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PUNCAK NIAGA SDN BHD ( 416087-U )
Transcript of PUNCAK NIAGA SDN BHD ( 416087-U )
PUNCAK NIAGA SDN BHD ( 416087-U )
INTRODUCTION TO PUNCAK NIAGA (M) SDN BHD
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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
SECTION A: COMPANY’S PROFILE
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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.
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PNHB CORPORATE STRUCTURE
PNHB
PUNCAK NIAGA (M) SDN BHD
(PNSB)
100%SYARIKAT
BEKALAN AIR SELANGOR SDN BHD (SYABAS)
70%
SINO WATER PTE
LTD
PUNCAK OIL & GAS SDN
BHD
PUNCAK RESEARCH
CENTRE SDN BHD
80% 100% 100%
PUNCAK NIAGA (INDIA)
SDN BHD
100%
COMPANY’S PROFILE
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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 - Executive DirectorMohd Amin
FINANCE DIVISIONHUMAN RESOURCE &
ADMINISTRATION DIVISIONCORPORATE SERVICES
DIVISION
OPERATION & MAINTENANCE DIVISION
ENGINEERING/PROJECT DEVELOPMENT DIVISION
COMPANY’S PROFILE
ORGANISATIONAL STRUCTURE
COMPANY’S PROFILE
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AREA OF OPERATIONS
Map of Peninsular Malaysia
SELANGOR
COMPANY’S PROFILE
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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
TOTAL 33 4,476
COMPANY’S PROFILE
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DAM OPERATOR IN SELANGOR
PNSB also operates three (3) dams in Selangor since 1995 as a good will gesture:
Sg Langat Dam• Earth-fill dam• 61 M high• 37,489 ML storage (7,740
MG)
Klang Gates Dam• Concrete dam• 37 M high• 32,013 ML storage (7,043
MG)
Tasik Subang Dam• Earth-fill dam• 9.1 M high• 3,532 ML storage (777
MG)
COMPANY’S PROFILE
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LOCATION OF WTPS & DAMS
COMPANY’S PROFILE
RESPONSIBILITY OF PNSB
DAM
To ensure sufficient Raw Water at all times
Raw WaterChanneledto Intake
TREATMENT PLANT
Flocculation, Coagulation & Chemical Dosing to produce Treated Water
BALANCING RESERVOIR
Water Stored before distribution
Treated Water Channeled to
Balancing Reservoir
PUMP HOUSE
Boost Pressure Before Distribution
SERVICE RESERVOIR
Water Stored Before Distribution
Water Distributed At Specified Pressure
Water Distributed To Consumers
BULK METERRESPONSIBILITY OF SYABAS
SECTION B :WATER TREATMENT
TECHNOLOGIES ADOPTED
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WATER TREATMENT TECHNOLOGIES ADOPTED
OVERVIEW OF TREATMENT PROCESSESOut 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:
Advance clarification using the Actiflo process
Advanced clarification using the dissolved air floatation (DAF) process
Advanced ultrafiltration membrane system
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Dam
River
Bandscreen
IntakeRaw Water Pump
RA
W
WA
TER
Aerator • Alum• Polymer
Flocculation TankSedimentation
Tank
Rapid Sand Filter• Chlorine• Fluoride• Hydrated Lime
Clear Water Tank Treated Water Pump
Balancing Reservoir
To Consumer
SCHEMATIC DIAGRAM OF FULL CONVENTIONAL WATER 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.
a. CONVENTIONAL TREATMENT PROCESS
TREATMENT TECHNOLOGIES
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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.
b. ADVANCED CLARIFICATION PROCESS USING ACTIFLO SYSTEM
TREATMENT TECHNOLOGIES
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b. ADVANCED CLARIFICATION PROCESS 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.
..cont’d
TREATMENT TECHNOLOGIES
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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.
c. ADVANCED CLARIFICATION PROCESS USING DAF SYSTEM
TREATMENT TECHNOLOGIES
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c. ADVANCED CLARIFICATION PROCESS USING DAF SYSTEM ..cont’d
TREATMENT TECHNOLOGIES
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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.
Ultra Filtration Membrane ModulesSungai Rumput WTP
d. ULTRAFILTRATION MEMBRANE SYSTEM
TREATMENT TECHNOLOGIES
SECTION C : CHALLENGES
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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.
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CHALLENGES
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
CHALLENGES
..cont’d
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CHALLENGES
Issues related to sludge treatment, handling and disposalMost of the WTPs operated by PNSB are equipped with sludge treatment facilities but difficult to find suitable disposal site.
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.
CHALLENGES
..cont’d
SECTION D : ACTION PLAN & ACTIVITIES
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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
SECTION E: OTHER INITIATIVES
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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
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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.
OTHER INITIATIVES
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PROCESS IMPROVEMENT INITIATIVES
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
OTHER INITIATIVES
Moringa oleifera, a potential natural coagulant being studied
Particle diffuser analyzer to be studies for possibility to optimize coagulation process
..cont’d
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OTHER INITIATIVES
PNSB has also embarked on the following activities to improve operational efficiency and services:
Energy conservation
Water safety plan
Asset management
OTHER INITIATIVES
SECTION F: SLUDGE HANDLING AND
MANAGEMENT
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SLUDGE TREATMENT FACILITIESNew 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.
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SLUDGE TREATMENT FACILITIES
WTP residue from filter backwashing or sedimentation tank
Recycle back to WTP
Pump sump
Thickener tank
Residue bin
Polymer mixing tank
Centrate
Wash water recovery tank
Decanter
Open Drain
Polymer Dosing Polymer Dosing
1
2
3
45
6
Supernatant
..cont’d
SLUDGE HANDLING & MANAGEMENT
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SLUDGE TREATMENT FACILITIES
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.
..cont’d
SLUDGE HANDLING & MANAGEMENT
SECTION G: EXPECTATIONS
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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
THANK YOU