MBTF Impression - RCL Milieutechniek

Milieutechniek
Leeuwerik 11
8532 AW Lemmer
Telefoon 0514-533746
Telefax 0514-534003
E-mail: [email protected]
Impressie: Moving Bed Trickling Filter
19 februari 2006
MBTF
Datum 18 februari 2006
Versie 4
© RCL Milieutechniek
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RCL Milieutechniek
Content
1
INTRODUCTION MOVING BED TRICKLING FILTER (MBTF) ......................... 2
2
PRINCIPLE OF THE MBTF. ....................................................................................... 4
3
PRACTICAL APPLICATION(S) .................................................................................. 5
4
THE MBTF PILOT INSTALLATION. ......................................................................... 7
5
CONTACT ........................................................................................................................ 8
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Introduction to Moving Bed Trickling Filter (MBTF)
Moving Bed Trickling Filter enjoys many technical and economical advantages.
Moving Bed Trickling Filter enjoys many
technical and economical advantages.
The MBTF is a biological filter that can be used for
treatment of both waste water and air. A unique
feature is the ability to treat waste water and air
simultaneously: a separate investment for air
treatment equipment is unnecessary, whilst the
filter costs are compensated by the reduced waste
water charges. Thereby producing a return-oninvestment. But even if you wish to treat "only"
waste water or "only" air, this filter offers attractive
advantages and makes economic sense.
Earn money with fresh air
Unfortunately, the treatment of waste water and
polluted air and other gases always costs money.
Luckily, the costs of water treatment are
compensated for by reduced charges and lower
waste removal costs. Previously the costs for
treatment of polluted air and other gases could not
be compensated, however: the treatment is
compulsory, and there are no "advantages" in the
form of lower taxes. The combined treatment of
water and air/gas is therefore economically very
attractive. Combined treatment, eliminates the need
to invest in separate air/gas treatment, whilst the
costs of combined treatment are usually more than
compensated for by the waste water treatment
advantages.
High capacity
Compared to other systems for treatment of air/gas or waste water, the MBTF is
characterised by a high efficiency and high capacity. This results in a lower
investment. Depending on the concentrations and flows, a reactor of 4m diameter
could treat a waste gas flow of up to 30,000 Nm 3 /h, while simultaneously treating
20 m 3 /h of waste water. For highly concentrated flows or very strict effluent
requirements other G/L ratios are feasible.
Furthermore the MBTF has proven to be relatively insensitive to suspended solids
and fats in the waste water stream. This usually makes the use of coagulants or
flocculants in the pre-treatment unnecessary.
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Principle of the MBTF.
Principle
The MBTF comprises a cylindrical tank filled with
plastic spheres.
The spheres, which are made of durable material
and specially designed to prevent bridge-forming, act
as a carrier material for micro-organisms. The waste
water is fed into the filter at the top, whilst the air
flows through the filter parallel or counter-current to
the water. Intensive mixing takes place in the filter,
and the contaminations in both water and air are
broken down by the micro-organisms.
A special feature is periodical removal and cleaning
of a number of the micro-organism-carrying spheres
from the bottom of the filter. The micro-organisms are
removed from the spheres and thickened to a
compact sludge in the cone of the filter. The cleaned
spheres are returned to the top of the filter. This
unique integrated cleaning procedure makes it
possible to control the amount of micro-organisms
present and removes all risk of the filter clogging.
The advantages at a glance
•
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•
•
•
•
•
•
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small footprint
non-clogging
high separation efficiency
low energy consumption
universally applicable for air and/or water treatment
integrated sludge separation and thickening
easy to operate
low operating and investment costs
No bridge-forming
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Practical application
3
The installations shown below treat airflow of 4.000 to 30.000 Nm /h, simultaneously with a waste
3
water flow of ± 40 m /h. The average removal efficiency of the waste water based on: COD ± 90 %
and Nkj 50-70 %.
Application in the chicken processing
industry
Dimensions:
Height
Diameter
Footprint
Carrier
:17 m
:4 m
2
:12,5 m
3
:100 m
Water & air treatment
Application in a poultry abattoir
Dimensions:
Height
Diameter
Footprint
Carrier
:17 m
:5 m
2
:19,6 m
3
:150 m
Water & air treatment
Air supply is then treated in the MBTF.
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Application in the fish processing
industry
Dimensions:
Height
Diameter
Footprint
Carrier
:17 m
:4 m
2
:12,5 m
3
:100 m
Water & air treatment
Air supply is then treated in the
MBTF.
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Application in the
Chemical industry
Dimensions:
Height
Diameter
Footprint
Carrier
:15 m
:4 m
2
:12,5 m
3
:60 m
Air treatment
Removal of VOC and odour components produced
during PMMA production.
MBTF replaces a Biotrickling unit
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The MBTF Pilot installation.
The pilot installation
The picture on the left clearly shows the periodical
removal and cleaning of the carrier spheres. This
is defined by the shading of the biological layers.
This ensures that clogging – irrespective of the
load – does not occur.
Dimensions
Height
Diameter
Footprint
Carrier
: 2 meter
: 0,5 meter
2
:0,19 m
3
:0,45 m
Pilot installation in operation
The installation is a completely automatic system
controlled by a PLC.
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Contact
Interested?
For any and all further information please contact:
.
Jan van der Herberg
Dennis van der Herberg
Tel: 0514 533746
Fax: 0514 534003
E-mail: [email protected]
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