Role and Responsibility of Puncak Niaga (M) Sdn Bhd as a Water

Transcription

PUNCAK NIAGA SDN BHD ( 416087-U )
INTRODUCTION TO PUNCAK NIAGA (M)
SDN BHD
OUTLINE OF PRESENTATION
SECTION
TITLE
A
COMPANY’S PROFILE
B
WATER TREATMENT TECHNOLOGIES ADOPTED
C
CHALLENGES
D
ACTION PLAN AND ACTIVITIES
E
OTHER INITIATIVES
F
SLUDGE HANDLING AND MANAGEMENT
G
EXPECTATIONS
2
SECTION A:
COMPANY’S PROFILE
COMPANY’S PROFILE
PUNCAK NIAGA (M) SDN BHD (PNSB)

A wholly-owned subsidiary of Puncak Niaga Holdings Bhd

Authorised share capital of RM 204,800,000.00 with a paid-up
capital of RM 14,800,000.00.

Second largest water supply company in Malaysia in terms of
total designed production capacity of 1,930 MLD.

Main activities in the financing, planning, design, construction,
management, operation and maintenance of water supply
production and distribution infrastructures locally and overseas.

Financial capability to undertake traditional Build-only and
Design-Build turnkey contracts, Build-Operate-Transfer (BOT)
and privatization concessions, encompassing water intake,
treatment, transmission and distribution, and consumer services
/ billings.
4
COMPANY’S PROFILE
PNHB CORPORATE STRUCTURE
PNHB
100%
70%
PUNCAK NIAGA
(M) SDN BHD
(PNSB)
SYARIKAT
BEKALAN AIR
SELANGOR SDN
BHD (SYABAS)
SINO
WATER PTE
LTD
PUNCAK
NIAGA (INDIA)
SDN BHD
PUNCAK OIL
& GAS SDN
BHD
80%
100%
100%
PUNCAK
RESEARCH
CENTRE SDN
BHD
100%
5
COMPANY’S PROFILE
ORGANISATIONAL STRUCTURE
BOARD OF DIRECTORS OF PUNCAK NIAGA (M) SDN BHD
Y.Bhg Tan Sri Rozali Ismail
-
Exec. Chairman
Y.Bhg. Dato’ Hashim Mahfar
-
Managing Director
Y. Bhg Dato’ Syed Danial Syed Ariffin
-
Chief Operating Officer
Mr. Danny Ng Wah Tar
-
Executive Director
Mdm. Tan Bee Lian
-
Executive Director
En Nasir Khan Illadad Khan
-
Executive Director
Ir. Tan Hui Kuan
-
Executive Director
Ir. Ooi Cheng Swee
-
Executive Director
Y.Bhg Datuk Mohd Yunus
Mohd Amin
-
Executive Director
FINANCE DIVISION
HUMAN RESOURCE &
ADMINISTRATION DIVISION
OPERATION &
MAINTENANCE DIVISION
CORPORATE SERVICES
DIVISION
ENGINEERING/PROJECT
DEVELOPMENT DIVISION
6
COMPANY’S PROFILE
COMPANY’S PROFILE
AREA OF OPERATIONS
Map of Peninsular Malaysia
SELANGOR
8
COMPANY’S PROFILE
WATER OPERATORS IN SELANGOR
There are 33 water treatment plants in Selangor, Federal Territories
of Kuala Lumpur and Putrajaya.
No
WTP Operator
No. of WTPs
Total Design
Capacity (MLD)
1
Syarikat Pengeluar Air Sungai
Selangor Sdn Bhd (SPLASH)
3
2,000
2
Puncak Niaga (M) Sdn Bhd
(PNSB)
29
1,930
3
Konsortium ABASS Sdn Bhd
1
546
33
4,476
TOTAL
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COMPANY’S PROFILE
DAM OPERATOR IN SELANGOR
PNSB also operates three (3) dams in Selangor since 1995 as
a good will gesture:
Sg Langat Dam
Klang Gates Dam
Tasik Subang Dam
• Earth-fill dam
• Concrete dam
• Earth-fill dam
• 61 M high
• 37 M high
• 9.1 M high
• 37,489 ML storage (7,740
MG)
• 32,013 ML storage (7,043
MG)
• 3,532 ML storage (777
MG)
10
COMPANY’S PROFILE
LOCATION OF WTPS & DAMS
11
RESPONSIBILITY OF PNSB
Treated Water Channeled to Balancing Reservoir
Raw Water
Channeled
to Intake
DAM
TREATMENT PLANT
To ensure sufficient Raw Water at all times
Flocculation, Coagulation & Chemical Dosing to produce Treated Water
BALANCING RESERVOIR
Water Stored before distribution
BULK METER
RESPONSIBILITY OF SYABAS
Water Distributed At Specified Pressure
Water Distributed To Consumers
SERVICE RESERVOIR
PUMP HOUSE
Water Stored Before Distribution
Boost Pressure Before Distribution
SECTION B :
WATER TREATMENT
TECHNOLOGIES ADOPTED
WATER TREATMENT TECHNOLOGIES
ADOPTED
OVERVIEW OF TREATMENT PROCESSES

Out of 29 nos. of WTPs operated by Puncak Niaga, 17 nos.
adopted the fully conventional water treatment process.

A few WTPs adopted advanced technology in the treatment
process such as listed below:
¾ Advance clarification using the Actiflo process
¾ Advanced clarification using the dissolved air floatation (DAF)
process
¾ Advanced ultrafiltration membrane system
14
TREATMENT TECHNOLOGIES
a. CONVENTIONAL TREATMENT PROCESS
The majority of the WTPs operated are using this system. The raw water is
treated through a series of process such as aeration, chemical mixing,
coagulation, flocculation, clarification, filtration and finally post chemical
addition prior to supplying to consumers.
Bandscreen
Raw Water
Pump
Dam
Intake
RAW
WATER
River
Aerator
Balancing
Reservoir
• Alum
• Polymer
Rapid Sand Filter
Flocculation Tank
Sedimentation
Tank
• Chlorine
• Fluoride
• Hydrated Lime
To Consumer
Clear Water Tank
Treated Water Pump
SCHEMATIC DIAGRAM OF FULL CONVENTIONAL WATER TREATMENT PROCESS
15
b. ADVANCED CLARIFICATION PROCESS
USING ACTIFLO SYSTEM
2. High speed microsand settling process (Actiflo System)
•
Full conventional treatment with compact state of the art water clarification
system, introduced in SSP2 WTP under the BOT project.
•
Design capacity of the plant is 950 MLD and commence operation in 1998.
•
This clarification system has short retention time of less than 30 minutes
due to its high settling rate and thus reduce plant start-up time.
•
This system is able to consistently produce high quality of treated water
despite fluctuation of raw water quality.
16
b. ADVANCED CLARIFICATION PROCESS
..cont’d
USING ACTIFLO SYSTEM
With the designated capacity of 950 MLD, the Sungai Selangor Phase 2
WTP is one of the largest WTP in Malaysia and the first WTP in Malaysia
and South East Asia using the Actiflo clarification process.
17
c. ADVANCED CLARIFICATION PROCESS
USING DAF SYSTEM
3. Dissolved Air Floatation System (DAF)
•
Introduced in Wangsa Maju WTP with design capacity of 45 MLD and
commenced operation in July 1998.
•
The available space for plant construction was limited. Hence this system,
which occupy small footprint was preferred.
•
System effective for removal of high organic matters.
•
System is suitable for raw water with low colour and turbidity especially
from dam.
•
Wangsa Maju WTP is the one and only in Selangor.
18
c. ADVANCED CLARIFICATION PROCESS
..cont’d
USING DAF SYSTEM
19
d. ULTRAFILTRATION MEMBRANE SYSTEM
Very popular in developed country namely United States, Europe and Japan.
Introduced at two (2) partial treatment plant namely Kepong and Sungai Rumput
since October 2007.
With the membrane system, both WTPs have not been shutdown for reason due
to raw water quality problem.
Sungai Rumput WTP
Ultra Filtration Membrane Modules
20
SECTION C :
CHALLENGES
CHALLENGES
PNSB’s obligation according to Concession Agreements :

Meet the Designated Quantity & no interruption of supply to
consumers.

Meet the Designated Quality based on National Drinking Water
Standard issued by Ministry of Health Malaysia.

Full compliance to statutory requirement including Factory &
Machinery, Environment Quality & Occupational Safety and
Health Acts.
22
CHALLENGES
CHALLENGES
..cont’d
Challenges encountered to meet the
contractual obligations are:

Wide range of WTP treatment processes and varying sizes

WTPs location are scattered throughout Selangor & Kuala Lumpur
posing logistics challenges

Varying raw water quality throughout Selangor’s river basins

Increasing pollution sources which had led to degradation of raw water
quality

Ageing assets that require extensive maintenance which involves
periodic replacement and refurbishment

Prioritizing the rehabilitation works and asset replacement in
consideration of limited funds

Compliance to new statutory requirement or amendment to the existing
regulations
23
CHALLENGES
CHALLENGES

..cont’d
Issues related to sludge treatment, handling and disposal
¾ Most of the WTPs operated by PNSB are equipped with sludge
treatment facilities but difficult to find suitable disposal site.
¾ Under the revised Environmental Quality Act (EQA) 1974;
Environmental Quality (Schedules Waste) Regulations 2005, the
sludges from the WTPs with residual aluminium regardless of its
concentration are categorised as scheduled waste.
24
SECTION D :
ACTION PLAN & ACTIVITIES
ACTION PLAN & ACTIVITIES
In order to meet the challenges as well as meeting the contractual
obligations and adherence to the Environment and Safety and Health
regulations, action plan taken by PNSB which includes capital
investment and asset replacement programme is as summarised:

Capital works to upgrade quantity and quality

Raw water surveillance system

Schedule and breakdown maintenance

Installation of sludge treatment facilities

Replacement of old and aged equipment
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SECTION E:
OTHER INITIATIVES
OTHER INITIATIVES
For efficient and effective operation and management of
WTPs, best practices incorporated by PNSB includes :

Organization structure

Establishing procedure and manual

Staff training

Maintenance programme

Water quality monitoring

Safety and health

River water monitoring and surveillance system

On-line monitoring and automation system

Security system
28
OTHER INITIATIVES
PROCESS IMPROVEMENT INITIATIVES
Besides the normal operation and maintenance of WTPs,
PNSB also conducts studies for improvement of treatment
process and water quality.
Some of the studies conducted internally are:

Raw water treatability and introduction of pre-treatment at Sg
Serai WTP as a stop gap measure pending upgrading to full
treatment plant.

Coagulation process optimization through installation of
streaming current detector at 3 WTPs.

Study on use of sodium aluminosilicate for ammonia removal at
WTPs facing ammonia pollution problem

Alternative chemical studies to reduce high coagulant
consumption and residual aluminium at Sg. Sireh WTP.

Alternative coagulant studies and product evaluation to
determine applicability at WTPs.
29
OTHER INITIATIVES
PROCESS IMPROVEMENT INITIATIVES
..cont’d
PNSB supported and participated in the jar test study on PSI
by JICA under the coordination of SPAN.
Studies conducted with collaboration with local universities and
international research organization include :

Alternative coagulants for water treatment plants

Optimization of coagulation process
Moringa oleifera, a potential natural
coagulant being studied
Particle diffuser analyzer to be studies for
possibility to optimize coagulation process
30
OTHER INITIATIVES
OTHER INITIATIVES
PNSB has also embarked on the following activities to improve
operational efficiency and services:

Energy conservation

Water safety plan

Asset management
31
SECTION F:
SLUDGE HANDLING AND
MANAGEMENT
SLUDGE TREATMENT FACILITIES
New WTPs built after 1990s’ are equipped with sludge treatment
facilities

SSP2 WTP, 950 MLD (1996 – 2000) – sludge lagoon

Wangsa Maju WTP, 45 MLD (1998) – sludge treatment facilities
Sludge treatment facilities were constructed at 16 WTPs in
2007/2008 under capex works.
Sludge treatment facilities installed at WTPs comprises of:

Thickener

Mechanical dewatering system

Sludge cake collection system

Water recovery system
The sludge sediments from the filters and clarifiers are thickened and
dewatered to produce solid sludge before they were disposed off at
prescribed premises.
33
SLUDGE HANDLING & MANAGEMENT
..cont’d
Polymer mixing tank
2
WTP residue from
filter backwashing or
sedimentation tank
Polymer Dosing
Polymer Dosing
1
4
5
Decanter
3
Pump sump
Residue
bin
Thickener tank
Centrate
Recycle back to WTP Supernatant
6
Wash water
recovery tank
Open Drain
34
SLUDGE HANDLING & MANAGEMENT
..cont’d
The effluent discharged has to meet the required standard issued by
the Department of Environment.
Issue remain unresolved is difficulty in finding suitable sludge
disposal sites.
The total sludge production is estimated about 700 tonne/day.
35
SECTION G:
EXPECTATIONS
EXPECTATIONS FROM THE TRAINING
COURSE
To learn more about alternative coagulant, specifically
polysilicato-iron coagulant (PSI) and its application at WTPs in
Japan
To learn about sludge treatment, handling and management at
WTPs in Japan
To learn about usage of WTP sludge in various fields
37
THANK YOU