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