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Sustainable Water Resource Managementin Singapore

Lau Yew Hoong

PUB, Singapore

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Singapore

1.6 mil m3/day

(approx 600 Olympic sizeswimming pools)

2,400 mm4.7 mil

700 km2

Population

Average Water Demand

Average Annual Rainfall

Land Area

Country

Information

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Sustainable water management

Conserve Water

Value Water Enjoy Water

Water for All Conserve, Value, Enjoy

Local catchment

Imported water (Johor) NEWater Desalinated water

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PUB manages the complete water cycleFrom sourcing, collection, purification and supply of drinking water, to treatment of used water and

turning it into NEWater, drainage of storm water

Rain Sea

Indirec tPotableUse

Direc t Non-Potable Use CollectionCollection

ofof

Used Water inUsed Water in

SewersSewers

TreatmentTreatment

ofof

Used WaterUsed Water

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PunggolPunggol

Legend

Unprotected Water Catchment

Protected Water Catchment

Proposed Water Catchment

ProtectedCatchmentUnprotected

Catchment UrbanStormwaterCollection

System

o Half of Singapore is a lrea dy wa ter c a tchment

o Ca tc hment a rea will be inc rea sed from ha lf to

two-thirds by 2011

Ma c Ritc hie Reservoir

Kranji Reservoir

Bed ok Stormwa ter Pond

Water from Local Catchment

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MarinaChannel

Sea

Marina

South

MarinaEast

3-in-1 Marina Barrage

Water supply Flood Control Lifestyle attraction

Crea ting a reservoir in the

c ity c entre of Singapore

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Marina Barrage

Creating a Reservoir in the City

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Marina Barrage

New Lifestyle Attraction at Downtown

Formula One Boa t Rac es

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Key Features of the Marina Barrage

Drainage PumpsCrest Gates

Reservoir

Sea

Boat Hoist Facility

Exhibition Gallery/F&B outlets

Electrical Building

Structured Turf Green Roof

Solar Panels

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Solar Panels at the Marina Barrage

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NEWater

Seletar5 mgd2004

Kranji9 mgd (Jan 2003)

Bedok6 mgd (Jan 2003)

Ulu Pandan

32 mgdMar 2007

Changi5th

NEWaterPlant to becompleted

in 2010

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Collection of used water (100% sewered)

Jurong WRP

Ulu Pandan WRP

Kranji WRP

Seletar WRP

Kim Chuan WRP

Bedok WRP

Water Reclamation Plants

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Used Water Treatment Schematic Flow Diagram

Coarse

Screen

Inlet

Pump

FineScreen

Vortex GritChamber

Grit

Primary SettlementTank AerationTank Final SettlementTank

ThickeningCentrifuge

Digester

Dual FuelGenerator

DewateringCentrifuge

DewateredSludge

Storage Bin

Disposal

Returned ActivatedSludge

ToSea

Primary

SludgeWaste Activated

Sludge

ThickeningCentrate

(To Inlet Works)

Primary & ThickenedSludge

BioGas

DigestedSludge

DewateringCentrate

(To Inlet Works)

Inlet Works

Sludge dryer(CWRP only)

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Desalinated Water

To augment and diversify our waterresources

SingSpring Pte. Ltd., under a 20 year DBOOarrangement with PUB

One of the largest seawater RO plants

Supply 30 mgd for 20 years

Opened on 13 Sep 05

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Sustainable water management

Conserve Water

Value Our Waters Enjoy Our Waters

Water for All Conserve, Value, Enjoy

Local catchment

Imported water (Johor) NEWater Desalinated water

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UFW Control

Measures

To Control

UFW

LeakageControl

AccurateMetering

NetworkManagement

Stric tLegislation

Water Conserva tion

Water Demand Management

0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0

10.0

20071990

4.4

Percentage WaterConservation

Strategy

PricingReflect the strategic

importance andscarcity value of

water

Voluntary3P approach

Promoteownership of water

conservation

Mandatory

Cut down on excessiveflow and wastage ofwater

Conserving our Waters

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Achieved:

Per capita domestic consumption fell to158 litres per day in 2006.

New target:

To further lower to 155 litres per day by

2012

Policies and programmes to achievetarget

Water Efficient Labeling Scheme

Mandatory installation of dual-flushlow-capacity flushing cisterns

10-Litre Challenge

Water Volunteers Group

176

172

170 170

166165 165 165 165 165

162

160

158

155

160

165

170

175

180

1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006

P

erCapitaDom

esticConsum

ption(lit/day)

Per Capita Consumption of water

The total % of Singapores unaccounted for water hasdecreased from 9.5% in 1990 to 4.7% in 2005.

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Valuing and Enjoying our Waters

ABC Water TV ShowIntroduced on Channel 8

2007

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The Blue Map of Singapore

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.

ABC Waters ProgrammeABC Waters Programme is about:ABC Waters Programme is about:

A. ACTIVE

New recreational spaces

B. BEAUTIFUL

Integration of waters with urban landscape

C. CLEAN

Improved water quality

Turn Singapore into a city of gardens and waterPrime Minister Lee Hsien Loong,At ABC Waters Public Exhibition Opening(Feb 07)

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Kolam Ayer Project - Before

Existing

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Existing

Proposed

Kolam Ayer Project - After

Proposed

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Reaching out to the young

PURE, a lifestyle street magazine onwater was launched to reach out to theyouth and get them interested in waterissues

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Enjoy Water

Cultivate a strong sense of bonding

and ownership of water through water-

based activities

Through the opening up of our reservoirs,

waterways & encouraging recreational use

of them

- Kayaking centres at MacRitchie, Bedok, Lower

Seletar Reservoirs, Jurong Lake etc

- Upgrading of facilities at MacRitchie and Bedok

Reservoirs

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Thank You