
6.4
7.5
6.4
6.7
7.5
5.4
6.19
7.71
7.93
6.07
5.92
10.96
14.00
Composition of
solid matter
% VS
% FS
29.1
45.3
42.8
40.4
44.2
36.9
36.7
34.13
34.30
35.40
29.30
40.42
35.07
34.50
71.9
54.7
57.2
59.6
53.8
63.1
63.3
65.87
65.70
64.60
70.70
59.58
64.93
65.50
Total
COD
mg/l
53240
47890
50933
39352
40278
34375
49653
54167
26389
Soluble
COD
mg/l
10480
6852
16647
16111
16250
17639
21389
10000
23
19
21
22
25
26
27
1.50
7.76
82.50
17.50
17.00
82.99
56944
16667
1.50
2.75
1.50
1.50
8.02
7.68
7.78
7.77
91.91
91.50
92.13
2.86
8.09
8.50
7.87
38.48
36.71
44.36
35.52
63.29
55.63
64.48
49306
84375
-
18889
17361
-
Total
COD
mg/l
Total
Alkalinity
mg/l
III. MATTER IN DIGESTORS
1. Sample drawn from Compartment No. 1
Date
pH
Temp
o
C
%
Moisture
%
TS
28
29
30
31
01
04
05
06
7.2
7.3
7.4
7.5
7.5
7.4
7.5
7.47
31.5
32.7
32.5
32.0
29.4
32.5
33.6
33.5
96.95
95.13
96.83
96.21
97.92
97.07
3.05
4.87
3.17
3.80
2.08
2.93
42.17
47.11
50.95
39.02
38.64
38.19
57.83
52.89
49.05
60.98
61.36
61.81
31816
63370
21527
20903
26945
37778
07
08
10
7.50
7.44
7.51
33.2
34.1
34.6
97.27 2.76
96.50 3.50
97.03 2.97
46.70
40.54
44.60
53.30
59.46
55.40
21111
31389
29444
11
12
7.52
7.45
7.59
7.53
7.53
7.61
7.55
7.66
7.57
7.59
7.61
7.74
7.53
7.64
7.59
34.4
34.1
34.6
35.9
36.4
35.3
34.5
33.1
36.4
33.7
34.6
38.8
36.9
37.2
97.60 2.40
96.90 3.10
50.10
45.10
49.90
54.90
32500
26111
98.00
97.60
97.00
95.60
96.20
96.30
97.00
-
51.40
39.60
48.38
40.40
36.60
40.40
39.61
44.31
40.70
46.76
48.60
60.40
51.62
59.60
63.40
59.60
-
32500
46389
27222
38611
28611
46944
35000
35000
12225
15150
14950
15050
20500
21750
20750
33200
23832
22500
23324
24832
18500
24332
19250
18500
17000
17500
28666
27832
34998
23499
30332
-
Composition of
solid matter
% VS % FS
Total
COD
mg/l
Total
Alkalinity
mg/l
58134
43689
20348
13650
14250
14750
15750
13
14
15
17
18
19
20
21
22
25
26
27
Composition of
solid matter
% VS % FS
2.00
2.40
3.00
4.40
3.80
3.70
3.00
3.72
3.28
4.13
3.60
S2mg/l
266.9
199.0
262.5
209.0
201.4
314.4
326.16
377.60
480.00
312.00
356.00
316.00
286.04
258.46
233.60
325.12
58.72
247.36
263.87
187.92
294.00
298.08
Date
28
29
30
31
pH
Temp.
o
C
%
Moisture
%
TS
7.3
7.4
7.4
7.5
30.8
32.5
32.9
31.7
96.67
98.23
3.33
1.77
23.33
44.20
76.67
55.80
S2mg/l
290.1
183.2
199.0
181.6
24
01
04
05
06
7.5
7.4
7.5
7.54
29.1
32.9
33.1
33.4
97.56
97.94
96.10
2.44
2.06
4.90
37.62
34.64
34.49
62.38
65.36
65.51
19861
25560
28125
07
08
10
7.51
7.49
7.52
33.2
33.6
34.2
94.40
95.31
96.69
5.60
4.69
3.31
43.36
33.12
42.15
56.64
66.88
57.85
12222
34722
34722
11
12
7.54
7.49
7.55
7.57
7.54
7.61
7.64
7.69
7.61
7.60
7.57
7.84
7.57
7.60
7.62
34.3
34.0
34.6
35.3
36.1
35.2
34.5
33.1
36.5
34.1
34.2
39.9
36.8
36.6
97.70
97.10
2.30
2.90
51.40
44.00
48.60
56.00
30000
26944
97.80
97.20
95.60
95.90
94.60
96.20
96.00
-
2.20
2.80
4.40
4.10
5.40
3.80
4.00
2.55
2.74
3.12
3.10
44.60
43.60
42.01
32.80
34.30
37.20
43.87
44.73
48.50
51.99
55.40
56.40
57.99
67.20
65.70
62.80
-
25833
56667
30278
37778
31389
34722
29444
38333
30000
15250
20250
19250
19000
40600
27499
14500
22824
23666
18500
25832
18000
17900
16800
17500
26000
29832
24998
25925
-
Composition of
solid matter
% VS
% FS
Total
COD
mg/l
Total
Alkalinity
mg/l
14200
14750
15150
15350
15750
19800
164.6
99.8
111.7
122.8
140.3
-
18500
236.0
19000
28800
19333
11750
22491
18999
17500
22332
17500
17800
17100
16500
239.92
13
14
15
17
18
19
20
21
22
25
26
27
226.2
294.8
393.60
402.40
512.00
376.00
396.00
276.00
251.12
241.12
171.20
216.96
183.68
222.59
239.20
302.16
314.40
447.12
Date
pH
Temp.
o
C
%
Moisture
%
TS
28
29
30
31
01
04
7.3
7.3
7.4
7.4
7.5
7.5
31.3
32.1
32.3
31.4
28.9
32.5
97.96
96.99
98.17
97.52
2.04
3.01
1.83
2.48
57.87
47.02
48.82
38.56
42.13
52.96
51.18
61.44
05
7.6
33.2
97.78
2.23
35.85
64.15
06
7.60
33.1
97.86
2.14
35.48
64.52
23568
41721
22500
20,41
7
30,27
8
37778
07
08
10
7.60
7.57
7.59
32.7
33.9
34.0
98.62
96.76
97.83
1.38
3.24
2.17
51.79
34.53
42.77
48.21
65.47
57.23
36111
25833
24444
11
12
7.62
7.57
7.63
7.65
7.63
7.71
7.75
34.2
33.2
34.1
34.9
35.5
35.2
33.9
97.60
97.90
2.40
2.10
54.00
42.50
46.00
57.50
23611
24722
97.80
97.70
96.10
97.60
2.20
2.30
3.90
2.40
43.90
37.50
44.85
56.10
62.50
55.15
28333
40278
13
14
15
17
S2mg/l
272.80
304.00
284.00
272.00
264.00
220.10
221.12
258.56
25
18
19
20
21
22
25
26
27
7.79
7.75
7.78
7.70
8.09
7.66
7.70
7.70
32.7
34.8
33.7
34.9
39.0
36.4
36.4
96.30
97.20
96.00
-
3.70
2.80
4.00
1.86
2.28
3.02
1.90
41.10
33.90
44.60
44.01
40.83
35.40
45.73
58.90
66.10
55.40
-
26111
31944
22778
28611
24167
36944
22778
25000
27332
21665
22000
-
196.16
192.00
230.81
135.04
269.52
352.80
398.16
Composition of
solid matter
% VS
% FS
Total
COD
mg/l
Total
Alkalinity
mg/l
148.40
103.80
95.80
126.70
103.50
204.60
216.40
288.00
197.40
171.20
167.40
154.56
192.00
226.72
247.36
269.52
455.28
385.92
Date
PH
Temp.
o
C
%
Moisture
%
TS
28
29
30
31
01
04
05
06
7.3
7.3
7.3
7.4
7.4
7.5
7.5
7.6
31.4
32.1
32.3
31.5
29.1
31.7
32.3
31.3
97.95
96.82
98.37
97.51
96.95
97.84
2.05
3.18
1.63
2.49
3.05
2.16
54.48
47.21
41.70
35.74
37.59
37.71
45.42
52.79
58.30
64.26
62.41
62.29
36137
34243
22500
20208
23056
32500
07
08
10
7.7
7.58
7.61
30.3
32.1
33.9
98.30
96.55
97.81
1.70
3.45
2.19
47.88
36.19
41.65
52.12
63.81
58.35
31111
24167
25833
11
12
7.66
7.59
7.65
7.64
7.64
7.72
7.76
7.78
7.76
7.79
7.78
8.07
7.70
7.71
7.72
34.3
33.3
34.0
34.1
35.2
35.0
34.1
33.1
34.9
33.7
34.8
38.2
36.5
36.2
97.90
97.40
2.10
2.60
52.70
50.10
47.30
49.90
27778
27500
14500
14750
14300
15400
15000
18500
20000
18500
29200
20165
8750
23824
17999
16760
97.50
97.10
95.20
98.20
97.10
98.80
98.70
-
2.50
2.90
4.80
1.80
2.90
1.20
1.30
1.80
2.43
2.91
2.10
42.50
37.60
44.68
38.10
30.50
44.00
43.49
41.44
35.20
43.66
57.50
62.40
55.32
61.90
69.50
56.00
-
33889
29722
21111
32222
21111
26111
26667
25278
21667
18000
18200
17300
17500
16666
19000
19165
22332
-
13
14
15
17
18
19
20
21
22
25
26
27
S2mg/l
226.40
252.00
292.00
214.99
IV. GENERATION OF BIOGAS
Date
28
29
30
31
01
Volume, m3/day
18.00
22.00
17.20
17.50
19.70
Composition
% CO2
39
39
-
% H2 S
0.8
0.6
-
26
02
03
04
05
06
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
22.50
29.50
36.50
27.00
32.00
31.76
48.25
46.00
48.65
48.60
43.50
45.25
45.00
43.00
41.00
45.25
46.50
43.75
42.50
57.90
53.50
43.50
50.23
55.50
56.00
57.00
50.00
35
26
-
0.6
0.8 – 1.0
-
27
OPERATIONAL DATA
Period: 01 to 31 May 2000
I. FEED MATERIAL
1. Fleshing
Date
02
03
04
05
09
10
11
12
13
15
16
18
19
20
22
23
24
25
Weight,
tonnes
0.989
1.200
0.700
1.228
0.425
0.872
1.585
1.794
2.100
2.100
2.100
1.700
2.100
2.100
3.000
2.166
2.096
1.500
% Moisture
80.96
88.60
75.87
91.16
74.50
77.35
76.86
89.96
86.06
87.90
82.22
86.85
87.48
88.13
89.15
90.01
-
% TS
19.04
11.40
24.13
8.84
25.50
22.65
23.14
10.04
13.94
12.10
17.78
13.15
12.52
11.87
10.85
9.99
-
% VS
% FS
67.37
32.63
54.30
45.70
70.18
29.82
59.86
40.14
59.18
40.82
84.41
15.59
83.14
16.86
49.26
50.74
56.53
43.47
55.04
44.96
75.53
24.47
53.63
46.37
56.49
43.51
57.29
42.71
56.93
43.07
64.41
35.59
-
2. Primary sludge
Date
02
03
04
05
09
10
11
12
13
15
16
18
19
20
22
23
Volume
m3
0.8
0.8
0.5
0.8
0.3
0.6
1.0
1.2
1.4
1.5
1.5
1.2
1.7
1.7
1.5
1.5
% Moisture
94.89
98.30
97.66
97.95
95.66
90.86
85.20
97.80
97.96
96.24
93.56
96.45
94.71
95.88
91.83
93.46
% TS
5.11
1.70
2.34
2.05
4.34
9.14
14.80
2.20
2.04
3.76
6.44
3.55
5.29
4.12
8.17
6.54
% VS
% FS
29.29
70.71
24.60
75.40
28.66
71.34
26.75
73.25
35.71
64.29
26.71
73.29
28.80
71.20
28.92
71.08
30.96
69.04
21.42
78.58
24.45
75.55
36.48
63.52
35.61
64.39
34.20
65.80
35.51
64.49
27.01
72.99
28
Date
02
03
04
05
09
10
11
12
13
15
16
18
19
20
22
23
24
25
Volume
m3
1.5
2.0
1.0
2.5
1.0
1.5
2.5
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
pH
% Moisture
10.14
6.87
11.67
6.94
7.82
7.71
11.33
11.56
11.32
11.32
11.45
11.62
10.79
11.53
-
88.77
91.30
86.79
95.21
90.12
91.60
88.24
89.39
92.69
92.72
88.19
91.70
91.67
91.49
91.90
92.31
-
% TS
11.23
8.70
13.21
4.79
9.88
8.40
11.76
10.61
7.31
7.28
11.81
8.30
8.33
8.51
8.10
7.69
-
% VS
% FS
59.38
40.62
49.40
50.60
57.99
42.01
46.53
53.47
59.76
40.24
53.27
46.73
68.71
31.29
52.89
47.11
46.02
53.98
51.37
48.63
55.76
44.24
55.29
44.71
49.91
50.09
54.00
46.00
53.47
46.53
54.35
45.65
-
Date
02
03
04
05
09
10
11
12
13
15
16
18
19
20
22
23
Volume
m3
0.75
2.00
1.00
2.50
1.00
1.50
2.50
3.00
3.00
3.00
3.00
3.00
3.00
3.00
pH
7.90
7.86
7.90
7.78
7.70
7.90
7.66
7.75
7.66
7.84
7.70
7.89
7.72
%
Moisture
92.70
92.60
93.42
95.00
91.87
94.15
93.32
94.36
88.04
89.13
97.22
96.91
94.51
97.22
94.35
%
TS
7.30
7.40
6.58
5.00
8.13
5.85
6.68
5.64
11.96
10.87
2.78
3.09
5.49
2.78
5.65
Composition of
solid matter
% VS
% FS
31.60
36.73
34.86
36.46
38.01
33.06
35.04
40.14
41.71
45.81
36.78
35.13
40.27
47.18
34.12
68.40
63.27
65.14
63.54
61.99
66.94
64.96
59.86
58.29
54.19
63.22
64.87
59.73
52.82
65.88
Total
COD
mg/l
66071
50357
45357
68214
167143
28571
42857
100000
-
Soluble
COD
mg/l
21571
11428
15000
14143
34643
13714
11143
23429
-
29
Date
pH
Temp.
o
C
%
Moisture
%
TS
01
02
03
04
06
08
09
10
12
13
16
17
18
19
20
24
7.63
7.62
7.65
7.65
7.66
7.66
7.67
7.74
7.58
7.67
7.57
7.63
7.61
7.56
7.65
7.59
36.7
37.3
36.3
34.6
33.9
34.5
33.9
33.1
36.9
37.2
37.2
37.0
34.4
36.5
35.3
37.3
97.50
97.20
96.86
97.24
97.40
97.30
96.00
96.45
94.75
95.50
95.45
97.70
94.97
-
2.50
2.80
3.14
2.76
2.60
2.70
4.00
3.55
5.25
4.50
4.55
2.30
5.03
-
Composition
of solid waste
% VS % FS
43.17
38.2
37.53
40.5
39.81
35.89
38.58
45.02
41.74
34.68
40.45
41.36
43.59
-
56.83
61.8
62.47
59.5
60.19
64.11
61.42
54.98
58.26
65.32
59.55
58.64
56.41
-
Total
COD
mg/l
32778
34000
28571
34285
34285
27143
36000
48000
42000
64571
31142
54286
51143
Total
Alkalinity
mg/l
24629
24807
26345
21153
27114
22884
28268
29999
S2mg/l
287.49
455.11
588.00
300.00
396.00
226.00
375.00
430.14
290.43
285.82
388.00
-
Date
pH
01
02
03
04
06
08
09
10
12
13
16
17
18
19
20
24
30
31
7.60
7.60
7.68
7.70
7.68
7.70
7.70
7.73
7.65
7.63
7.61
7.66
7.66
7.59
7.61
7.61
7.74
7.76
Temp.
%
o
C
Moisture
37.1
39.8
36.5
34.2
33.9
34.3
33.9
32.7
36.1
36.5
37.2
36.2
34.9
36.0
35.7
36.9
32.3
33.7
97.80
97.20
97.40
96.35
97.03
97.81
97.60
96.60
96.92
97.51
97.35
96.30
96.09
95.65
97.30
-
%
TS
2.20
2.80
2.60
3.65
2.97
2.19
2.40
3.40
3.08
2.49
2.65
3.70
3.91
4.35
2.70
-
Composition
of solid waste
% VS % FS
38.73
29.09
33.80
39.11
36.92
38.66
37.86
36.89
45.71
19.38
41.53
37.81
34.53
45.87
-
61.27
70.91
66.20
60.89
63.08
61.34
62.14
63.11
54.29
80.62
58.47
62.19
65.47
54.13
-
Total
COD
mg/l
35556
32285
24857
34857
37143
35714
39714
41143
40286
33143
34571
53714
-
Total
Alkalinity
mg/l
23333
272884
25384
20384
28076
22699
27307
28460
-
S2
mg/l
275.39
492.01
456.00
312.00
376.00
226.00
274.00
343.30
315.02
426.58
335.70
-
30
Date
pH
01
02
03
04
06
08
09
10
12
13
16
17
18
19
20
24
30
31
7.71
7.7
7.76
7.77
7.79
7.8
7.79
7.8
7.72
7.66
7.67
7.69
7.72
7.73
7.63
7.68
7.79
7.78
Temp.
%
o
C
Moisture
37.0
38.9
36.1
34.0
34.3
34.6
34.4
33.3
36.1
36.5
37.0
36.3
34.7
36.1
35.0
36.8
32.7
33.9
97.90
98.20
97.50
96.53
97.99
97.33
97.50
96.70
97.58
97.58
96.96
96.76
97.49
97.91
97.55
-
%
TS
Composition
of solid waste
% VS % FS
Total COD
mg/l
Total
Alkalinity
mg/l
65.08
70.89
65.90
63.97
61.41
65.94
59.23
68.18
60.47
61.31
58.58
65.38
58.60
58.98
60.96
-
26667
23428
36285
36286
28000
26286
35429
41143
37714
31143
22286
24857
37428
-
22962
23461
24807
19422
24230
23076
31153
28653
-
Composition
of solid matter
% VS % FS
Total COD
mg/l
Total
Alkalinity
mg/l
36944
25428
22285
23143
29142
28000
29143
39143
38286
27714
24000
24286
39714
-
21851
24230
23845
19038
24230
23076
29422
27884
-
2.10
1.80
2.50
3.47
2.01
2.67
2.50
3.30
2.42
2.42
3.04
3.24
2.51
2.09
2.45
-
34.92
29.11
34.10
36.03
38.59
34.06
40.77
31.82
39.53
38.69
41.42
34.62
41.40
41.02
39.04
-
S2mg/l
283.46
394.02
464.00
368.00
268.00
242.00
347.00
275.33
292.42
400.56
339.50
-
Date
pH
Temp.
o
C
%
Moisture
%
TS
01
02
03
04
06
08
09
10
12
13
16
17
18
19
20
24
30
31
7.74
7.69
7.77
7.78
7.81
7.8
7.76
7.79
7.72
7.69
7.67
7.73
7.74
7.67
7.69
7.68
7.77
7.77
37.1
38.1
36.1
34.2
34.5
34.5
34.6
33.5
36.2
36.3
37.0
36.2
34.9
36.0
35.4
36.7
32.5
33.7
98.10
98.10
97.70
96.95
98.01
97.69
97.60
97.20
97.69
97.25
96.71
97.46
97.70
97.11
97.83
-
1.90
1.90
2.30
3.05
1.99
2.31
2.40
2.80
2.31
2.75
3.29
2.54
2.30
2.89
2.17
-
33.94
32.10
36.60
42.82
37.46
37.88
36.99
35.44
39.94
38.98
39.25
43.25
38.23
41.16
38.63
-
66.06
67.90
63.40
57.18
62.54
62.12
63.01
64.56
60.06
61.02
60.75
56.75
61.77
58.84
61.37
-
S2mg/l
259.26
467.19
464.00
344.00
308.00
153.00
379.00
282.88
288.64
362.96
350.80
-
31
Date
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Volume, m3/d
50.00
48.25
54.75
40.75
39.75
47.25
44.00
37.00
36.40
35.75
44.25
42.54
48.44
46.21
48.14
29.26
50.27
52.00
47.72
37.07
38.00
39.00
45.50
50.25
53.75
47.00
49.00
46.20
49.25
45.25
48.00
Composition
% CO2
-
% H2 S
-
32
OPERATIONAL DATA
Period: 01 to 30 June 2000
I. FEED MATERIAL
1. Fleshing
Date
Weight tonnes
01
02
03
04
05
06
07
08
10
13
17
18
19
20
21
22
23
24
25
28
29
2.100
2.100
2.100
2.100
2.100
2.100
3.000
3.000
2.214
1.740
1.800
3.000
3.000
3.000
3.000
3.000
3.000
3.000
2.400
3.000
2.140
% Moisture
% TS
67.22
81.26
71.49
82.87
80.42
83.49
69.19
77.54
70.63
70.63
65.98
54.76
32.78
18.74
28.51
17.13
19.58
16.51
30.81
22.46
29.37
12.20
34.02
45.24
% VS
% FS
84.99
15.06
71.17
28.83
57.40
42.60
69.47
30.53
76.68
23.32
62.69
37.31
83.98
16.02
75.06
24.94
86.76
13.24
54.52
45.48
78.46
21.54
78.82
21.18
2. Primary sludge
Date
01
02
03
04
05
06
07
08
10
13
17
18
19
20
21
22
Volume, m3
1.5
1.5
1.5
1.5
1.5
1.5
2.0
2.0
1.5
1.5
1.5
2.0
2.0
2.0
2.0
2.0
% Moisture
98.53
98.39
93.18
95.69
96.58
96.25
93.71
95.88
95.91
96.11
% TS
1.47
1.61
6.82
4.31
3.42
3.75
6.29
4.12
4.09
3.89
% VS
% FS
39.31
60.69
42.34
57.66
62.75
37.25
48.75
51.25
33.50
66.50
30.64
69.36
30.63
69.37
39.51
60.49
32.86
67.14
28.44
71.56
33
23
24
25
28
29
2.0
1.2
3.5
2.0
1.2
95.64
96.03
4.36
3.97
23.88
34.22
76.12
65.78
Date
01
02
03
04
05
06
07
08
09
10
13
17
18
19
20
21
22
23
24
25
28
29
Volume
m3
3.0
3.0
3.0
3.0
3.0
3.0
5.0
5.0
3.0
3.0
2.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
3.5
4.8
2.0
pH
% Moisture
7.83
7.12
10.22
8.91
8.99
9.45
8.64
8.17
6.72
% TS
87.64
91.82
82.29
89.39
90.63
91.50
88.30
84.05
89.30
88.87
91.82
87.61
82.21
12.36
8.18
17.71
10.61
9.37
8.50
11.70
15.95
10.70
11.13
8.18
12.39
17.79
% VS
% FS
58.75
41.25
56.58
43.42
67.75
32.25
58.31
41.69
61.17
38.83
50.53
49.47
60.98
39.02
70.06
29.94
57.36
42.64
57.94
42.06
51.51
48.49
67.04
32.96
70.50
29.50
Date
01
02
03
04
05
06
07
08
10
13
17
18
Volume
m3
3.0
3.0
3.0
3.0
3.0
3.0
5.0
5.0
3.0
3.0
2.0
5.0
pH
7.65
7.80
7.63
-
%
Moisture
% TS
96.57
98.26
93.57
97.05
93.03
97.28
3.43
1.74
6.43
2.95
6.97
2.72
Composition of
solid matter
% VS % FS
43.33
45.17
45.40
46.87
41.37
40.62
56.67
54.83
54.60
53.13
58.63
59.38
Total
COD
mg/l
Soluble
COD
mg/l
-
-
34
19
20
21
22
23
24
25
5.0
5.0
5.0
5.0
5.0
5.0
3.5
7.70
7.90
7.60
7.54
-
97.57
97.35
97.00
97.15
97.25
-
2.43
2.65
3.00
2.85
2.75
-
40.91
39.69
40.78
44.58
47.79
-
59.09
60.31
59.22
55.42
52.21
-
-
-
IV. MATTER IN DIGESTORS
Dat
e
pH
06
07
08
09
10
12
13
14
15
16
17
19
20
21
22
23
24
26
27
29
30
7.61
7.51
7.41
7.41
7.41
7.48
7.58
7.54
7.54
7.52
7.59
7.57
7.50
7.29
7.29
7.57
7.55
7.36
7.39
7.41
7.36
Temp.
o
C
%
Moisture
32.0
30.9
33.4
34.9
33.9
33.1
33.5
35.1
34.5
35.2
34.7
34.1
34.6
30.3
32.5
31.1
32.9
34.0
32.4
28.9
30.1
96.04
96.45
96.50
96.83
97.04
96.30
97.57
96.86
97.10
95.70
96.48
95.66
95.91
94.75
95.50
95.28
95.80
95.80
96.46
95.77
95.22
%
TS
3.96
3.55
3.50
3.17
2.96
3.70
2.43
3.14
2.90
4.30
3.52
4.34
4.09
5.25
4.50
4.72
4.20
4.20
3.54
4.23
4.78
Total
COD
mg/l
S2mg/l
Composition of
solid matter
%
% FS
VS
47.8
52.20
46.46
53.54
51.64
48.36
44.40
55.60
46.48
53.52
44.93
55.07
43.50
56.50
44.24
55.76
43.78
56.22
43.93
56.07
45.86
54.14
48.35
51.65
44.43
55.57
49.25
50.75
48.70
51.30
44.75
55.25
43.00
57.00
43.82
56.18
40.43
59.57
46.13
53.87
47.83
52.17
Total
Alkalinity
mg/l
42857
44000
47428
66.571
50000
47692
71692
59230
59615
41154
80385
96923
61153
73461
38846
43846
50385
35455
35819
35909
30728
29637
-
Composition
of solid matter
% VS % FS
Total
COD
mg/l
Total
Alkalinit
y
380.00
212.00
448.00
180.00
328.00
498.00
247.00
289.50
332.00
328.00
332.00
300.64
315.77
327.63
339.48
216.50
86.56
Dat
e
pH
Temp.
o
C
%
Moisture
%
TS
S2mg/l
mg/l
01
02
03
06
07
08
09
10
7.87
7.84
7.91
7.64
7.54
7.45
7.45
7.47
32.7
33.6
31.6
31.7
30.7
32.9
34.8
33.8
97.19
96.99
96.85
96.78
96.78
2.81
3.01
3.15
3.22
3.22
44.44
45.19
50.62
47.43
47.04
55.56
54.81
49.38
52.57
52.96
30285
33142
40857
-
-
420.00
444.00
404.00
35
12
13
14
15
16
17
19
20
21
22
23
24
26
27
7.53
7.50
7.56
7.56
7.59
7.58
7.65
7.51
7.38
7.33
7.44
7.42
7.45
7.50
38.0
33.5
35.1
34.6
34.8
34.6
34.1
34.3
30.1
32.5
31.4
32.7
33.5
32.8
96.60
97.74
96.65
96.80
96.87
96.79
95.27
96.32
95.50
95.15
96.60
96.00
96.37
97.10
28
29
30
7.44
7.38
3.08
28.4
30.3
73.72
96.03
-
3.40
2.26
3.35
3.20
3.13
3.21
4.73
3.68
4.50
4.85
3.40
4.00
3.63
2.90
96.9
2
3.97
-
44.23
35.09
44.00
41.87
41.45
42.70
47.69
42.10
47.86
48.05
45.61
40.61
40.87
39.70
55.77
64.91
56.00
58.13
58.55
57.30
52.31
57.90
52.14
51.95
54.39
59.39
59.13
60.30
66000
38857
52923
70769
51153
76923
39231
73462
48077
78076
60384
37692
34182
34000
32273
28723
-
224.00
344.00
545.00
259.14
410.00
336.00
344.00
312.40
320.24
288.11
347.39
268.35
26.28
47.61
-
52.39
-
-
-
-
Dat
e
pH
01
02
03
06
07
08
09
10
12
13
14
15
16
17
19
20
21
22
23
24
26
27
29
30
7.84
7.82
7.87
7.76
7.72
7.67
7.62
7.60
7.64
7.62
7.64
7.68
7.69
7.72
7.73
7.75
7.71
7.62
7.64
7.60
7.57
7.63
7.68
7.72
Temp.
o
C
%
Moisture
32.7
33.6
31.6
31.6
30.9
32.4
34.4
33.7
33.6
33.6
35.1
34.6
34.6
34.4
34.4
34.2
30
32.4
32.8
32.8
33
32.5
28.4
30.3
97.54
97.66
97.24
97.16
97.68
95.8
95.8
97.27
95.56
95.56
97.43
97.1
97.21
96.7
96.28
96.48
96.48
96.568
97.21
95.63
96.83
%
TS
Composition of
solid matter
% VS
% FS
2.46
2.34
2.76
2.84
2.32
4.20
4.20
2.73
4.44
4.44
2.57
2.90
2.79
3.30
3.72
3.52
3.52
3.43
2.79
4.37
3.17
41.49
40.83
47.80
43.67
45.32
44.00
41.85
44.41
42.01
38.63
43.56
46.02
41.58
39.05
45.04
45.07
45.07
41.02
40.18
46.58
42.32
58.51
59.17
52.20
56.33
54.68
56.00
58.15
55.59
57.99
61.37
56.44
53.98
58.42
60.95
54.96
54.93
54.93
58.98
59.82
53.42
57.68
Total
COD
mg/l
38571
31428
36285
49714
40571
58153
38461
35769
30769
55385
47692
67692
66153
34615
38077
36538
Total
Alkalinity
mg/l
32000
31455
29545
27273
30182
-
S2mg/l
432.00
256.00
184.00
196.00
292.80
401.00
308.00
213.00
289.00
265.36
320.24
312.72
296.01
307.87
307.87
193.26
36
Dat
e
pH
Temp.
%
o
C
Moisture
% TS
Composition of
solid matter
% VS
% FS
Total
COD
mg/l
Total
Alkalinity
mg/l
01
02
03
06
07
7.88
7.82
7.89
7.75
7.72
33.5
33.5
31.5
31.5
30.2
97.84
97.54
2.16
2.46
41.43
39.96
58.57
60.04
30000
-
-
08
7.65
32.7
97.39
2.61
49.26
50.74
41428
-
09
7.59
34.2
97.43
2.57
45.52
54.48
32571
-
10
7.57
33.7
97.62
2.38
47.16
52.84
-
-
12
13
7.65
7.64
32.5
33.1
97.00
97.23
3.00
2.77
41.47
45.18
58.53
54.82
35285
38857
-
14
7.64
34.8
97.61
2.39
44.20
55.80
-
-
15
7.65
34.7
97.10
2.90
41.71
58.29
53230
-
16
7.68
34.8
97.00
3.00
42.08
57.92
48307
-
17
19
7.73
7.75
34.2
33.7
97.36
96.70
2.64
3.30
39.47
46.92
60.53
53.08
29230
33461
-
20
7.76
33.9
96.97
3.03
37.27
62.73
30000
-
21
7.75
30.1
96.97
3.03
49.17
50.83
46154
28909
22
7.63
32.2
96.66
3.34
45.87
54.13
44231
33637
23
7.63
31.3
96.73
3.27
36.37
63.63
60384
28182
24
7.60
32.9
96.50
3.50
42.71
57.29
26
7.58
33.0
97.09
2.91
44.14
55.86
55384
25273
27
7.67
32.6
97.38
2.62
37.92
62.08
28461
29
30
7.41
7.36
28.4
30.4
97.34
96.84
2.66
3.16
38.78
40.79
61.22
59.21
37308
31154
27455
S2mg/l
379.0
0
296.0
0
348.0
0
204.0
0
320.0
0
296.0
0
247.0
0
358.0
0
281.0
0
320.0
0
300.6
4
304.6
6
288.1
1
288.1
1
252.5
4
110.2
7
82.61
Date
01
02
03
Volume, m3/d
38.00
43.00
48.00
Composition
% CO2
-
% H2 S
-
37
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
50.25
58.75
48.00
36.75
48.00
59.29
59.61
62.30
46.59
41.77
52.50
44.00
57.28
54.46
39.00
40.00
40.43
76.68
63.91
67.90
37.50
11.75
16.25
20.00
42.75
38.00
48.00
27
-
1
-
38
OPERATIONAL DATA
Period: 01 to 31 July 2000
I. MATTER IN DIGESTORS
Date
pH
01
03
04
05
06
08
10
11
12
13
14
15
16
17
18
19
20
21
22
24
25
26
27
28
29
31
7.34
7.40
7.49
7.52
7.57
7.62
7.67
7.78
7.79
7.79
7.81
7.82
7.84
7.86
7.79
7.84
7.81
7.84
7.87
7.83
7.89
7.92
7.88
7.86
7.87
7.87
Temp,
%
o
C
Moisture
32.2
30.6
27.7
28.9
31.0
31.9
33.0
30.4
31.0
31.8
31.5
33.0
32.5
33.1
35.0
33.3
35.3
34.7
32.0
34.1
31.0
29.5
32.8
33.4
32.3
32.5
95.89
95.98
95.89
95.69
96.90
96.39
96.18
95.99
95.91
96.46
96.07
96.41
95.83
96.35
96.14
96.59
96.51
96.58
96.32
96.30
96.03
96.58
96.67
96.10
96.13
%
TS
Composition
of solid matter
% VS % FS
4.11
4.02
4.11
4.31
3.10
3.61
3.82
4.01
4.09
3.54
3.93
3.59
4.17
3.65
3.86
3.41
3.49
3.42
3.68
3.70
3.97
3.42
3.33
3.90
3.87
46.68
47.55
44.94
44.33
49.15
46.63
43.39
44.04
44.08
47.26
47.46
42.22
48.09
41.76
41.95
42.81
42.98
46.67
43.00
43.59
45.90
40.01
44.27
46.55
44.01
Total
Alkalinity
mg/l
Total
COD
mg/l
S2
mg/l
53.32
52.45
55.06
55.67
50.85
53.37
56.61
55.96
55.92
52.74
52.54
57.78
51.91
58.24
58.05
57.19
57.02
53.33
57.00
56.41
54.10
59.99
55.73
53.45
55.99
29091
27818
28364
28909
29273
31455
30000
29091
29637
31692
32109
31483
30832
30821
31457
29363
30499
30499
29790
29686
27916
29082
30140
47692
41923
30462
40308
43692
51692
43461
50769
46538
50000
53846
47692
53461
51154
45000
45384
43846
48077
45769
44615
35769
38846
57692
339.48
237.48
316.00
340.24
336.00
328.00
332.00
248.00
269.00
302.00
262.00
321.44
305.70
341.04
364.56
338.08
-
Composition
of solid matter
% VS % FS
Total
Alkalinity
mg/l
Total
COD
mg/l
S2mg/l
28182
26909
25455
30091
28909
27273
27818
50000
39615
32308
48923
59385
47692
331.58
257.24
166.00
312.58
324.00
273.00
328.00
Date
pH
01
03
04
05
06
08
10
11
7.36
7.46
7.54
7.60
7.58
7.62
7.71
7.81
Temp,
%
o
C
Moisture
32.5
30.6
27.9
28.9
30.9
31.4
33.0
30.3
96.22
96.40
96.58
96.54
96.48
96.41
96.31
%
TS
3.78
3.60
3.42
3.46
3.52
3.59
3.69
47.64
45.42
43.95
43.20
44.56
45.97
46.13
52.36
54.58
56.05
56.80
55.44
54.03
53.87
39
12
13
14
15
16
17
18
19
20
21
22
24
25
26
27
28
29
31
7.82
7.79
7.82
7.82
7.81
7.86
7.80
7.87
7.83
7.84
7.89
7.84
7.90
7.93
7.88
7.86
7.87
7.86
30.9
31.7
31.0
32.7
32.8
33.0
35.1
33.4
35.1
34.2
32.2
33.7
31.2
29.6
32.8
32.0
32.7
32.2
96.61
96.26
96.26
96.56
96.32
96.01
96.50
96.86
96.58
96.80
96.27
96.63
96.16
96.48
96.34
97.05
96.02
3.39
3.74
3.74
3.44
3.68
3.99
3.50
3.14
3.42
3.20
3.73
3.37
3.84
3.52
3.66
2.95
3.98
41.36
49.01
44.44
40.29
47.71
44.38
40.83
39.50
42.47
45.72
39.68
43.92
46.77
40.41
44.24
45.83
43.13
58.64
50.99
55.56
59.71
52.29
55.62
59.17
60.50
57.53
54.28
60.32
56.08
53.23
59.59
55.76
54.17
56.87
28864
29318
27000
32526
31275
31900
31665
32903
31874
29259
29832
29499
30415
31040
29166
28124
30624
56153
49615
51923
53846
46538
45769
51923
48846
44615
44230
45000
56538
41923
41923
38077
45384
53077
287.60
291.00
368.40
291.00
297.92
309.68
344.96
344.96
306.46
-
Total
COD
mg/l
S2mg/l
Date
pH
Temp,
%
o
C
Moisture
%
TS
Composition of
solid matter
% VS
% FS
Total
Alkalinity
mg/l
01
03
7.64
7.67
31.8
30.8
96.46
96.05
3.54
3.95
42.61
46.99
57.39
53.01
28637
-
41153
-
04
7.72
28.0
96.02
3.98
42.98
57.02
28182
39615
05
7.67
29.2
96.15
3.85
42.63
57.37
26546
31077
06
7.73
30.6
96.50
3.50
45.41
54.59
30000
58462
08
7.71
31.8
96.52
3.48
44.31
55.69
30364
67692
10
7.72
33.0
96.51
3.49
47.14
52.86
26818
-
11
7.81
30.7
96.21
3.79
45.59
54.41
29091
48615
12
7.82
30.8
96.94
3.06
43.14
56.86
28409
51153
13
7.80
31.9
96.42
3.58
43.46
56.54
30000
47692
14
7.82
31.2
96.57
3.43
46.87
53.13
26737
49615
15
16
17
18
7.81
7.82
7.85
7.79
32.7
32.8
33.4
35.1
96.88
96.72
96.73
3.12
3.28
3.27
42.84
45.71
42.16
57.16
54.29
57.84
31066
29607
30858
51538
40769
46153
19
7.88
33.3
96.50
3.50
42.60
57.40
31457
44615
343.4
4
201.9
2
206.0
0
284.9
1
328.0
0
269.0
0
269.0
0
255.2
0
280.0
0
339.6
0
248.0
0
282.2
4
40
20
7.81
34.7
96.96
3.04
40.61
59.39
29571
43462
21
7.86
34.3
96.92
3.08
43.74
56.26
29582
40769
22
24
25
26
7.87
7.85
7.91
7.93
33.0
33.2
31.0
29.9
96.75
96.31
96.80
96.41
3.25
3.69
3.20
3.59
48.89
41.40
45.88
46.83
51.11
58.60
54.12
53.17
28738
28499
29499
29999
50000
55769
47308
46154
27
28
29
31
7.86
7.81
7.85
7.87
32.6
34.3
32.7
32.2
96.77
96.46
96.70
96.39
3.23
3.54
3.30
3.61
41.22
43.75
45.04
40.91
58.78
56.25
54.96
59.09
30624
28124
30207
28769
47307
35769
42307
35769
344.9
6
356.7
2
337.1
2
270.8
9
-
41
Temp.
%
o
C
Moisture
%
TS
Composition of
solid matter
% VS
% FS
Total
Alkalinity
mg/l
S2mg/l
Date
pH
Total
COD
mg/l
01
03
04
7.64
7.69
7.73
31.8
30.8
27.8
96.61
96.62
96.49
3.39
3.38
3.51
43.76
47.50
45.25
56.24
52.50
54.75
28637
26182
42692
50000
05
7.72
29.2
96.22
3.78
43.68
56.32
27273
26154
06
7.72
30.5
96.72
3.28
43.77
56.23
29455
41846
08
7.68
31.7
96.41
3.59
46.88
53.12
29818
40923
10
7.75
32.9
96.67
3.33
43.29
56.71
26818
-
11
7.81
30.7
96.42
3.58
44.79
55.21
28000
43385
12
7.81
30.7
96.72
3.28
43.68
56.32
28637
59615
13
7.81
31.9
96.40
3.60
48.54
51.46
29091
51153
14
7.82
31.3
96.67
3.33
47.46
52.54
26909
46538
15
16
17
18
19
7.82
7.82
7.84
7.80
7.86
32.9
33.1
33.4
35.3
33.0
96.80
96.52
96.58
96.63
3.20
3.48
3.42
3.37
42.37
46.24
43.90
41.39
57.63
53.76
56.10
58.61
31275
30232
31275
31040
50769
49230
43461
44230
20
7.80
34.9
97.02
2.98
41.20
58.80
29675
43077
21
7.84
34.4
96.61
3.39
50.80
49.20
30207
45000
22
24
25
26
7.86
7.84
7.91
7.94
33.1
33.5
31.2
29.8
97.02
96.93
96.62
96.45
2.98
3.07
3.38
3.55
47.29
43.87
46.72
46.90
52.71
56.13
53.28
53.10
27697
28832
29999
30207
42692
43461
53077
43077
27
28
29
31
7.87
7.85
7.87
7.87
32.5
34.1
32.2
31.9
96.81
96.71
96.20
96.62
3.19
3.29
3.80
3.38
42.00
40.14
44.30
44.65
58.00
59.86
55.70
55.35
29999
27082
29790
28124
41153
29615
36538
37308
307.8
7
292.0
0
249.3
4
324.0
0
320.0
0
320.0
0
276.8
0
256.0
0
258.8
0
256.0
0
329.2
8
333.2
0
309.6
8
314.4
6
-
II. GENERATION OF BIOGAS
Date
01
02
Volume, m3/d
54.75
30.00
Composition
% CO2
-
% H2 S
-
42
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
35.25
21.75
35.36
36.25
33.65
52.10
40.61
42.36
42.00
45.00
45.50
46.50
50.00
51.00
50.25
56.90
55.00
59.00
62.70
44.50
60.00
52.75
54.65
52.75
51.25
53.30
52.95
48.80
60.25
-
-
43
OPERATIONAL DATA
Period: 01 to 31 August 2000
I. FEED MATERIAL
1. Fleshing
Date
Weight, tonnes
03
08
09
26
% Moisture
0.80
1.53
0.50
1.00
70.80
61.15
71.99
83.24
% TS
29.20
38.85
28.01
16.76
% VS
% FS
64.67
35.33
90.62
9.38
72.03
27.97
70.20
29.80
2. Primary sludge
DATE
01
03
08
09
11
14
16
18
21
23
25
26
30
Volume, m3
2.0
1.0
1.0
0.5
2.0
2.0
2.0
2.0
2.0
2.0
2.0
1.0
2.0
% Moisture
96.71
96.56
97.19
93.66
93.83
96.84
95.77
97.81
97.54
94.60
95.42
95.43
95.83
% TS
3.29
3.44
2.81
6.34
6.17
3.16
4.23
2.19
2.46
5.40
4.58
4.57
4.17
% VS
43.25
36.75
36.66
41.79
41.17
37.79
39.75
24.25
32.46
41.32
37.23
32.90
33.21
% FS
56.75
63.25
63.34
58.21
58.83
62.21
60.25
75.75
67.54
58.68
62.77
67.10
66.79
DATE
01
03
08
09
11
14
16
18
21
23
25
26
30
Volume,
m3
2.0
1.5
3.0
1.2
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
pH
7.84
11.69
9.11
9.12
7.62
7.63
7.69
8.16
8.24
8.21
8.03
11.61
8.12
%
Moisture
96.71
85.79
80.55
77.02
93.83
96.84
95.77
97.81
97.54
94.60
95.42
87.21
95.83
% TS
3.29
14.21
19.45
22.98
6.17
3.16
4.23
2.19
2.46
5.40
4.58
12.79
4.17
Composition of solid matters
% VS
% FS
43.25
56.75
59.00
41.00
81.74
18.26
80.23
19.77
41.17
58.83
37.79
62.21
39.75
60.25
24.25
75.75
32.46
67.54
41.32
58.68
37.23
62.77
72.65
27.35
33.21
66.79
44
II. DRAIN MATERIAL
Date
01
03
08
09
11
14
16
18
21
23
25
26
30
Volume, m3
2.0
1.5
3.0
1.2
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
pH
7.78
7.87
7.89
7.85
8.05
7.83
7.85
7.93
8.00
7.97
7.92
8.07
8.02
% Moisture
94.42
94.34
93.51
93.93
94.03
94.97
96.93
96.14
93.95
95.10
95.50
96.83
94.01
% TS
5.58
5.66
6.49
6.07
5.97
5.03
3.07
3.86
6.05
4.90
4.50
3.17
5.99
% VS
43.15
42.85
37.92
37.22
37.98
38.14
40.96
40.58
36.24
38.78
37.92
40.30
39.87
% FS
56.85
57.15
62.08
62.78
62.02
61.86
59.04
59.42
63.76
61.22
62.08
59.70
60.13
Date
01
02
03
04
05
07
08
09
11
12
14
15
16
17
18
19
21
22
23
24
25
26
28
29
30
pH
7.86
7.85
7.84
7.89
7.87
7.88
7.87
7.88
7.74
7.73
7.80
7.81
7.83
7.83
7.87
7.88
7.89
7.98
7.94
7.92
7.93
7.92
7.95
7.91
8.00
Temp.
o
C
%
Moisture
33.7
32.4
32.5
33.5
33.0
30.3
31.1
2.94
33.1
32.6
30.7
30.5
31.9
31.6
30.0
29.8
30.2
27.1
28.4
29.4
30.5
30.5
32.0
31.1
30.2
96.38
96.36
95.51
95.97
96.06
95.91
94.75
96.97
95.67
95.07
96.49
95.98
96.15
96.77
95.99
96.26
96.44
96.50
95.36
96.51
96.34
94.13
96.70
96.79
%
TS
3.62
3.64
4.49
4.03
3.94
4.09
5.25
3.03
4.33
4.93
3.51
4.02
3.85
3.23
4.01
3.74
3.56
3.50
4.64
3.49
3.66
5.87
3.30
3.21
Composition of
solid matters
% VS
% FS
42.75
44.95
45.73
46.66
42.91
41.45
50.35
41.35
45.33
40.25
44.84
44.09
42.17
45.75
44.91
39.30
44.92
43.59
41.68
44.14
39.40
58.18
43.00
42.08
57.25
55.05
54.27
53.34
57.09
58.55
49.65
58.65
54.67
59.75
55.16
55.91
57.83
54.25
55.09
60.70
55.08
56.41
58.32
55.86
60.60
41.82
57.00
57.92
Total
Alkalinity
mg/l
32070
31287
34580
34840
29380
30030
31980
29945
29945
32065
27560
30210
27560
26765
S2mg/l
225.72
292.00
269.00
312.00
265.00
278.00
295.00
-
45
31
7.90
32.1
96.67 3.33
Date
01
02
03
04
05
07
08
09
11
12
14
15
16
17
18
19
21
22
23
24
25
26
28
29
30
31
pH
7.85
7.87
7.85
7.88
7.87
7.86
7.85
7.87
7.75
7.75
7.81
7.81
7.81
7.83
7.84
7.89
7.90
7.99
7.94
7.93
7.93
7.94
7.94
7.96
7.99
8.00
Temp.
o
C
%
Moisture
% TS
33.4
32.2
32.8
33.6
33.1
30.8
31.0
29.6
33.0
32.0
30.8
30.1
32.0
31.6
30.0
30.1
30.4
27.3
28.7
29.6
30.8
30.5
32.0
30.8
31.1
31.7
96.24
96.54
96.24
96.19
96.38
96.23
95.68
97.16
96.06
95.72
96.75
96.20
96.62
96.99
96.50
96.82
96.70
96.68
96.84
96.63
97.24
96.82
96.61
3.76
3.46
3.76
3.81
3.62
3.77
4.32
2.84
3.94
4.28
3.25
3.80
3.38
3.01
3.50
3.18
3.30
3.32
3.16
3.37
2.76
3.18
3.39
44.74
55.26
Composition of
solid matters
% VS
% FS
28620
Total
Alkalinity
mg/l
42.61
43.56
43.32
48.66
44.44
41.81
41.62
46.91
40.95
44.39
45.12
43.14
44.28
42.82
42.81
42.33
43.23
40.36
38.33
41.52
38.32
39.97
57.39
56.44
56.68
51.34
55.56
58.19
58.38
53.09
59.05
55.61
54.88
56.86
55.72
57.18
57.19
57.67
56.77
59.64
61.67
58.48
61.68
60.03
31862
30821
33020
33020
29900
29640
32760
29415
30210
31270
27692
31005
27825
26765
29836
% VS
% FS
Total
Alkalinity
mg/l
29988
29779
29640
30160
29900
240.00
S2mg/l
249.44
237.00
249.00
249.00
229.00
246.00
240.00
261.00
Date
pH
01
02
03
04
05
07
08
09
11
12
14
15
16
7.85
7.87
7.85
7.85
7.84
7.89
7.85
7.90
7.82
7.87
7.91
7.93
7.92
Temp.
o
C
%
Moisture
33.4
32.3
33.0
34.1
33.0
30.5
31.6
29.0
32.7
32.0
30.8
29.8
31.6
96.34
96.44
96.60
96.96
97.02
96.77
96.90
96.75
96.52
96.76
96.20
% TS
3.66
3.56
3.40
3.04
2.98
3.23
3.10
3.25
3.48
3.24
3.80
44.99
43.35
44.09
46.77
44.43
40.13
40.91
39.31
38.34
39.67
45.12
55.01
56.65
55.91
53.23
55.57
59.87
59.09
60.69
61.66
60.33
54.88
S2mg/l
249.44
281.00
249.00
46
17
18
19
21
22
23
24
25
26
28
29
30
31
7.92
7.93
7.94
7.96
8.06
7.98
7.97
7.95
7.96
7.96
7.97
7.97
8.01
31.2
30.0
29.7
30.5
27.4
28.6
29.7
30.4
30.4
31.8
31.0
30.8
31.8
96.99
3.09
2.97
2.89
3.00
2.60
2.71
2.80
3.37
2.80
3.46
3.00
3.01
41.62
41.22
41.35
40.33
41.75
42.84
42.21
39.50
41.15
39.32
40.47
58.38
58.78
58.65
59.67
58.25
57.16
57.79
60.50
58.85
60.68
59.53
27820
27820
27692
28232
28355
27030
28355
27957
27825
28350
229.00
237.00
231.00
210.00
278.00
Date
01
02
03
04
05
07
08
09
11
12
14
15
16
17
18
19
21
22
23
24
25
26
28
29
30
31
pH
7.87
7.86
7.85
7.85
7.83
7.86
7.84
7.91
7.81
7.88
7.92
7.93
7.93
7.92
7.93
7.97
7.96
8.05
7.97
7.98
7.97
7.96
7.95
7.98
7.99
8.00
Temp,
o
C
33.2
32.2
32.9
33.4
33.2
30.5
30.8
29.3
32.7
31.8
30.8
29.9
31.8
31.2
29.9
29.9
30.1
27.4
28.5
29.4
30.7
30.2
31.5
30.6
30.8
30.0
%
Moisture
96.41
96.16
95.60
96.99
96.81
96.85
97.11
96.82
96.78
96.69
96.79
95.98
96.81
96.98
97.17
97.0
97.2
96.69
97.19
96.88
96.66
96.99
97.10
96.92
% TS
% VS
% FS
3.59
3.84
4.40
3.01
3.19
3.15
2.89
3.18
3.22
3.31
3.21
4.02
3.19
3.02
2.83
3.0
2.8
3.31
2.81
3.12
3.34
3.01
2.90
3.08
41.62
42.6
41.21
46.24
44.03
44.16
42.96
40.04
38.22
41.28
41.57
44.09
39.35
41.67
41.25
41.96
43.66
43.80
40.18
39.00
40.89
40.46
41.00
39.46
58.38
57.4
58.79
53.76
55.97
55.84
57.04
59.96
61.78
58.72
58.43
55.91
60.65
58.33
58.75
58.04
56.34
56.20
59.82
61.00
59.11
59.54
59.00
60.54
Total
Alkalinity,
mg/l
30196
29363
29900
29640
29380
28340
27040
28090
28355
27560
26765
27825
28355
28220
27000
S2-,
mg/l
237.58
241
269
233
265
210
253
303
47
Date
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Volume, m3/d
60.50
59.75
54.50
63.75
50.75
63.75
52.00
55.25
56.50
60.00
58.00
58.00
72.00
60.00
59.27
61.92
55.00
51.00
51.20
57.00
48.00
43.00
43.50
45.00
50.00
47.75
53.00
48.00
47.00
42.00
45.00
Composition
% CO2
% H2 S
-
48
OPERATIONAL DATA
Period: 01 to 30 September 2000
I. FEED MATERIAL
1. Fleshing
DATE
06
07
08
09
13
14
15
16
18
21
22
26
28
29
30
Weight,
tonnes
1.00
1.50
1.00
1.00
1.25
1.30
1.00
3.00
1.00
1.60
1.71
2.00
2.10
2.00
3.00
% Moisture
80.43
87.12
85.53
83.56
83.19
78.99
90.40
83.68
84.49
83.20
82.73
% TS
19.57
12.88
14.47
16.44
16.81
21.01
9.60
16.32
15.51
16.80
17.27
% VS
% FS
71.17
28.83
64.58
35.42
62.81
37.19
62.00
38.00
72.36
27.64
68.15
31.85
60.63
39.37
59.94
40.06
62.16
37.84
56.14
43.86
2. Primary sludge
DATE
01
04
06
07
08
09
11
13
14
15
16
18
21
22
26
28
29
30
Volume, m3
2.0
2.0
1.0
1.0
1.0
1.0
1.0
0.7
1.0
2.5
1.0
1.1
1.5
1.7
1.7
1.3
2.3
% Moisture
96.49
93.83
96.67
93.45
97.13
96.87
95.63
93.4
94.62
94.61
96.36
94.79
97.84
97.35
% TS
3.51
6.17
3.33
6.55
2.87
3.13
4.37
6.6
5.38
5.39
3.64
5.21
2.16
2.65
% VS
% FS
41.58
58.42
43.26
56.74
39.06
60.94
45.77
54.23
40.09
59.91
44.31
55.69
48.11
51.89
49.72
50.28
39.39
60.61
26.63
73.37
44.79
55.21
29.15
70.85
34.07
65.93
49
DATE
01
04
06
07
08
09
11
13
14
15
16
17
18
19
21
22
23
26
28
29
30
Volume, m3
1.0
2.0
1.0
3.0
2.0
2.0
1.0
2.0
2.0
2.0
3.0
2.0
2.5
3.0
3.0
2.5
1.5
3.0
3.0
3.0
2.5
pH
7.46
7.71
9.26
9.57
9.48
8.09
10.81
11.42
11.20
10.60
11.12
10.94
9.81
11.64
10.94
10.09
11.80
11.79
11.98
11.96
% Moisture
96.49
93.83
91.79
91.77
92.04
91.09
95.52
83.88
89.5
91.35
91.02
90.85
90.71
95.59
91.89
92.74
92.61
91.06
92.44
93.01
92.71
% TS
3.51
6.17
8.21
8.23
7.96
8.91
4.48
16.12
10.50
8.65
8.98
9.15
9.29
4.41
8.11
7.26
7.39
8.94
7.56
6.99
7.29
% VS
% FS
41.58
43.26
54.69
56.32
63.06
58.50
39.66
57.16
58.50
59.50
61.56
60.11
57.90
45.68
58.69
59.06
59.65
52.95
59.35
52.63
55.48
48.42
56.74
45.31
43.68
36.94
41.50
60.34
42.84
41.50
40.50
38.44
39.89
42.10
54.32
41.31
40.94
40.35
47.05
40.65
47.37
44.52
DATE
01
04
06
07
08
09
11
13
14
15
16
17
18
19
21
22
23
26
28
29
Volume, m3
2.0
2.0
1.0
3.0
2.0
2.0
1.0
2.0
2.0
2.0
3.0
2.0
2.5
3.0
3.0
2.5
1.5
3.0
3.0
3.0
PH
7.97
7.95
8.00
8.00
8.08
8.13
7.96
7.96
8.03
8.00
8.09
8.04
8.05
7.75
7.65
% Moisture
95.29
94.47
96.67
96.34
95.09
95.85
96.64
93.92
94.29
95.13
94.19
95.88
96.35
96.21
93.51
94.61
94.02
94.88
93.68
95.10
% TS
4.71
5.53
3.33
3.66
4.91
4.15
3.36
6.08
5.71
4.87
5.81
4.12
3.65
3.79
6.49
5.39
5.98
5.12
6.32
4.90
Composition of drained matters
% VS
% FS
38.92
61.08
37.46
62.54
39.03
60.97
35.23
64.77
39.29
60.71
37.80
62.20
40.28
59.72
38.19
61.81
37.53
62.47
37.80
62.20
36.99
63.01
37.30
62.70
38.35
61.65
43.63
56.37
41.02
58.98
39.39
60.61
37.84
62.16
36.45
63.55
40.77
59.23
39.85
60.15
50
30
2.5
8.11
94.45
5.55
47.47
52.53
Date
pH
01
02
04
05
06
07
08
09
11
12
13
14
16
18
19
20
21
22
23
25
26
27
28
29
30
7.94
7.96
7.98
7.98
7.95
8.00
7.89
7.84
7.78
7.86
7.98
7.98
7.88
7.84
7.81
7.82
7.79
7.94
7.97
7.91
7.97
8.00
7.96
7.84
8.05
Temp.
o
C
%
Moisture
% TS
32.9
32.5
32.4
31.6
33.3
33.0
30.6
31.5
30.2
32.7
32.2
31.2
32.0
32.0
30.8
30.1
29.1
29.4
28.2
29.1
31.1
26.2
96.74
96.70
96.30
96.17
95.83
95.33
94.22
94.43
95.88
95.58
95.16
94.26
95.39
94.63
93.69
95.76
96.19
95.24
94.79
96.28
96.91
95.62
93.65
3.26
3.30
3.70
3.83
4.17
4.67
5.78
5.57
4.12
4.42
4.84
5.74
4.61
5.37
6.31
4.24
3.81
4.76
5.21
3.72
3.09
4.38
6.35
matters
% VS
% FS
37.89
62.11
43.69
56.31
41.50
58.50
40.96
59.04
45.99
54.01
44.32
55.68
49.06
50.94
47.44
52.56
43.31
56.69
40.27
59.73
45.26
54.74
44.90
55.10
41.16
58.84
42.35
57.65
44.92
55.08
40.82
59.18
43.03
56.97
37.84
62.16
39.01
60.99
42.76
57.24
46.30
53.70
42.86
57.14
Total
Alkalinity
mg/l
30510
30510
32620
32310
35370
37537
40818
32156
37012
39375
37537
37012
30450
33600
36487
34125
32010
38316
S2mg/l
matters
% VS
% FS
Total
Alkalinity
mg/l
S2mg/l
123
293
307
324
-
Date
pH
01
02
04
05
06
07
08
09
11
12
13
14
7.98
7.96
7.98
8.00
7.95
8.03
7.95
7.98
7.93
7.90
7.99
7.99
Temp.
o
C
%
Moisture
% TS
33.0
32.6
33.0
32.1
33.5
32.6
33.1
31.4
32.5
32.8
-
96.96
97.02
96.36
96.33
96.18
96.40
96.69
96.43
-
3.04
2.98
3.64
3.67
3.82
3.60
3.31
3.57
-
38.70
39.27
39.67
43.38
42.56
43.95
41.65
41.69
-
61.30
60.73
60.33
56.62
57.44
56.05
58.35
58.31
-
30780
30240
28350
29970
30510
31762
33862
27825
-
65
251
-
51
16
18
19
20
21
22
23
25
26
27
28
29
30
7.93
7.93
7.96
7.91
7.92
7.95
7.96
7.95
8.01
8.06
7.99
7.95
8.05
33.1
31.3
32.1
32.0
30.8
30.9
29.0
29.7
28.3
29.9
31.4
26.2
96.34
96.06
94.80
96.99
96.62
96.43
96.88
96.48
96.39
3.66
3.94
5.20
3.01
3.38
3.57
3.12
3.52
3.61
41.69
40.92
40.67
47.23
38.05
40.10
39.20
43.64
39.68
58.31
59.08
59.33
52.77
61.95
59.90
60.80
56.36
60.32
32550
34650
34387
35437
29137
31237
32025
30797
30555
341
350
-
Date
pH
01
02
04
05
06
07
08
09
11
12
13
14
16
18
19
20
21
22
23
25
26
27
28
29
30
8.01
7.99
8.01
8.03
8.01
8.04
7.99
8.02
8.02
7.97
8.05
8.06
7.93
8.01
8.04
8.10
8.03
8.00
8.10
8.00
8.06
8.06
8.00
7.96
8.11
Temp.
o
C
%
Moisture
32.7
32.4
32.2
31.8
33.2
32.5
33.2
31.4
32.0
32.9
32.8
30.4
31.3
31.7
30.5
30.6
30.8
29.4
28.5
29.8
31.4
26.2
96.93
97.06
96.86
97.16
96.99
96.77
96.79
96.56
96.38
96.53
95.20
96.28
97.00
97.04
97.10
97.00
% TS
3.07
2.94
3.14
2.84
3.01
3.23
3.21
3.44
3.62
3.47
4.80
3.72
3.00
2.96
2.90
3.00
matter
% VS
% FS
35.85
37.72
38.80
42.63
39.98
42.46
39.55
39.06
36.96
37.46
44.24
38.05
37.33
38.47
40.07
33.58
64.15
62.28
61.20
57.37
60.02
57.54
60.45
60.94
63.04
62.54
55.76
61.95
62.67
61.53
59.93
66.42
Total
Alkalinity
mg/l
29970
28350
27000
27810
27810
26775
28087
26775
27562
28087
26512
27300
28350
26512
28350
26675
25220
S2mg/l
90
222
312
337
-
Date
pH
01
8.00
Temp.
o
C
%
Moisture
32.7
96.93
% TS
3.07
matters
% VS
% FS
35.85
64.15
Total
Alkalinity
mg/l
29700
S2mg/l
-
52
02
04
05
06
07
08
09
11
12
13
14
16
18
19
20
21
22
23
25
26
27
28
29
30
7.99
8.01
8.04
8.01
8.05
7.99
8.03
8.02
7.98
8.06
8.06
7.93
8.01
8.04
7.99
8.01
8.02
8.00
8.00
8.04
8.08
8.00
7.96
8.10
32.4
32.5
31.8
33.2
32.5
33.2
31.5
32.4
32.9
32.7
30.9
31.5
31.8
30.3
30.4
30.5
29.3
28.2
29.1
31.2
26.0
97.03
96.94
97.22
97.15
96.88
96.67
96.85
96.90
96.55
97.09
96.76
94.54
96.93
95.70
97.14
96.09
96.21
96.25
97.15
97.21
97.14
97.58
2.97
3.06
2.78
2.85
3.12
3.33
3.15
3.10
3.45
2.91
3.24
5.46
3.07
4.30
2.86
3.91
3.79
3.75
2.85
2.79
2.86
2.42
37.80
39.00
38.03
42.14
39.22
41.27
40.09
38.84
36.39
37.18
38.58
42.36
39.57
37.40
44.15
36.10
25.50
38.23
39.55
27.62
62.20
61.00
61.97
57.86
60.78
58.73
59.91
61.16
63.61
62.82
61.42
57.64
60.43
62.60
55.85
63.90
74.50
61.77
60.45
72.38
27540
27270
27270
27540
25462
26775
26643
27037
27562
26200
27562
28612
26250
31237
26512
25947
25462
166
209
-
Date
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
Volume, m3/d
43.00
38.50
42.00
35.00
35.00
38.00
38.00
43.50
41.85
45.00
45.00
44.00
52.00
59.00
40.00
39.50
50.25
48.00
45.00
55.00
47.00
46.60
41.67
Composition
% CO2
-
% H2 S
-
53
24
25
26
27
28
29
30
50.20
43.50
44.98
35.00
34.00
40.00
45.00
-
-
54
PDU/4 – OPERATIONAL DATA
Period: 01 to 31 October 2000
I. FEED MATERIAL
1. Fleshing
Date
Weight, tonnes
05
10
11
12
13
14
16
17
18
19
% Moisture
4.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
1.8
84.50
83.20
84.77
83.28
80.83
87.79
84.27
82.50
82.29
80.79
% TS
15.50
16.80
15.23
16.72
19.17
12.21
15.73
17.50
17.71
19.21
% VS
% FS
69.96
30.04
64.67
35.33
58.32
41.68
74.42
25.58
58.39
41.61
68.00
32.00
48.22
51.78
55.01
44.99
56.69
43.31
53.64
46.36
2. Primary sludge
DATE
Volume, m3
05
10
11
12
13
14
16
17
18
19
% Moisture
2.7
1.5
1.5
1.5
1.5
1.4
1.6
1.6
1.5
1.5
97.28
96.60
96.20
98.49
95.28
94.88
97.60
97.30
95.44
96.84
% TS
2.72
3.40
3.80
1.51
4.72
5.12
2.40
2.70
4.56
3.16
% VS
% FS
41.76
58.24
36.38
63.62
36.75
63.25
15.59
84.41
37.13
62.87
48.22
51.78
27.00
73.00
27.04
72.96
36.43
63.57
27.85
72.15
DATE
02
03
05
06
10
11
12
13
14
16
17
18
19
Volume,
m3
2.5
1.0
3.0
2.0
3.0
2.8
3.0
3.0
3.0
3.0
3.0
3.0
2.0
pH
11.76
10.45
11.72
11.83
11.86
11.78
11.83
11.78
11.41
10.01
11.45
10.50
11.35
%
Moisture
94.62
93.48
91.30
92.86
91.74
92.45
92.29
92.00
91.32
89.67
90.42
90.43
91.10
% TS
5.38
6.52
8.70
7.14
8.26
7.55
7.71
8.00
8.68
10.33
9.58
9.57
8.90
% VS
% FS
54.94
45.06
54.86
45.14
63.15
36.85
56.19
43.81
48.37
51.63
50.12
49.88
53.20
46.80
49.84
50.16
45.10
54.90
40.28
59.72
67.02
32.98
48.00
52.00
47.25
52.75
55
DATE
Drain, m3
02
03
05
06
10
11
12
13
14
16
17
18
19
PH
2.5
1.0
3.0
2.0
3.0
2.8
3.0
3.0
3.0
3.0
3.0
3.0
2.0
% Moisture
8.07
8.00
8.03
8.01
8.07
8.06
8.33
8.10
8.08
8.09
8.09
8.07
8.09
94.17
96.48
94.72
96.09
95.30
94.33
93.89
94.87
93.88
92.96
95.50
93.38
97.05
% TS
5.83
3.52
5.28
3.91
4.70
5.67
6.11
5.13
6.12
7.04
4.50
6.62
2.95
% VS
% FS
35.96
64.04
33.87
66.13
36.95
63.05
47.29
52.71
35.83
64.17
35.87
64.13
30.91
69.09
23.58
76.42
32.66
67.34
29.75
70.25
30.60
69.40
32.14
67.86
33.70
66.30
Date
02
03
04
05
06
07
09
10
11
13
14
16
17
18
19
20
21
23
24
25
26
27
30
31
pH
7.92
7.92
7.90
7.93
7.94
7.71
7.88
7.99
7.97
7.94
7.78
7.84
7.75
7.84
7.88
7.80
7.80
7.88
8.04
7.94
7.94
7.96
8.05
7.95
Temp.
o
C
%
Moisture
25.3
29.2
30.1
29.2
28.0
28.6
30.2
26.3
29.8
30.2
28.7
95.47
95.86
95.83
95.42
95.06
95.15
95.61
94.63
96.40
96.50
95.30
95.60
95.10
94.26
94.13
94.72
93.03
95.29
94.90
94.90
93.18
93.18
93.84
91.68
%
TS
4.53
4.14
4.17
4.58
4.94
4.85
4.39
5.37
3.60
3.50
4.70
4.40
4.90
5.74
5.87
5.28
6.97
4.71
5.10
5.10
6.82
6.82
6.16
8.32
Composition of
solid matters
% VS
% FS
37.83
62.17
39.30
60.70
38.17
61.83
37.40
62.60
41.59
58.41
36.14
63.86
36.60
63.40
34.95
65.05
39.33
60.67
39.77
60.23
34.04
65.96
34.04
65.96
42.48
57.52
33.60
66.40
39.55
60.45
38.50
61.50
38.26
61.74
32.26
67.74
44.44
55.56
38.21
61.79
42.21
57.79
31.37
68.63
32.82
67.18
Total
Alkalinity
mg/l
38072
37102
38750
-
S2mg/l
-
56
Date
02
03
04
05
06
07
09
10
11
13
14
16
17
18
19
20
21
23
24
25
26
27
30
31
pH
7.92
7.94
7.91
7.92
8.02
7.98
7.91
8.02
8.01
8.02
7.95
7.86
7.97
7.95
8.00
7.91
7.94
7.90
7.95
7.97
7.95
7.98
8.07
8.04
Temp.
o
C
%
Moisture
28.2
29.1
30.8
29.5
28.1
28.6
30.2
27.8
30.5
31.2
95.47
95.86
95.83
95.42
95.06
95.15
95.61
94.63
96.40
96.52
95.80
95.50
95.40
95.26
94.84
95.06
95.12
96.20
95.50
95.90
95.96
95.83
95.79
96.41
%
TS
4.53
4.14
4.17
4.58
4.94
4.85
4.39
5.37
3.60
3.48
4.20
4.50
4.60
4.74
5.16
4.94
4.88
3.80
4.50
4.10
4.04
4.17
4.21
3.59
Composition of
solid matters
% VS
% FS
38.78
37.56
40.50
37.40
35.15
37.87
38.08
38.69
36.83
36.07
37.46
32.10
32.57
33.00
35.27
34.76
32.80
35.96
38.92
29.29
35.65
29.41
32.40
61.22
62.44
59.5
62.6
64.85
62.13
61.92
61.31
63.17
63.93
62.54
67.90
67.43
67.00
64.73
65.24
67.20
64.04
61.08
70.71
64.35
70.59
67.60
Total
Alkalinity
mg/l
S2mg/l
34192
37502
36500
-
-
Date
02
03
04
05
06
07
09
10
11
13
14
16
17
18
19
pH
8.02
8.02
8.00
8.00
8.06
8.05
7.90
8.00
7.99
8.05
8.06
8.02
8.07
8.03
8.08
Temp,
o
C
%
Moisture
28.4
29.1
30.0
29.4
28.3
28.5
29.9
30.1
30.1
30.7
-
96.57
96.96
97.33
96.92
96.93
97.21
96.63
97.00
96.02
96.20
95.70
95.90
96.00
96.87
%
TS
3.43
3.04
2.67
3.08
3.07
2.79
3.37
3.00
3.98
3.80
4.30
4.10
4.00
3.13
Composition of
solid matters
% VS
% FS
38.70
40.81
38.84
37.10
32.90
36.06
35.60
35.49
40.37
30.39
29.06
30.55
29.83
32.25
61.30
59.19
61.16
62.90
67.10
63.94
64.40
64.51
59.63
69.61
70.94
69.45
70.17
67.75
Total
Alkalinity,
mg/l
30072
27887
31500
-
S2mg/l
-
57
20
21
23
24
25
26
27
30
31
8.01
8.07
8.02
8.06
8.03
8.00
8.02
8.08
8.05
29.2
95.90
96.00
96.00
96.20
95.70
95.92
96.32
96.55
96.53
4.10
4.00
4.00
3.80
4.30
4.08
3.68
3.45
3.47
31.74
32.84
30.02
37.55
37.64
28.20
26.72
31.04
33.64
68.26
67.16
69.98
62.45
62.36
71.8
73.28
68.96
66.36
-
-
Date
02
03
04
05
06
07
09
10
11
13
14
16
17
18
19
20
21
23
24
25
26
27
30
31
pH
8.05
8.02
8.00
7.99
8.10
8.04
7.98
7.99
8.01
8.05
8.05
8.03
8.07
8.02
8.09
8.02
8.07
8.02
8.04
8.05
8.01
8.02
8.09
8.06
Temp.
o
C
%
Moisture
28.4
29.0
30.2
29.6
28.1
28.1
29.3
30.1
24.7
30.5
30.2
97.25
97.45
97.29
97.15
96.30
96.42
97.21
96.79
97.20
95.65
97.50
96.90
96.10
95.29
95.99
96.65
97.26
95.35
95.80
95.60
96.54
95.61
96.16
96.87
%
TS
2.75
2.55
2.71
2.85
3.70
3.58
2.79
3.21
2.80
4.35
2.50
3.10
3.90
4.71
4.01
3.35
2.74
4.65
4.20
4.40
3.46
4.39
3.84
3.13
Composition of
solid matters
% VS
% FS
38.64
36.14
40.18
34.00
38.33
32.85
35.76
36.86
36.45
34.00
35.52
30.07
30.71
28.40
31.60
32.17
33.84
29.37
29.41
29.01
26.61
26.44
30.80
34.51
Total
Alkalinity
mg/l
61.36
63.86
59.82
66.00
61.67
67.15
64.24
63.14
63.55
66.00
64.48
69.93
69.29
71.60
68.40
67.83
66.16
70.63
70.59
70.99
73.39
73.56
69.20
65.49
S2mg/l
27887
27645
31000
-
-
Date
01
02
03
04
05
06
07
08
Volume, m3/d
40.75
35.67
44.15
40.00
41.00
41.00
34.00
38.75
Composition
% CO2
-
% H2 S
-
58
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
39.00
33.00
35.00
34.00
38.00
39.00
42.00
45.00
43.00
44.00
44.50
44.50
37.50
37.50
38.00
41.00
39.00
37.00
34.10
34.50
32.01
27.50
28.25
-
-
59
OPERATIONAL DATA
Period: 01 to 30 November 2000
I. FEED MATERIAL
1. Fleshing
Date
Weight, tonnes
08
11
16
29
% Moisture
2.00
1.34
1.35
1.50
82.86
83.02
80.69
81.88
% TS
17.14
16.98
19.31
18.12
% VS
% FS
55.78
44.22
60.59
39.41
54.90
45.10
70.22
29.78
2. Primary sludge
DATE
Volume, m3
08
11
16
29
30
% Moisture
1.5
1.0
1.2
1.0
2.0
95.79
94.91
95.13
95.79
96.59
% TS
4.21
5.09
4.87
4.21
3.41
% VS
% FS
36.68
63.32
34.48
65.52
40.37
59.63
35.71
64.29
33.91
66.09
DATE
08
11
16
29
30
Volume
m3
3.0
2.0
2.0
2.0
2.0
pH
11.19
11.28
11.95
7.40
6.92
%
Moisture
90.31
90.12
89.80
87.64
94.88
% TS
% Moisture
% TS
9.69
9.88
10.20
12.36
5.12
% VS
% FS
50.60
49.40
51.91
48.09
51.10
48.90
72.31
27.69
57.25
42.75
DATE
04
08
11
16
29
30
Volume
m3
2.0
3.0
2.0
2.0
2.0
2.0
pH
8.10
8.24
8.13
8.18
8.13
97.28
93.22
93.86
93.90
94.19
2.72
6.78
6.14
6.10
5.81
% VS
% FS
30.87
69.13
33.40
66.60
32.90
67.10
44.88
55.12
34.01
65.99
60
Date
01
02
03
04
06
07
08
09
10
11
13
14
15
16
17
18
20
21
22
23
24
25
27
28
29
30
pH
8.03
8.04
8.09
8.01
8.01
8.02
8.00
8.00
8.09
8.02
8.04
8.01
7.97
8.02
8.07
8.02
8.04
8.06
8.07
8.02
8.13
8.09
8.09
8.1
8.09
8.1
Temp
o
C
27.7
29.6
29.5
31.1
30.7
27.6
29.5
28.2
29.0
29.0
26.7
27.8
26.9
25.6
24.0
28.5
25.5
24.5
25.7
26.9
20.0
25.0
25.7
20.9
24.6
20.8
%
Moisture
94.83
90.63
94.11
90.24
93.56
94.11
92.45
93.29
96.11
94.25
93.44
96.16
93.85
94.86
94.05
93.06
93.53
93.65
93.85
93.96
95.50
94.12
93.64
94.42
94.33
94.80
%
TS
5.17
9.37
5.89
9.76
6.44
5.89
7.55
6.71
3.89
5.75
6.56
3.84
6.15
5.14
5.95
6.94
6.47
6.35
6.15
6.04
4.50
5.88
6.36
5.58
5.67
5.20
Composition of
solid matters
% VS
% FS
32.40
29.14
31.61
32.46
34.35
32.99
33.00
29.97
30.79
31.18
32.42
30.71
35.35
32.76
34.85
32.68
30.49
37.85
33.10
33.16
30.48
31.80
34.47
30.18
30.08
35.72
67.60
70.86
68.39
67.54
65.65
67.01
67.00
70.03
69.21
68.82
67.58
69.29
64.65
67.24
65.15
67.32
69.51
62.15
66.90
66.84
69.52
68.20
65.53
69.82
69.92
64.28
Total
Alkalinity
mg/l
S2-mg/l
57575
49735
66687
52440
45600
49020
51870
40110
38640
41790
52275
54570
51510
45900
49980
48195
51232
52965
47025
52717
45540
-
Date
01
02
03
04
06
07
08
09
10
11
13
14
pH
8.03
8.06
8.08
8.05
8.04
8.08
8.06
8.09
8.11
8.06
8.07
8.06
Temp.
o
C
%
Moisture
30.6
29.7
29.6
26.2
26.0
21.7
29.5
29.8
27.5
29.1
28.7
28.0
96.74
96.72
95.99
96.45
95.70
96.83
96.73
96.47
96.62
96.36
95.85
96.85
%
TS
3.26
3.28
4.01
3.55
4.30
3.17
3.27
3.53
3.38
3.64
4.15
3.15
Composition of
solid matters
% VS
% FS
35.57
33.68
34.61
35.40
32.95
31.96
31.50
34.29
35.38
37.28
34.76
64.43
66.32
65.39
64.60
67.05
100.00
68.04
68.50
65.71
64.62
62.72
65.24
Total
Alkalinity
mg/l
42450
38710
43120
34770
32775
31350
36480
26250
S2mg/l
-
61
15
16
17
18
20
21
22
23
24
25
27
28
29
30
8.05
8.08
8.09
8.09
8.07
8.08
8.12
8.09
8.10
8.11
8.09
8.10
8.09
8.10
26.8
25.3
26.1
25.5
26.2
26.8
26.2
22.2
27.4
27.7
25.3
23.8
25.8
22.7
96.71
96.91
96.61
95.91
96.30
95.92
96.66
96.27
94.04
96.55
96.37
96.69
95.94
97.57
3.29
3.09
3.39
4.09
3.70
4.08
3.34
3.73
5.96
3.45
3.63
3.31
4.06
2.43
36.05
33.75
35.97
38.58
32.59
42.24
32.97
33.28
31.81
32.50
33.53
31.25
31.11
39.25
63.95
66.25
64.03
61.42
67.41
57.76
67.03
66.72
68.19
67.50
66.47
68.75
68.89
60.75
28770
22050
32640
35190
36210
34935
35445
35640
36135
34897
36877
33907
-
Date
01
02
03
04
06
07
08
09
10
11
13
14
15
16
17
18
20
21
22
23
24
25
27
28
29
30
pH
8.05
8.07
8.12
8.05
8.05
8.09
8.08
8.06
8.12
8.09
8.12
8.06
8.10
8.11
8.10
8.09
8.11
8.09
8.14
8.11
8.12
8.15
8.11
8.12
8.13
8.10
Temp.
o
C
%
Moisture
27.5
29.4
29.4
28.0
30.4
24.0
29.2
29.7
28.8
26.6
25.6
28.8
25.3
24.9
24.9
28.6
24.1
27.4
26.1
23.7
24.0
21.2
28.6
24.2
25.9
21.8
96.89
96.72
96.64
96.74
96.30
96.87
96.67
96.86
96.96
96.39
96.86
97.00
96.89
96.46
96.63
97.06
96.33
96.34
96.66
96.95
96.26
95.87
97.11
96.41
96.63
%
TS
3.11
3.28
3.36
3.26
3.70
3.13
3.33
3.14
3.04
3.61
3.14
3.00
3.11
3.54
3.37
2.94
3.67
3.66
3.34
3.05
3.74
4.13
2.89
3.59
3.37
Composition of
solid matters
% VS
% FS
35.62
32.56
32.64
35.38
31.97
32.56
33.63
30.68
30.57
33.71
36.8
33.11
32.92
32.75
31.42
30.52
37.22
29.94
32.27
29.26
31.58
31.69
32.40
31.52
43.88
64.38
67.44
67.36
64.62
68.03
67.44
66.37
69.32
69.43
66.29
63.20
66.89
67.08
67.25
68.58
69.48
62.78
70.06
67.73
70.74
68.42
68.31
67.60
68.48
56.12
Total
Alkalinity
mg/l
34548
33565
36995
37905
33630
35625
36195
26250
24360
22890
30345
34170
37995
35190
37485
37620
39105
31927
32422
30937
S2mg/l
-
62
Date
01
02
03
04
06
07
08
09
10
11
13
14
15
16
17
18
20
21
22
23
24
25
27
28
29
30
pH
8.05
8.07
8.10
8.07
8.04
8.09
8.08
8.07
8.11
8.09
8.11
8.06
8.09
8.11
8.11
8.10
8.10
8.09
8.13
8.12
8.12
8.13
8.12
8.14
8.14
8.13
Temp.
o
C
%
Moisture
28.5
29.2
29.6
30.2
28.5
23.4
27.6
29.7
26.7
28.8
25.1
28.5
24.3
23.7
23.9
24.8
25.3
27.3
24.8
19.2
25.5
27.4
28.2
24.4
23.2
24.8
96.81
96.86
96.82
95.84
96.21
96.83
96.76
96.48
96.86
96.69
96.69
94.06
97.00
97.12
96.54
96.75
96.38
96.31
96.30
97.26
96.48
96.83
95.65
97.00
96.89
96.69
%
TS
3.19
3.14
3.18
4.16
3.79
3.17
3.24
3.52
3.14
3.31
3.31
5.94
3.00
2.88
3.46
3.25
3.62
3.69
3.70
2.74
3.52
3.17
4.35
3.00
3.11
3.31
Composition of
solid matters
% VS
% FS
34.92
30.74
32.98
33.54
31.84
32.25
31.94
8.00
30.84
31.58
32.23
33.90
31.57
31.21
32.58
31.87
29.93
38.31
30.27
32.26
29.03
31.02
30.59
30.45
30.12
41.06
Total
Alkalinity
mg/l
65.08
69.26
67.02
66.46
68.16
67.75
68.06
92.00
69.16
68.42
67.77
66.10
68.43
68.79
67.42
68.13
70.07
61.69
69.73
67.74
70.97
68.98
69.41
69.55
69.88
58.94
S2mg/l
34790
31360
39690
36480
32755
28785
34770
25410
21840
22050
31365
33660
32130
23205
35190
30855
33660
38610
31432
31432
29947
-
Date
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
Volume, m3/d
27.75
25.36
25.00
22.00
23.40
20.00
16.00
17.00
17.00
19.00
17.00
19.00
22.00
21.00
21.00
Composition
% CO2
-
% H2 S
-
63
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
18.00
21.60
15.00
16.50
17.00
19.50
14.00
13.00
13.00
15.00
12.50
11.00
9.00
5.00
13.00
-
-
64
OPERATIONAL DATA
Period: 01 to 31 December 2000
1. FEED MATERIAL
1. Fleshing
Date
Weight, tonnes
01
02
04
05
06
07
08
09
12
13
15
16
18
19
20
21
26
27
28
30
1.2
2.5
1.0
1.8
1.5
0.7
1.0
0.7
1.0
1.5
1.3
2.1
1.8
1.5
1.5
0.8
2.0
1.5
1.0
1.8
% Moisture
90.43
83.49
83.83
85.76
84.87
84.25
83.26
80.73
84.88
85.29
87.31
86.13
85.97
95.78
81.19
83.16
84.35
% TS
16.23
15.49
11.29
9.57
16.51
16.17
14.24
15.13
15.75
16.74
19.27
15.12
14.71
12.69
13.87
14.03
14.22
18.81
16.84
15.65
% VS
% FS
56.27
56.51
57.35
63.30
36.70
64.40
35.60
58.27
61.73
55.65
44.35
58.09
41.91
53.52
46.48
52.90
47.10
64.85
35.15
53.48
46.52
63.43
36.57
62.59
37.41
52.14
47.86
53.25
46.75
63.10
36.90
50.88
49.12
52.41
47.59
57.25
42.75
2. Primary sludge
DATE
01
02
03
04
05
06
07
08
09
10
12
13
15
16
17
18
19
20
Volume, m3
1.0
1.5
2.0
1.3
1.6
1.5
1.5
0.9
1.0
2.0
1.4
1.5
1.5
2.0
2.0
2.3
2.0
1.5
% Moisture
95.22
95.63
95.33
93.82
95.18
95.05
93.95
96.33
97.33
94.28
94.26
94.87
94.98
94.57
93.66
97.74
% TS
4.78
4.37
4.67
6.18
4.82
4.95
6.05
3.67
2.67
5.72
5.74
5.13
5.02
5.43
6.34
2.26
% VS
% FS
43.61
56.39
42.10
57.90
40.30
59.70
24.84
75.16
35.03
64.97
28.79
71.21
31.75
68.25
30.58
69.42
23.90
76.10
35.11
64.89
35.73
64.27
42.22
57.78
37.03
62.97
35.51
64.49
39.50
60.50
21.75
78.25
65
21
22
23
25
26
27
28
29
30
1.0
2.0
2.0
2.0
2.2
1.8
1.4
2.0
2.0
95.65
95.76
96.56
95.52
92.97
95.02
94.27
93.11
93.76
4.35
4.24
3.44
4.48
7.03
4.98
5.73
6.89
6.24
32.19
23.03
29.90
29.77
30.02
35.81
40.57
38.32
38.09
67.81
76.97
70.10
70.23
69.98
64.19
59.43
61.68
61.91
DATE
01
02
03
04
05
06
07
08
09
10
12
13
15
16
17
18
19
20
21
22
23
25
26
27
28
29
30
Volume m3
2.00
2.50
2.00
2.00
3.00
3.00
2.50
1.50
2.00
2.00
2.00
3.00
4.00
3.50
2.00
3.50
3.50
3.00
1.75
2.00
2.00
2.00
3.50
3.00
3.00
2.00
3.50
pH
10.93
11.70
11.51
11.75
11.89
12.08
11.88
11.59
12.16
8.56
10.72
10.82
10.25
11.91
9.13
10.64
11.44
11.95
10.82
8.79
8.09
7.91
10.03
11.90
9.26
11.17
%
Moisture
90.20
90.29
94.31
93.54
93.98
91.98
91.30
89.82
92.49
91.21
90.96
88.94
91.44
90.98
93.97
92.12
92.43
91.98
91.04
95.50
96.56
95.52
90.73
91.15
90.38
92.16
87.57
% TS
9.80
9.71
5.69
6.46
6.02
8.02
8.70
10.18
7.51
8.79
9.04
11.06
8.56
9.02
6.03
7.88
7.57
8.02
8.96
4.50
3.44
4.48
9.27
8.85
9.62
7.84
12.43
matters
% VS
55.01
54.31
43.40
43.76
61.08
53.50
55.52
53.73
47.13
45.95
49.10
51.91
46.65
44.52
41.01
48.82
50.14
48.96
45.33
33.89
29.90
29.77
53.21
47.44
48.79
46.31
49.14
% FS
44.99
45.69
56.60
56.24
38.92
46.50
44.48
46.27
52.87
54.05
50.90
48.09
53.35
55.48
58.99
51.18
49.86
51.04
54.67
66.11
70.10
70.23
46.79
52.56
51.21
53.69
50.86
DATE
01
02
03
Volume,
m3
2.00
2.50
2.00
PH
8.19
8.05
-
% Moisture
97.22
97.05
95.91
% TS
2.78
2.95
4.09
% VS
% FS
36.42
63.58
38.80
61.20
31.54
68.46
66
04
05
06
07
08
09
10
12
13
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
2.00
3.00
3.00
2.50
1.50
2.00
2.00
2.00
3.00
4.00
3.50
2.00
3.50
3.50
3.00
1.75
2.00
2.00
2.00
2.00
3.50
3.00
3.00
2.00
3.50
8.08
8.22
8.02
8.21
8.03
8.10
8.17
7.96
8.00
7.97
7.98
7.99
8.03
7.97
8.01
7.98
7.99
7.95
7.87
7.94
7.99
8.02
8.26
95.55
94.43
97.24
94.30
94.73
94.23
94.04
95.45
94.79
94.62
95.18
95.69
96.66
95.90
95.25
95.50
97.16
95.04
95.83
97.26
95.68
95.38
95.11
95.33
4.45
5.57
2.76
5.7
5.27
5.77
5.96
4.55
5.21
5.38
4.82
4.31
3.34
4.1
4.75
4.5
2.84
4.96
4.17
2.74
4.32
4.62
4.89
4.67
27.50
31.31
22.85
33.60
31.23
34.76
31.91
31.23
31.89
27.65
35.26
32.38
28.01
35.41
32.43
33.45
30.04
31.18
31.12
30.07
34.54
31.01
32.73
28.89
72.50
68.69
77.15
66.40
68.77
65.24
68.09
68.77
68.11
72.35
64.74
67.62
71.99
64.59
67.57
66.55
69.96
68.82
68.88
69.93
65.46
68.99
67.27
71.11
Date
pH
02
04
05
07
08
09
11
12
13
14
15
16
18
19
20
21
22
23
8.03
8.00
7.96
7.99
7.79
7.94
7.82
7.76
7.92
7.86
7.94
7.95
7.91
7.92
7.86
7.76
7.81
7.75
Temp.
%
o
C
Moisture
22.4
22.9
25.7
26.2
26.0
27.0
27.0
24.0
27.0
28.0
27.0
27.0
26.5
94.34
94.90
95.26
94.66
94.54
94.97
94.72
93.79
92.45
94.85
94.56
94.93
95.57
%
TS
5.66
5.1
4.74
5.34
5.46
5.03
5.28
6.21
7.55
5.15
5.44
5.07
4.43
Total
matters
Alkalinity
mg/l
% VS
% FS
44135
44377
41085
38.04 61.96
45045
34.61 65.39
41828
36.29 63.71
37372
35.07 64.93
45292
38.05 61.95
45540
45788
32.19 67.81
44798
34.62 65.38
40590
33.94 66.06
44055
42.56 57.44
45045
33.40 66.60
34.37 65.63
41580
35.90 64.10
35.34 64.66
-
S2mg/l
-
67
25
7.74
96.41 3.59
26
7.80
27.0
94.95 5.05
27
7.97
26.3
94.85 5.15
30
7.88
25.9
94.65 5.35
Date
02
04
05
07
08
09
11
12
13
14
15
16
18
19
20
21
22
23
25
26
27
30
pH
8.04
8.06
7.99
8.00
7.93
7.93
7.87
7.87
7.88
7.92
7.95
7.96
8.01
7.93
7.89
7.85
7.81
7.77
7.79
7.83
7.98
7.94
Temp.
o
C
26.3
27.7
25.0
26.0
28.0
25.0
28.0
27.0
28.0
27.5
26.0
28.0
26.8
25.8
%
Moisture
96.66
95.97
96.32
96.40
96.57
97.35
96.27
95.71
95.74
95.86
95.21
95.76
96.59
96.79
96.46
96.00
95.34
%
TS
3.34
4.03
3.68
3.60
3.43
2.65
3.73
4.29
4.26
4.14
4.79
4.24
3.41
3.21
3.54
4.00
4.66
34.87
34.35
30.40
32.25
65.13
65.65
69.60
67.75
Composition of
solid matters
% VS
39.08
43.12
40.92
36.55
30.52
29.63
38.87
40.34
42.09
40.74
43.61
37.34
36.57
33.02
32.73
34.87
44.74
% FS
60.92
56.88
59.08
63.45
69.48
70.37
61.13
59.66
57.91
59.26
56.39
62.66
63.43
66.98
67.27
65.13
55.26
37920
41280
41520
Total
Alkalinity
mg/l
-
S2mg/l
32495
27160
33165
30195
27473
32670
31680
33165
35888
27225
26730
30195
35393
29453
30240
31200
30480
-
Date
02
04
05
07
08
09
11
12
13
14
15
16
18
19
pH
8.10
8.13
8.10
8.09
8.07
8.09
7.98
7.97
7.94
8.01
8.00
7.96
8.07
8.00
Temp.
o
C
%
Moisture
21.9
19.8
26.0
26.8
26.0
26.0
27.2
25.0
28.0
97.92
97.11
97.59
97.71
97.65
98.02
97.37
97.55
96.63
%
TS
2.08
2.89
2.41
2.29
2.35
1.98
2.63
2.45
3.37
Composition of
solid matters
% VS
35.17
33.28
30.44
31.21
27.24
28.31
29.63
30.19
34.18
% FS
64.83
66.72
69.56
68.79
72.76
71.69
70.37
69.81
65.82
Total
Alkalinity
mg/l
32252
28615
30690
28710
27720
26482
25740
26235
26978
24255
26483
26483
26730
S2mg/l
-
68
20
21
22
23
25
26
27
30
7.99
7.98
7.97
7.92
7.93
7.91
7.96
7.99
27.0
27.0
27.5
26.2
27.5
26.7
25.9
97.17
97.23
97.31
96.88
96.64
97.16
96.96
96.84
2.83
2.77
2.69
3.12
3.36
2.84
3.04
3.16
31.55
32.72
33.22
33.47
31.21
32.72
30.73
32.01
68.45
67.28
66.78
66.53
68.79
67.28
69.27
67.99
26235
27360
25920
27600
Composition of
solid matters
% VS
% FS
33.12
66.88
32.71
67.29
30.36
69.64
30.80
69.20
27.83
72.17
28.55
71.45
30.15
69.85
30.83
69.17
37.35
62.65
31.80
68.20
31.94
68.06
33.20
66.80
32.92
67.08
28.54
71.46
32.49
67.51
30.14
69.86
30.91
69.09
Total
Alkalinity
mg/l
31525
28857
30195
26482
24008
24750
25245
25245
25740
23513
25988
24503
25988
24750
26160
25440
26880
-
Date
02
04
05
07
08
09
11
12
13
14
15
16
18
19
20
21
22
23
25
26
27
30
pH
8.09
8.11
8.12
8.09
8.05
8.06
7.99
7.99
7.95
8.00
7.97
8.00
8.06
7.98
7.96
7.96
7.96
7.91
7.91
7.91
7.95
7.99
Temp.
o
C
23.3
20.8
26.0
26.0
27.0
26.5
27.0
24.0
28.0
28.0
25.5
27.5
26.0
27.4
26.6
25.6
%
Moisture
% TS
97.94
97.37
97.76
97.74
97.76
97.94
97.48
97.73
96.30
97.12
97.41
97.40
97.56
97.26
97.19
96.88
97.04
2.06
2.63
2.24
2.26
2.24
2.06
2.52
2.27
3.70
2.88
2.59
2.60
2.44
2.74
2.81
3.12
2.96
S2mg/l
-
Date
01
02
03
04
05
06
07
08
09
10
11
Volume, m3/d
13.00
18.50
18.50
19.50
25.00
29.00
32.00
31.50
34.00
34.00
31.25
Composition
% CO2
-
% H2 S
-
69
12
13
14
15
16
17
18
19
20
21
23
24
25
26
27
28
29
30
31
33.50
42.75
36.50
32.25
32.75
29.25
28.00
28.50
30.00
32.75
37.00
35.00
35.00
30.25
32.25
28.25
27.50
27.00
34.00
-
-
70
OPERATIONAL DATA
Period: 01 to 31 January 2001
I. FEED MATERIAL
1. Fleshing
Date
Weight, tonnes
03
04
05
06
09
10
11
12
13
15
16
18
19
23
24
25
28
% Moisture
% TS
1.50
1.00
1.00
2.00
1.00
1.00
1.20
1.00
1.50
1.50
1.50
1.50
1.25
2.00
1.50
1.80
1.00
82.33
84.90
84.65
87.15
82.14
82.16
84.12
86.19
87.74
83.20
83.61
84.21
84.44
84.85
72.63
76.98
80.30
17.67
15.10
15.35
12.85
17.86
17.84
15.88
13.81
12.26
16.80
16.39
15.79
15.56
15.15
27.37
23.02
19.70
Volume, m3
2.0
2.3
2.0
1.0
2.0
1.0
1.0
1.5
1.5
2.0
2.0
2.0
2.0
1.4
2.0
1.4
1.8
% Moisture
93.53
95.79
93.96
93.85
94.85
93.07
93.46
90.14
90.75
95.92
94.70
96.26
96.51
95.84
95.52
96.97
96.81
% TS
6.47
4.21
6.04
6.15
5.15
6.93
6.54
9.86
9.25
4.08
5.30
3.74
3.49
4.16
4.48
3.03
3.19
% VS
% FS
60.22
39.78
58.88
41.12
54.42
45.58
57.75
42.25
62.85
37.15
67.38
32.62
54.98
45.02
50.63
49.37
49.02
50.98
53.59
46.41
51.77
48.23
50.41
49.59
57.65
42.35
63.81
36.19
72.12
27.88
59.56
40.44
67.50
32.50
2. Primary sludge
DATE
01
03
04
05
06
09
10
11
12
13
15
16
18
19
23
24
25
% VS
38.50
36.64
34.69
41.44
39.36
36.64
32.32
31.77
33.20
33.58
31.40
32.39
37.76
41.43
53.69
42.36
39.71
% FS
61.50
63.36
65.31
58.56
60.64
63.36
67.68
68.23
66.80
66.42
68.60
67.61
62.24
58.57
46.31
57.64
60.29
71
DATE
01
03
04
04
05
06
07
08
09
10
11
12
13
15
16
18
19
23
24
25
27
28
Volume,
m3
2.0
3.0
2.0
1.0
1.0
1.0
2.5
2.0
1.0
2.5
2.5
2.5
2.5
3.5
3.5
3.5
3.0
3.5
2.5
3.5
2.0
2.0
pH
11.43
11.67
8.05
11.09
10.73
10.25
11.31
9.71
9.98
9.41
8.33
11.43
11.72
11.86
11.83
12.02
10.06
10.95
7.22
6.51
9.75
% Moisture
91.33
88.42
89.26
90.95
92.49
92.54
92.84
90.29
91.72
86.77
89.59
88.01
90.75
91.14
93.17
91.54
89.54
89.73
88.36
89.71
89.73
% TS
8.67
11.58
10.74
9.05
7.51
7.46
7.16
9.71
8.28
13.23
10.41
11.99
9.25
8.86
6.83
8.46
10.46
10.27
11.64
10.29
10.27
% VS
% FS
49.56
50.44
56.75
43.25
63.60
36.40
48.26
51.74
49.60
50.40
54.39
45.61
52.19
47.81
49.17
50.83
46.59
53.41
62.15
37.85
46.32
53.68
63.99
36.01
47.76
52.24
47.62
52.38
50.10
49.90
54.22
45.78
60.16
39.84
62.05
37.95
45.54
54.46
71.36
28.64
59.70
40.30
DATE
01
03
04
05
06
07
08
09
10
11
12
13
15
16
18
19
23
24
25
27
Volume,
m3
2.0
3.0
3.0
3.0
3.0
3.5
3.0
3.5
3.5
3.5
3.5
3.5
3.5
3.5
3.5
3.0
3.5
3.5
3.5
2.0
pH
7.88
7.98
7.98
8.13
7.98
7.91
7.97
8.10
7.87
8.02
8.01
7.84
7.89
7.85
7.81
7.91
7.84
7.46
7.83
7.85
% Moisture
97.62
97.42
97.18
96.96
97.25
96.95
98.22
96.15
94.97
98.15
97.46
95.75
93.83
95.67
94.83
96.79
94.72
94.20
95.02
94.67
% TS
2.38
2.58
2.82
3.04
2.75
3.05
1.78
3.85
5.03
1.85
2.54
4.25
6.17
4.33
5.17
3.21
5.28
5.80
4.98
5.33
% VS
% FS
67.44
32.56
29.48
70.52
33.41
66.59
31.26
68.74
31.10
68.90
32.87
67.13
32.29
67.71
38.61
61.39
37.92
62.08
33.51
66.49
31.87
68.13
39.20
60.80
41.01
58.99
41.84
58.16
41.36
58.64
37.83
62.17
40.54
59.46
45.59
54.41
45.08
54.92
43.59
56.41
72
28
2.0
7.80
94.80
5.20
40.92
59.08
Date
01
02
03
05
06
08
10
11
12
17
18
19
20
23
25
26
28
29
pH
7.89
7.82
7.87
7.86
7.85
7.77
7.75
7.74
7.78
7.79
7.89
7.75
7.88
7.78
7.75
7.65
7.74
7.77
Temp. oC
26.8
25.2
26.1
26.7
26.4
25.3
28.6
27.8
26.0
27.5
26.7
25.9
26.7
27.1
24.3
26.4
26.5
25.1
% Moisture
% TS
94.04
93.79
93.36
94.38
94.66
94.45
93.26
93.28
93.29
92.95
92.52
95.68
95.85
92.11
93.88
93.85
95.04
5.96
6.21
6.64
5.62
5.34
5.55
6.74
6.72
6.71
7.05
7.48
4.32
4.15
7.89
6.12
6.15
4.96
matters
% VS
31.91
32.81
34.46
35.16
36.32
37.50
43.01
37.37
40.18
38.07
42.20
38.84
39.24
42.61
44.64
38.97
42.80
% FS
68.09
67.19
65.54
64.84
63.68
62.50
56.99
62.63
59.82
61.93
57.80
61.16
60.76
57.39
55.36
61.03
57.20
Date
01
02
03
05
06
08
10
11
12
17
18
19
20
23
25
26
28
29
pH
7.79
7.85
7.92
7.89
7.86
7.78
7.78
7.75
7.79
7.80
7.90
7.72
7.78
7.68
7.85
7.54
7.83
7.78
Temp., oC
26.9
26.8
27.8
27.3
26.7
28.0
28.5
28.1
26.1
27.3
27.1
26.3
27.0
26.9
25.1
29.0
27.0
25.3
% Moisture
% TS
94.57
96.04
95.43
95.10
95.08
95.08
95.26
93.62
94.92
92.92
94.62
94.42
95.00
94.59
93.60
92.71
94.61
5.43
3.96
4.57
4.90
4.92
4.92
4.74
6.38
5.08
7.08
5.38
5.58
5.00
5.41
6.40
7.29
5.39
% VS
% FS
39.27
60.73
35.81
64.19
40.08
59.92
43.38
56.62
43.75
56.25
49.46
50.54
42.33
57.67
44.69
55.31
44.57
55.43
43.51
56.49
44.45
55.55
42.00
58.00
38.79
61.21
41.15
58.85
42.13
57.87
39.57
60.43
43.14
56.86
73
Date
01
02
03
05
06
08
10
11
12
17
18
19
20
23
25
26
28
29
pH
7.97
7.95
8.07
7.95
8.02
7.94
7.89
7.90
7.95
7.92
7.91
7.90
7.98
7.87
7.96
7.79
7.74
7.87
Temp., oC
% Moisture
26.7
27.8
27.5
27.9
26.6
27.5
28.4
28.3
26.1
27.1
27.1
26.3
26.8
26.5
26.7
28.2
26.6
26.3
96.99
96.99
96.58
96.88
96.74
96.48
96.62
96.05
96.29
96.21
96.33
96.49
96.05
96.04
95.69
95.71
95.38
% TS
3.01
3.01
3.42
3.12
3.26
3.52
3.38
3.95
3.71
3.79
3.67
3.51
3.95
3.96
4.31
4.29
4.62
% VS
% FS
30.81
69.19
33.32
66.68
32.74
67.26
32.46
67.54
33.97
66.03
35.12
64.88
34.55
65.45
37.86
62.14
40.33
59.67
36.41
63.59
39.44
60.56
37.96
62.04
37.85
62.15
37.75
62.25
42.60
57.40
39.26
60.74
39.15
60.85
Date
01
02
03
05
06
08
10
11
12
17
18
19
20
23
25
26
28
29
pH
7.97
7.93
8.00
7.95
8.02
7.97
7.90
7.90
7.95
7.93
7.92
7.91
7.92
7.85
7.89
7.78
7.81
7.87
Temp, oC
26.7
27.9
27.4
27.6
26.7
27.5
28.4
27.8
25.9
26.8
27.0
26.4
25.9
27.5
23.7
28.4
26.5
25.8
% Moisture
96.49
96.94
96.62
97.07
96.83
96.76
96.48
96.71
96.52
96.15
95.98
96.56
95.98
96.05
95.83
95.65
95.72
% TS
3.51
3.06
3.38
2.93
3.17
3.24
3.52
3.29
3.48
3.85
4.02
3.44
4.02
3.95
4.17
4.35
4.28
% VS
30.50
33.64
32.97
31.82
32.21
32.34
34.06
33.48
37.95
35.94
38.28
36.33
37.31
37.09
39.43
38.18
39.64
% FS
69.50
66.36
67.03
68.18
67.79
67.66
65.94
66.52
62.05
64.06
61.72
63.67
62.69
62.91
60.57
61.82
60.36
Date
01
02
03
Volume, m3/d
29.75
32.75
34.50
Composition
% CO2
-
% H2 S
-
74
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
37.25
40.25
34.00
40.00
41.00
41.00
40.00
39.75
37.00
43.75
42.00
37.50
49.00
46.00
47.00
43.50
42.50
50.00
50.00
49.00
55.00
61.50
63.75
64.75
55.25
50.00
53.25
-
-
75
OPERATIONAL DATA
Period: 01 to 28 February 2001
I. FEED MATERIAL
1. Fleshing
Date
01
02
03
04
05
06
07
08
09
10
11
12
13
17
19
20
21
22
23
24
25
27
28
Weight, tonnes
% Moisture
% TS
2.65
3.00
1.50
2.50
3.50
1.00
2.00
2.00
2.00
3.00
1.00
2.00
2.00
2.00
2.75
2.50
3.00
2.50
2.00
3.50
2.10
2.50
2.50
86.81
84.44
86.38
86.11
86.11
85.58
83.96
85.42
83.91
83.91
82.49
84.77
85.41
82.79
83.12
78.92
82.00
87.51
84.92
84.10
74.04
75.06
13.19
15.56
13.62
13.89
13.89
14.42
16.04
14.58
16.09
16.09
17.51
15.23
14.59
17.21
16.88
21.08
18.00
12.49
15.08
15.90
25.96
24.94
% Moisture
% TS
% VS
% FS
67.68
32.32
61.68
38.32
57.67
42.33
63.13
36.87
63.13
36.87
52.31
47.69
53.38
46.62
51.85
48.15
67.10
32.90
67.10
32.90
48.90
51.10
54.09
45.91
50.72
49.28
51.36
48.64
57.44
42.56
57.62
42.38
50.58
49.42
63.43
36.57
57.88
42.12
48.67
51.33
44.89
55.11
2. Primary sludge
DATE
01
02
03
04
05
06
07
08
09
10
11
12
13
17
Volume, m3
2.00
2.00
1.00
1.50
2.50
0.60
2.00
2.00
2.00
2.50
1.00
1.00
1.00
2.00
94.85
91.39
95.86
92.87
93.62
94.42
91.11
94.34
95.81
95.85
95.37
91.99
95.79
5.15
8.61
4.14
7.13
6.38
5.58
8.89
5.66
4.19
4.15
4.63
8.01
4.21
% VS
% FS
44.34
55.66
45.20
54.80
41.18
58.82
35.64
64.36
38.11
61.89
38.80
61.20
46.16
53.84
38.01
61.99
42.75
57.25
39.64
60.36
40.95
59.05
39.68
60.32
41.79
58.21
76
19
20
21
22
23
24
25
27
28
2.25
1.50
2.50
1.50
1.50
2.00
1.80
2.00
2.00
94.11
95.44
94.79
93.12
95.26
95.13
5.89
4.56
5.21
6.88
4.74
4.87
41.36
40.36
37.34
42.31
36.94
43.26
58.64
59.64
62.66
57.69
63.06
56.74
DATE
01
02
03
04
05
06
07
08
09
10
11
12
13
14
16
17
19
20
21
22
23
24
25
27
28
Volume,
m3
4.50
4.50
2.50
4.00
4.50
2.00
3.00
3.50
4.50
4.50
2.00
2.00
2.00
3.00
1.00
3.50
4.50
3.50
2.75
3.00
3.00
5.00
3.50
4.00
4.00
pH
7.65
9.15
7.84
7.76
9.37
7.92
8.69
9.79
9.90
10.64
7.66
9.69
9.67
7.04
8.85
7.63
7.48
8.81
8.59
7.86
9.25
7.93
7.67
7.32
7.38
% Moisture
% TS
90.67
90.66
91.34
91.85
90.81
88.83
89.72
90.47
88.88
89.84
91.27
88.84
89.37
88.07
90.31
91.92
89.32
89.39
89.57
89.10
91.20
89.99
90.06
89.18
87.90
9.33
9.34
8.66
8.15
9.19
11.17
10.28
9.53
11.12
10.16
8.73
11.16
10.63
11.93
9.69
8.08
10.68
10.61
10.43
10.90
8.80
10.01
9.94
10.82
12.10
% Moisture
% TS
% VS
% FS
58.50
41.50
58.79
41.21
50.22
49.78
54.55
45.45
54.38
45.62
52.99
47.01
47.78
52.22
49.18
50.82
43.47
56.53
47.71
52.29
53.08
46.92
50.34
49.66
45.76
54.24
71.37
28.63
44.80
55.20
47.88
52.12
45.47
54.53
47.86
52.14
46.41
53.59
48.90
51.10
47.98
52.02
53.23
46.77
54.93
45.07
46.31
53.69
43.62
56.38
II. DRAINED MATTER
DATE
01
02
03
04
05
06
Volume, m3
4.5
4.5
4.5
4.0
4.5
4.0
pH
7.92
7.74
7.92
7.90
7.87
7.91
94.85
91.39
95.86
95.55
93.56
5.15
8.61
4.14
4.45
6.44
% VS
% FS
44.34
55.66
45.20
54.80
41.18
58.82
42.47
57.53
46.05
53.95
77
07
08
09
10
11
12
13
14
16
17
19
20
21
22
23
24
25
27
28
4.0
3.5
4.5
4.5
4.0
2.0
2.0
3.0
1.0
3.5
4.5
4.5
3.0
3.0
3.0
5.0
3.5
4.0
4.0
7.91
7.88
7.87
7.84
7.93
7.83
7.93
7.96
7.84
8.14
8.19
8.06
8.09
7.93
8.08
8.04
8.00
8.05
8.19
92.43
93.02
94.34
95.81
95.85
95.37
91.99
95.98
91.92
95.54
91.24
90.68
96.74
96.89
96.34
95.99
95.72
96.56
95.58
7.57
6.98
5.66
4.19
4.15
4.63
8.01
4.02
8.08
4.46
8.76
9.32
3.26
3.11
3.66
4.01
4.28
3.44
4.42
43.55
46.15
38.01
42.75
39.64
40.95
39.68
39.16
42.00
39.55
36.56
40.38
34.94
36.70
35.77
36.37
41.60
34.46
35.12
56.45
53.85
61.99
57.25
60.36
59.05
60.32
60.84
58.00
60.45
63.44
59.62
65.06
63.30
64.23
63.63
58.40
65.54
64.88
Date
pH
01
02
03
05
06
07
08
10
12
13
16
19
20
22
23
24
28
7.71
7.59
7.66
7.78
7.80
7.66
7.73
7.89
7.80
8.01
7.86
7.89
7.85
7.84
7.82
7.87
7.90
Temp.
o
C
%
Moisture
% TS
24.7
29.6
30.1
28.0
27.5
25.0
27.7
31.1
30.1
27.4
29.4
30.0
29.3
27.7
27.1
26.7
29.3
94.63
93.56
95.74
95.22
93.27
92.78
95.55
94.10
88.29
94.91
91.43
93.86
91.35
94.20
95.29
91.88
94.73
5.37
6.44
4.26
4.78
6.73
7.22
4.45
5.90
11.71
5.09
8.57
6.14
8.65
5.80
4.71
8.12
5.27
matters
% VS
% FS
47.55
52.45
41.34
58.66
38.13
61.87
41.55
58.45
39.85
60.15
41.12
58.88
40.91
59.09
39.37
60.63
40.44
59.56
40.54
59.46
39.79
60.21
38.34
61.66
39.28
60.72
44.57
55.43
34.63
65.37
44.30
55.70
35.83
64.17
Total Alkalinity
mg/l
48953
52965
50290
53500
42532.5
-
Date
pH
01
02
7.69
7.53
Temp.
o
C
%
Moisture
23.8
29.4
93.29
91.07
% TS
6.71
8.93
matters
% VS
% FS
46.47
53.53
44.84
55.16
Total Alkalinity
mg/l
50825
-
78
03
05
06
07
08
10
12
13
16
19
20
22
23
24
28
7.65
7.92
7.79
7.68
7.72
7.85
7.62
7.86
7.86
7.95
7.82
7.87
7.96
7.83
7.88
28.5
29.5
27.6
25.2
29.3
30.5
31.3
27.4
29.5
29.9
29.2
28.4
29.9
27.3
29.5
95.20
94.94
93.19
91.87
93.92
93.12
89.36
95.61
95.38
96.25
92.39
95.70
95.39
91.62
93.76
4.80
5.06
6.81
8.13
6.08
6.88
10.64
4.39
4.62
3.75
7.61
4.30
4.61
8.38
6.24
38.26
41.11
39.25
43.55
38.86
49.08
49.56
39.09
40.12
35.98
38.55
38.09
35.69
43.63
38.96
61.74
58.89
60.75
56.45
61.14
50.92
50.44
60.91
59.88
64.02
61.45
61.91
64.31
56.37
61.04
54035
42533
55372.5
39590
-
Date
PH
01
02
03
05
06
07
08
10
12
13
16
19
20
22
23
24
28
7.82
7.75
7.75
7.92
7.87
7.76
7.89
7.94
7.84
7.97
7.92
7.89
7.98
8.00
8.02
8.04
8.02
Temp.
o
C
%
Moisture
24.7
29.3
31.3
27.7
25.2
25.6
26.7
30.4
30.2
27.4
28.7
28.8
28.9
29.7
30.1
27.4
29.5
95.08
95.27
95.73
95.75
95.12
95.66
96.04
96.03
95.88
95.66
95.32
96.48
94.51
95.42
95.05
95.49
94.86
% TS
4.92
4.73
4.27
4.25
4.88
4.34
3.96
3.97
4.12
4.34
4.68
3.52
5.49
4.58
4.95
4.51
5.14
matters
% VS
% FS
45.11
54.89
39.20
60.80
39.52
60.48
39.42
60.58
39.15
60.85
39.10
60.90
38.37
61.63
38.83
61.17
36.58
63.42
38.82
61.18
38.70
61.30
33.44
66.56
37.84
62.16
36.79
63.21
35.88
64.12
38.58
61.42
37.40
62.60
Total Alkalinity
mg/l
37985
35588
36280
41730
40660
-
Date
pH
01
02
03
05
06
07
08
10
7.83
7.76
7.75
7.99
7.90
7.80
7.88
7.94
Temp.
o
C
%
Moisture
24.3
29.7
31.1
28.0
27.7
25.8
28.2
30.1
95.89
95.77
96.34
95.81
95.72
96.08
96.28
96.36
% TS
4.11
4.23
3.66
4.19
4.28
3.92
3.72
3.64
matters
% VS
% FS
42.81
57.19
39.15
60.85
38.86
61.14
38.66
61.34
38.16
61.84
40.14
59.86
37.92
62.08
39.27
60.73
Total Alkalinity
mg/l
33705.0
32100.0
35043.0
79
12
13
16
19
20
22
23
24
28
7.84
7.98
7.93
7.95
7.98
7.96
7.98
8.05
8.01
30.5
27.2
28.8
29.2
28.7
28.8
30.0
27.5
29.5
96.45
95.90
95.28
96.20
95.22
95.85
95.79
95.76
94.52
3.55
4.10
4.72
3.80
4.78
4.15
4.21
4.24
5.48
36.14
37.81
38.70
29.66
37.42
35.19
35.62
37.95
36.98
63.86
62.19
61.30
70.34
62.58
64.81
64.38
62.05
63.02
37717.5
36915.0
-
Date
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Volume, m3/d
65.50
69.00
70.25
75.00
82.25
79.00
78.25
74.25
76.00
75.00
71.00
68.00
70.25
69.25
69.50
66.50
68.25
79.50
74.75
80.00
84.50
89.00
93.50
94.00
93.25
96.25
93.25
88.00
Composition
% CO2
19
19
20
16
18
-
% H2 S
-
80
OPERATIONAL DATA
Period: 01 to 31 March 2001
I. FEED MATERIAL
1. Fleshing
Date
Weight, tonnes
% Moisture
3.50
2.30
3.25
3.00
3.75
4.00
3.00
1.70
1.40
2.40
2.00
3.00
2.50
85.58
85.25
74.25
77.60
67.33
63.71
73.57
83.27
84.91
79.34
70.74
84.88
79.75
01
02
03
05
10
12
13
24
26
27
29
30
31
% TS
14.42
14.75
25.75
22.40
32.67
36.29
26.43
16.73
15.09
20.66
29.26
15.12
20.25
% VS
% FS
49.05
50.95
58.09
41.91
56.57
43.43
40.77
59.23
66.19
33.81
71.38
28.62
78.92
21.08
68.34
31.66
58.39
41.61
45.61
54.39
37.78
62.22
58.22
41.78
47.71
52.29
2. Primary sludge
DATE
Volume, m3
01
02
03
05
10
12
13
24
26
27
29
30
31
% Moisture
2.60
1.50
2.25
2.00
2.50
2.00
2.00
1.00
1.00
1.50
1.00
2.30
2.00
% TS
% VS
% FS
41.81
58.19
95.14
4.86
94.44
5.56
41.92
58.08
92.99
93.70
93.80
96.45
96.18
96.20
92.01
95.65
95.61
7.01
6.30
6.20
3.55
3.82
3.80
7.99
4.35
4.39
42.44
35.75
88.28
29.00
30.35
30.42
34.79
30.95
31.71
57.56
64.25
11.72
71.00
69.65
69.58
65.21
69.05
68.29
DATE
01
02
03
05
10
12
Volume,
m3
3.0
4.0
4.5
4.0
5.0
4.0
PH
8.31
7.04
7.05
7.69
6.81
7.09
%
Moisture
89.98
90.75
83.27
86.50
84.83
84.87
% TS
10.02
9.25
16.73
13.50
15.17
15.13
% VS
% FS
45.33
54.67
50.07
49.93
47.37
52.63
54.54
45.46
66.96
33.04
65.69
34.31
81
13
17
24
26
27
29
30
31
3.5
2.0
2.0
2.0
2.7
3.0
4.0
3.5
7.46
87.09
12.91
65.92
34.08
11.25
9.72
10.43
10.57
10.42
9.40
84.64
90.94
87.17
85.71
88.34
88.68
15.36
9.06
12.83
14.29
11.66
11.32
55.98
45.18
53.06
45.48
57.30
47.40
44.02
54.82
46.94
54.52
42.70
52.60
DATE
01
02
03
05
10
12
13
29
30
31
Volume,
m3
3.0
4.0
4.5
4.0
5.0
4.0
3.5
3.0
4.0
3.5
pH
8.00
8.06
8.06
8.07
8.00
7.96
7.92
8.00
7.92
7.83
%
Moisture
94.73
95.71
95.84
94.70
95.53
95.21
95.34
95.29
93.54
95.49
% TS
5.27
4.29
4.16
5.30
4.47
4.79
4.66
4.71
6.46
4.51
% VS
% FS
33.66
66.34
36.60
63.40
32.71
67.29
33.72
66.28
32.56
67.44
32.58
67.42
38.72
61.28
30.50
69.50
38.33
61.67
30.29
69.71
Date
pH
01
02
05
07
08
10
12
13
17
19
20
22
23
24
26
27
28
29
30
7.76
7.78
7.80
7.70
7.98
7.77
7.82
7.72
7.78
7.77
7.75
7.78
7.74
7.86
7.80
7.74
7.78
7.79
7.80
Temp.
o
C
32.7
29.6
26.1
29.0
29.3
30.1
30.2
31.4
26.4
26.0
32.4
26.4
33.0
32.1
31.3
28.9
30.5
29.2
32.1
%
Moisture
% TS
90.71
88.07
91.93
92.19
93.87
90.48
92.93
91.76
91.37
92.24
89.94
91.03
94.81
95.04
85.73
92.32
94.13
91.96
93.97
9.29
11.93
8.07
7.81
6.13
9.52
7.07
8.24
8.63
7.76
10.06
8.97
5.19
4.96
14.27
7.68
5.87
8.04
6.03
matters
% VS
% FS
42.76
57.24
43.64
56.36
40.80
59.20
39.79
60.21
38.07
61.93
36.35
63.65
42.32
57.68
43.42
56.58
41.79
58.21
42.60
57.40
44.38
55.62
42.20
57.80
40.22
59.78
45.52
54.48
40.61
59.39
41.25
58.75
39.88
60.12
40.43
59.57
39.35
60.65
Total
Alkalinity,
mg/l
54035
54570
56940
47430
51615
49057
42315
51150
82
31
7.77
23.7
83.97
16.03
37.57
62.43
Date
01
02
05
07
08
10
12
13
17
19
20
22
23
24
26
27
28
29
30
31
pH
7.78
8.06
8.16
7.75
7.75
7.87
7.82
7.78
7.78
7.73
7.79
7.79
7.81
7.84
7.79
7.66
7.71
7.83
7.75
7.82
Temp.
o
C
32.2
28.1
26.2
29.0
29.3
32.9
30.5
31.7
30.9
25.3
32.3
28.8
33.0
32.9
29.2
27.6
27.8
28.8
32.7
26.0
%
Moisture
% TS
85.78
93.24
94.02
92.95
94.04
91.42
91.93
93.81
93.99
93.36
94.17
92.75
95.21
95.01
95.00
90.94
93.20
93.47
88.10
89.45
14.22
6.76
5.98
7.05
5.96
8.58
8.07
6.19
6.01
6.64
5.83
7.25
4.79
4.99
5.00
9.06
6.80
6.53
11.90
10.55
matters
% VS
43.32
44.19
40.33
40.34
38.82
37.50
41.21
41.86
42.59
41.57
40.33
41.25
41.98
41.93
41.17
48.39
42.20
37.77
41.06
38.69
% FS
56.68
55.81
59.67
59.66
61.18
62.50
58.79
58.14
57.41
58.43
59.67
58.75
58.02
58.07
58.83
51.61
57.80
62.23
58.94
61.31
Total
Alkalinity,
mg/l
48685.0
45742.5
53040.0
44407.0
50220.0
36037.0
47430.0
47430.0
Date
01
02
05
07
08
10
12
13
17
19
20
22
23
24
26
27
28
29
pH
7.96
7.92
7.67
7.99
8.02
7.98
8.01
7.78
7.88
7.88
7.84
7.84
7.90
7.92
7.91
7.83
7.84
7.95
Temp,
o
C
32.2
28.5
25.9
29.1
29.3
32.6
30.5
30.2
31.0
29.3
31.2
30.5
33.0
32.2
33.7
29.8
26.6
28.9
%
Moisture
% TS
94.08
95.03
87.86
92.70
91.78
94.21
93.94
95.12
94.85
94.30
94.91
91.09
93.65
92.74
93.16
92.25
93.99
92.96
5.92
4.97
12.14
7.30
8.22
5.79
6.06
4.88
5.15
5.70
5.09
8.91
6.35
7.26
6.84
7.75
6.01
7.04
matters
% VS
41.19
36.04
40.13
37.98
39.22
34.92
39.23
38.00
37.43
37.96
39.06
35.24
43.91
39.02
40.31
46.25
42.14
44.22
% FS
58.81
63.96
59.87
62.02
60.78
65.08
60.77
62.00
62.57
62.04
60.94
64.76
56.09
60.98
59.69
53.75
57.86
55.78
Total
Alkalinity,
mg/l
46812.5
46277.5
48360.0
43477.0
47197.0
41617.0
41617.0
41152.0
83
30
31
7.86
7.94
30.1
26.7
92.99
90.06
7.01
9.94
41.34
41.91
58.66
58.09
Date
pH
01
02
05
07
08
10
12
13
17
19
20
22
23
24
26
27
28
29
30
31
7.95
8.02
8.10
8.00
8.01
7.98
8.01
7.97
7.89
7.82
7.84
7.87
7.89
7.93
7.88
7.79
7.85
7.89
7.87
8.01
Temp.
o
C
32.0
29.1
26.3
29.1
29.3
32.3
30.3
29.4
30.4
28.6
32.1
31.2
33.0
30.5
30.9
27.7
28.6
26.1
30.6
28.0
%
Moisture
% TS
95.30
94.21
93.49
95.56
93.80
93.77
94.26
94.59
90.76
90.74
93.08
90.72
93.70
92.32
94.39
89.78
94.33
92.10
88.61
92.35
4.70
5.79
6.51
4.44
6.20
6.23
5.74
5.41
9.24
9.26
6.92
9.28
6.30
7.68
5.61
10.22
5.67
7.90
11.39
7.65
matters
% VS
% FS
34.52
65.48
41.43
58.57
38.17
61.83
38.88
61.12
26.78
73.22
35.02
64.98
36.34
63.66
34.77
65.23
38.84
61.16
41.14
58.86
40.37
59.63
44.09
55.91
41.35
58.65
39.52
60.48
38.09
61.91
43.42
56.58
39.36
60.64
38.48
61.52
39.42
60.58
40.03
59.97
Total
Alkalinity,
mg/l
43870.0
43602.5
44980.0
48592.0
44640.0
40687.0
50917.0
46732.0
Date
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
Volume, m3/d
90.25
95.00
90.50
84.00
89.00
89.25
89.75
82.25
75.50
75.50
67.75
73.25
67.75
55.50
Composition
% CO2
23
23
-
% H2 S
-
84
20
21
22
23
24
25
26
27
28
29
30
31
47.50
46.00
51.00
40.75
53.00
47.50
54.25
74.50
78.25
78.25
81.00
84.00
23
21
20
20
21
-
-
85
OPERATIONAL DATA
Period: 01 to 30 April 2001
I. FEED MATERIAL
1. Fleshing
Date
02
03
04
06
08
09
10
11
12
13
15
17
18
19
20
21
22
23
24
27
28
29
Weight, tonnes
3.0
3.0
3.0
2.0
3.0
3.0
4.0
4.0
4.0
4.0
2.5
2.5
2.0
1.0
2.0
3.5
2.7
3.5
1.0
2.5
3.0
1.7
% Moisture
75.64
71.94
79.70
78.28
70.51
78.58
75.27
71.73
72.39
82.80
75.13
72.92
77.04
71.48
88.78
82.21
82.73
82.76
81.93
67.17
84.69
70.54
% TS
24.36
28.06
20.30
21.72
29.49
21.42
24.73
28.27
27.61
17.20
24.87
27.08
22.96
28.52
11.22
17.79
17.27
17.24
18.07
32.83
15.31
29.46
% VS
44.91
37.86
53.04
42.89
51.81
45.94
49.66
36.16
30.90
54.36
56.06
41.79
49.24
26.79
65.89
67.04
55.58
49.16
64.97
61.82
62.54
46.01
% FS
55.09
62.14
46.96
57.11
48.19
54.06
50.34
63.84
69.10
45.64
43.94
58.21
50.76
73.21
34.11
32.96
44.42
50.84
35.03
38.18
37.46
53.99
2. Primary sludge
DATE
02
03
04
06
08
09
10
11
12
13
17
18
19
20
21
22
Volume, m3
1.85
2.00
2.00
1.50
1.50
2.00
2.00
2.00
2.00
2.50
2.00
1.00
1.00
1.00
2.50
2.00
% Moisture
97.49
95.12
96.27
94.47
94.49
95.66
93.41
94.77
92.64
93.45
96.00
94.31
95.71
93.38
92.20
89.44
% TS
2.51
4.88
3.73
5.53
5.51
4.34
6.59
5.23
7.36
6.55
4.00
5.69
4.29
6.62
7.80
10.56
% VS
% FS
30.33
69.67
31.89
68.11
38.96
61.04
30.00
70.00
37.6
62.4
36.04
63.96
36.35
63.65
37.24
62.76
35.09
64.91
30.53
69.47
40.61
59.39
35.60
64.40
42.77
57.23
36.65
63.35
34.42
65.58
33.16
66.84
86
23
24
27
28
29
1.00
1.00
2.00
2.00
1.00
94.27
93.60
94.45
94.56
94.84
5.73
6.40
5.55
5.44
5.16
31.67
25.97
32.98
36.45
34.34
68.33
74.03
67.02
63.55
65.66
DATE
02
03
04
07
08
09
10
11
12
13
17
18
19
20
21
22
23
24
27
28
29
30
Volume,
m3
pH
%
Moisture
% TS
2.0
5.0
4.0
3.0
5.0
5.0
5.0
5.0
4.5
3.5
2.7
1.5
2.5
5.0
3.5
4.0
2.0
3.5
4.0
2.0
2.0
9.30
7.41
8.20
8.99
9.07
7.98
7.84
8.75
8.52
8.50
8.04
10.82
11.65
9.39
8.16
9.01
8.18
7.47
8.68
7.35
7.39
88.69
84.50
87.86
87.92
84.25
87.37
87.39
86.93
87.13
89.14
87.17
77.04
86.60
91.13
93.32
87.53
91.93
89.30
90.98
88.21
83.54
87.26
11.31
15.50
12.14
12.08
15.75
12.63
12.61
13.07
12.87
10.86
12.83
22.96
13.40
8.87
6.68
12.47
8.07
10.70
9.02
11.79
16.46
12.74
% VS
% FS
48.22
51.78
37.54
62.46
43.21
56.79
40.54
59.46
45.45
54.55
48.77
51.23
47.58
52.42
45.99
54.01
41.29
58.71
47.15
52.85
35.38
64.62
49.24
50.76
33.83
66.17
52.18
47.82
48.21
51.79
40.87
59.13
35.77
64.23
52.01
47.99
52.14
47.86
55.80
44.20
44.50
55.50
43.72
56.28
DATE
02
03
04
06
09
10
11
12
13
15
17
18
19
Volume,
m3
2.0
5.0
4.0
3.0
5.0
5.0
5.0
5.0
4.5
pH
% Moisture
% TS
7.84
7.95
7.93
7.87
7.97
7.98
7.93
7.97
7.92
95.12
95.12
94.42
4.88
4.88
5.58
3.5
2.7
1.5
7.90
7.82
7.86
95.66
93.41
94.77
92.64
93.45
92.78
94.02
94.90
93.59
4.34
6.59
5.23
7.36
6.55
7.22
5.98
5.10
6.41
% VS
% FS
37.47
62.53
31.89
68.11
35.81
64.19
36.04
36.35
37.24
35.09
30.53
29.97
34.92
43.55
32.24
63.96
63.65
62.76
64.91
69.47
70.03
65.08
56.45
67.76
87
20
21
22
23
24
27
28
29
30
2.5
5.0
3.0
3.5
2.0
2.5
3.0
2.0
2.0
7.79
7.92
8.05
8.27
7.96
7.83
93.38
92.20
89.44
94.27
93.60
94.45
94.56
94.84
95.53
6.62
7.80
10.56
5.73
6.40
5.55
5.44
5.16
4.47
36.65
34.42
33.16
31.67
25.97
32.98
36.45
34.44
30.97
63.35
65.58
66.84
68.33
74.03
67.02
63.55
65.56
69.03
Date
02
03
04
05
06
09
10
11
13
14
15
16
17
18
20
21
23
24
25
27
28
pH
Temp,
o
C
%
Moisture
% TS
7.76
7.86
7.77
7.67
7.68
7.84
7.70
7.64
7.65
7.56
7.72
7.76
7.79
7.65
7.71
7.76
7.79
7.73
29.3
27.8
29.4
28.8
33.1
26.8
27.5
19.6
26.7
27.0
29.0
30.1
31.0
29.0
30.3
26.9
28.1
30.7
92.23
91.12
93.03
88.42
87.15
92.17
91.37
88.12
86.78
7.77
8.88
6.97
11.58
12.85
7.83
8.63
11.88
13.22
7.88
7.67
33.1
29.3
88.50
88.08
89.73
91.30
85.07
92.50
89.75
90.75
90.44
87.13
85.23
11.50
11.92
10.27
8.70
14.93
7.50
10.25
9.25
9.56
12.87
14.77
matters
% VS
% FS
40.75
59.25
38.73
61.27
38.98
61.02
41.18
58.82
32.85
67.15
35.08
64.92
32.58
67.42
32.78
67.22
32.17
67.83
31.00
35.41
33.38
56.20
33.64
37.56
32.24
27.22
53.71
32.62
69.00
64.59
66.62
43.80
66.36
62.44
67.76
72.78
46.29
67.38
Total
Alkalinity
mg/l
48825
46500
54172
Date
02
03
04
05
06
09
10
11
PH
7.79
7.84
7.74
7.72
7.71
7.75
7.76
7.84
Temp.
o
C
%
Moisture
27.5
28.1
28.0
26.8
32.5
28.0
28.0
21.1
93.80
93.35
93.85
91.33
84.28
88.72
85.03
85.12
% TS
6.20
6.65
6.15
8.67
15.72
11.28
14.97
14.88
matters
% VS
% FS
38.97
61.03
38.39
61.61
36.40
63.60
39.53
60.47
34.02
65.98
34.38
65.62
31.40
68.60
33.07
66.93
Total
Alkalinity
mg/l
43245
88
13
14
15
16
17
18
20
21
23
24
25
27
28
7.82
7.65
7.72
7.78
7.82
7.71
7.75
7.73
7.84
7.71
26.5
23.0
26.7
30.1
27.8
28.0
30.6
27.4
33.9
33.3
7.80
7.62
33.5
30.9
84.91
15.09
37.60
62.40
91.40
87.98
90.36
89.58
87.60
87.28
86.16
87.21
8.60
12.02
9.64
10.42
12.40
12.72
13.84
12.79
40.50
33.72
36.77
33.13
25.72
30.40
31.12
59.50
66.28
63.23
66.87
74.28
69.60
68.88
51150
45105
Date
02
03
04
05
06
09
10
11
13
14
15
16
17
18
20
21
23
24
25
27
28
matters
% VS
% FS
39.83
60.17
39.43
60.57
38.34
61.66
41.06
58.94
37.71
62.29
36.80
63.20
38.12
61.88
38.01
61.99
Temp,
o
C
%
Moisture
7.88
7.93
7.87
7.87
7.86
7.97
7.91
7.89
7.95
7.86
7.95
7.87
7.87
7.80
7.81
7.78
7.90
7.78
27.5
28.1
30.2
30.9
32.9
28.8
27.4
20.5
27.4
26.9
28.5
30.0
29.0
29.1
31.0
29.0
34.0
33.6
94.34
93.81
94.18
94.03
93.04
93.41
92.56
89.62
5.66
6.19
5.82
5.97
6.96
6.59
7.44
10.38
93.62
6.38
37.86
62.14
7.89
7.83
26.9
25.8
88.50
92.25
93.69
92.85
93.44
91.32
90.56
91.29
11.50
7.75
6.31
7.15
6.56
8.68
9.44
8.71
37.47
33.98
38.06
34.36
27.22
31.27
33.87
62.53
66.02
61.94
65.64
72.78
68.73
66.13
pH
% TS
Total
Alkalinity
mg/l
42547
41850
44640
Date
02
03
04
05
06
09
pH
7.90
7.96
7.87
7.87
7.85
7.93
Temp,
o
C
%
Moisture
26.0
28.5
30.3
30.5
33.1
32.0
93.79
94.13
93.24
93.21
94.52
93.18
% TS
6.21
5.87
6.76
6.79
5.48
6.82
matters
% VS
% FS
41.39
58.61
37.66
62.34
38.94
61.06
46.38
53.62
33.86
66.14
37.47
62.53
Total
Alkalinity
mg/l
39757
89
10
11
13
14
15
16
17
18
20
21
23
24
25
27
28
7.87
7.97
7.92
7.86
7.93
7.87
7.84
7.85
7.84
7.82
7.84
7.84
30.4
18.3
25.5
26.6
26.9
29.0
30.1
28.0
30.9
28.2
28.0
30.1
7.83
7.80
28.7
26.9
91.85
8.15
38.12
61.88
93.45
6.55
30.53
69.47
92.78
92.29
92.52
94.90
89.94
92.59
89.44
93.60
87.04
90.50
89.63
7.22
7.71
7.48
5.10
10.06
7.41
10.56
6.40
12.96
9.50
10.37
29.97
37.27
35.60
43.55
32.48
70.03
62.73
64.40
56.45
67.52
33.16
25.97
31.20
30.21
66.84
74.03
68.80
69.79
40687
55567
Date
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Volume, m3/d
85.00
86.00
83.25
91.25
92.50
91.50
92.00
86.00
84.00
90.00
93.25
69.50
70.50
72.00
65.50
60.00
66.75
66.00
68.00
65.75
67.00
68.00
51.00
75.00
52.00
50.50
61.25
59.25
56.50
53.75
Composition
% CO2
24
21
24
25
25
24
24
24
23
24
23
-
% H2 S
-
90
OPERATIONAL DATA
Period: 01 to 31 May 2001
I. FEED MATERIAL
1. Fleshing
Date
Weight, tonnes
02
09
10
11
19
20
21
22
23
24
25
28
29
30
31
% Moisture
3.0
3.0
3.5
4.0
4.0
3.2
3.5
3.5
4.0
3.2
3.3
3.5
3.5
3.5
2.7
77.81
81.68
84.10
84.20
80.18
80.86
81.87
81.67
84.00
72.50
77.59
82.72
80.02
84.40
83.25
% TS
22.19
18.32
15.90
15.80
19.82
19.14
18.13
18.33
16.00
27.50
22.41
17.28
19.98
15.60
16.75
% VS
% FS
67.02
32.98
61.00
39.00
65.03
34.97
64.28
35.72
61.00
52.99
54.32
34.36
69.42
73.68
68.57
57.04
63.06
39.00
47.01
45.68
65.64
30.58
26.32
31.43
42.96
36.94
2. Primary sludge
DATE
Volume, m3
02
09
10
11
19
20
21
22
23
24
25
26
28
29
30
31
% Moisture
2.5
2.5
2.3
2.0
2.5
2.5
3.0
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.0
94.08
95.64
92.72
95.38
94.39
94.08
95.64
93.76
93.05
95.19
93.50
92.46
92.99
81.68
94.67
80.47
% TS
5.92
4.36
7.28
4.62
5.61
5.92
4.36
6.24
6.95
4.81
6.50
7.54
7.01
18.32
5.33
19.53
% VS
% FS
38.95
61.05
37.51
62.49
30.20
69.80
32.26
67.74
42.91
57.09
42.90
57.10
38.93
61.07
34.05
65.95
34.75
65.25
37.97
62.03
33.74
66.26
34.15
65.85
36.84
63.16
5.33
94.67
18.32
81.68
19.72
80.28
DATE
Volume,
PH
% Moisture
% TS
m3
02
5
8.25
88.04
11.96
% VS
% FS
58.82
41.18
91
03
09
10
11
17
19
20
21
22
23
24
25
26
27
28
29
30
31
5
5
5
5
2
5
5
5
5
4
5
5
5
5
4
5
5
4
9.27
8.57
7.54
89.57
87.67
88.56
10.43
12.33
11.44
45.61
51.43
43.11
54.39
48.57
56.89
88.08
88.12
88.71
91.23
90.73
88.93
87.33
87.06
11.92
11.88
11.29
8.77
9.27
11.07
12.67
12.94
51.07
50.45
45.77
48.85
60.97
53.59
59.60
63.58
48.93
49.55
54.23
51.15
39.03
46.41
40.40
36.42
88.45
86.49
87.70
88.24
11.55
13.51
12.30
11.76
57.30
54.34
54.01
51.96
42.70
45.66
45.99
48.04
DATE
02
04
09
10
11
19
20
21
22
23
24
25
26
28
29
30
31
Volume,
m3
5.0
2.0
5.0
4.0
5.0
3.0
3.5
4.0
5.0
4.0
5.0
5.0
5.0
4.0
5.0
5.0
4.0
pH
8.46
7.35
7.89
7.80
7.95
%
Moisture
94.08
94.20
95.64
92.72
95.38
93.15
94.08
95.64
93.76
94.02
94.58
93.50
92.46
92.99
% TS
94.74
94.00
% VS
% FS
5.92
5.80
4.36
7.28
4.62
6.85
5.92
4.36
6.24
5.98
5.42
6.50
7.54
7.01
38.95
37.55
37.51
30.20
32.26
29.51
42.90
38.93
34.05
34.92
36.74
33.74
34.15
36.84
61.05
62.45
62.49
69.80
67.74
70.49
57.10
61.07
65.95
65.08
63.26
66.26
65.85
63.16
5.26
6.00
34.23
32.02
65.77
67.98
III. MATTER IN DIGESTOS
Date
02
03
pH
7.66
8.13
Temp.
o
C
%
Moisture
28.3
30.9
88.39
88.92
% TS
11.61
11.08
matters
% VS
% FS
30.02
69.98
25.86
74.14
Total
Alkalinity
mg/l
92
05
07
08
10
11
13
14
16
19
23
24
26
28
29
31
7.65
7.66
7.78
7.84
7.79
31.2
30.1
34.3
30.5
28.0
80.95
90.84
90.49
90.72
90.29
91.99
92.68
84.29
91.55
91.08
87.25
84.81
86.64
93.27
89.42
19.05
9.16
9.51
9.28
9.71
8.01
7.32
15.71
8.45
8.92
12.75
15.19
13.36
6.73
10.58
25.78
35.43
30.90
32.63
36.28
31.61
34.34
25.88
30.72
32.82
30.57
35.83
24.62
50.04
21.47
74.22
64.57
69.10
67.37
63.72
68.39
65.66
74.12
69.28
67.18
69.43
64.17
75.38
49.96
78.53
55738
Date
02
03
05
07
08
10
11
13
14
16
19
23
24
26
28
29
31
pH
7.64
7.96
7.55
7.64
7.79
7.87
7.76
Temp,
o
C
%
Moisture
27.3
28.9
31.7
30.7
33.9
30.2
27.4
83.98
92.67
16.02
7.33
92.83
90.78
90.88
89.54
89.18
93.29
94.82
92.27
88.76
81.46
93.11
75.43
93.03
86.74
7.17
9.22
9.12
10.46
10.82
6.71
5.18
7.73
11.24
18.54
6.89
24.57
6.97
13.26
% TS
matters
% VS
% FS
27.82
72.18
32.74
67.26
35.35
24.34
30.2
35.28
22.74
32.09
29.60
31.62
32.20
44.60
30.47
22.12
26.92
13.35
64.65
75.66
69.80
64.72
77.26
67.91
70.40
68.38
67.80
55.40
69.53
77.88
73.08
86.65
Total
Alkalinity
mg/l
51653
Date
02
03
05
07
08
10
11
13
PH
7.74
7.95
7.68
7.65
7.83
7.90
7.87
Temp,
o
C
%
Moisture
28.9
27.3
30.2
28.2
35.3
30.5
27.7
81.63
90.61
18.37
9.39
94.62
88.67
92.75
90.53
90.45
5.38
11.33
7.25
9.47
9.55
% TS
matters
% VS
% FS
25.24
74.76
26.83
73.17
36.31
30.34
30.33
32.83
26.04
63.69
69.66
69.67
67.17
73.96
Total
Alkalinity
mg/l
50933
93
14
16
19
24
26
28
29
31
88.05
90.50
86.58
83.82
87.45
86.83
91.02
92.22
11.95
9.50
13.42
16.18
12.55
13.17
8.98
7.78
29.94
26.38
27.51
27.46
29.68
27.03
41.28
35.69
70.06
73.62
72.49
72.54
70.32
72.97
58.72
64.31
Date
pH
02
03
05
07
08
10
11
13
14
16
19
23
24
26
28
29
31
7.69
7.92
7.71
7.76
7.83
7.93
7.82
Temp.
o
C
%
Moisture
28.4
29.4
32.9
29.1
33.4
30.5
28.1
88.60
90.81
73.64
95.15
90.70
93.14
93.32
93.56
92.76
94.53
92.77
93.05
92.33
92.46
91.85
94.87
94.67
% TS
11.40
9.19
26.36
4.85
9.30
6.86
6.68
6.44
7.24
5.47
7.23
6.95
7.67
7.54
8.15
5.13
5.33
matters
% VS
% FS
28.64
71.36
30.89
69.11
30.56
69.44
37.97
62.03
31.55
68.45
30.00
70.00
35.46
64.54
30.06
69.94
31.08
68.92
30.38
69.62
33.68
66.32
34.75
65.25
31.35
68.65
34.15
65.85
35.58
64.42
25.17
74.83
47.46
52.54
Total
Alkalinity
mg/l
43965
Date
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
Volume, m3/d
65.00
58.75
61.50
34.50
59.00
54.75
32.75
48.00
44.00
50.50
58.00
57.75
47.25
32.75
36.75
27.25
Composition
% CO2
-
% H2 S
-
94
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
28.75
29.25
27.75
27.25
29.00
36.00
33.25
34.50
50.00
52.25
48.50
44.25
42.00
36.00
35.75
-
-
95
OPERATIONAL DATA
Period: 01 to 30 June 2001
I. FEED MATERIAL
1. Fleshing
Date
01
02
04
05
06
07
08
26
27
Weight,
tonnes
3.5
3.2
% Moisture
84.88
77.30
77.20
83.25
83.25
76.00
84.91
88.89
88.89
3.5
3.0
3.0
3.2
2.0
2.0
% TS
15.12
22.70
22.80
16.75
16.75
24.00
15.09
11.11
11.11
% VS
% FS
63.12
36.88
73.48
26.52
55.01
44.99
63.06
36.94
63.06
36.94
35.51
64.49
58.39
41.61
65.63
34.37
65.63
34.37
2. Primary sludge
DATE
Volume, m3
01
02
04
05
06
07
08
26
27
% Moisture
2.5
2.3
2.7
2.5
2.3
2.5
2.7
2.0
2.0
93.93
93.28
95.19
95.44
92.33
94.19
96.13
92.32
92.32
% TS
6.07
6.72
4.81
4.56
7.67
5.81
3.87
7.68
7.68
% VS
% FS
47.341
52.659
46.50
53.50
42.72
57.28
50.56
49.44
37.11
62.89
50.93
49.07
30.35
69.65
38.53
61.47
38.53
61.47
DATE
01
02
04
05
06
07
08
26
27
Volume,
m3
5
5
5
5
5
5
5
3
3
pH
9.03
7.95
%
Moisture
88.07
88.23
89.24
88.21
89.32
82.80
87.17
88.36
90.20
% TS
11.93
11.77
10.76
11.79
10.68
17.20
12.83
11.64
9.80
% VS
55.17
53.60
44.83
55.80
62.50
42.70
53.06
53.95
59.15
% FS
44.83
46.40
55.17
44.20
37.50
57.30
46.94
46.05
40.85
96
DATE
01
02
04
05
06
07
08
24
25
Volume,
m3
5
5
5
5
5
5
5
3
3
pH
%
Moisture
92.97
93.48
93.48
94.56
92.33
93.95
94.33
7.60
94.38
7.62
93.16
% TS
7.03
6.52
6.52
5.44
7.67
6.05
5.67
5.62
6.84
% VS
% FS
37.840
62.160
36.500
63.500
31.885
68.115
36.500
63.500
37.110
62.890
33.470
66.530
39.360
60.640
46.940
53.060
36.080
63.920
Date
pH
Temp,
o
C
02
03
04
07
16
18
19
25
%
Moisture
% TS
83.79
94.62
92.75
89.25
90.61
89.50
88.13
89.94
16.21
5.38
7.25
10.75
9.39
10.50
11.87
10.06
matters
% VS
% FS
34.56
65.44
42.00
58.00
35.63
64.37
43.60
30.78
30.93
33.61
Total
Alkalinity
mg/l
56.40
69.22
69.07
66.39
Date
pH
Temp,
o
C
02
03
04
07
16
18
19
25
%
Moisture
% TS
88.54
91.7
91.84
92.52
87.01
91.21
91.85
89.73
11.46
8.3
8.16
7.48
12.99
8.79
8.15
10.27
matters
% VS
% FS
32.74
67.26
38.14
61.86
34.25
65.75
34.51
65.49
34.79
65.21
37.62
62.38
41.76
58.24
33.56
66.44
Total
Alkalinity
mg/l
matters
% VS
% FS
25.22
74.78
Total
Alkalinity
mg/l
Date
02
pH
Temp,
o
C
%
Moisture
88.28
% TS
11.72
97
03
04
07
16
18
19
25
92.65
92.66
91.88
92.24
91.11
92.16
91.48
7.35
7.34
8.12
7.76
8.89
7.84
8.52
36.70
33.67
36.73
45.65
33.84
37.45
34.32
63.30
66.33
63.27
54.35
66.16
62.55
65.68
Date
02
03
04
07
16
18
19
25
pH
Temp,
o
C
%
Moisture
% TS
91.43
95.83
8.57
4.17
91.73
90.98
91.00
91.04
8.27
9.02
9.00
8.96
Composition of
solid matters
% VS
% FS
43.49
56.51
32.79
67.21
34.05
65.95
41.79
58.21
42.72
57.28
40.61
59.39
40.63
59.37
37.88
62.12
Total
Alkalinity, mg/l
98
Date
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Volume, m3/d
45.750
43.750
39.500
20.000
28.150
30.250
32.500
41.750
25.750
27.500
20.500
19.000
18.000
19.250
17.500
17.000
20.000
17.500
15.000
21.000
21.125
21.000
23.00
18.250
23.750
23.500
17.500
24.250
23.750
24.000
Composition
% CO2
-
% H2 S
-
99

biomethanation of fleshings and sludge from

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