Proposed Rainwater Harvesting System for The Rest and Service Area by. Ir Ismail Abd Rahman (JKR HQ) Ir Ellias Saidin (Perunding Ikatan)

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1 Proposed Rainwater Harvesting System for The Rest and Service Area by Ir Ismail Abd Rahman (JKR HQ) Ir Ellias Saidin (Perunding Ikatan)

2 The Project is one of the component in the East Coast Expressway 2 which consists of the construction of expressway from Jabor in Kemaman to Chendering in Kuala Terengganu

3 MISSION STATEMENT EAST COAST EXPRESSWAY 2 Taking Pride in its dedication to deliver first class road infrastructures, the Public Works Department Malaysia (JKR) is fully committed in ensuring a truly pleasurable and memorable traveling experience for every road user driving along the East Coast Expressway (ECE)

4 SELAMAT DATANG HENTIAN REHAT JABOR KEMAMAN TERENGGANU

5 PROJECT COMPONENTS Food Court & Fruit Stall Shops, offices Fast Food Outlet Toilet Toilet Surau Surau Elevated Water Tank TNB Sub Station Refuse Bin Carp park - 30 units - 1 block - 1 block - 1 blocks (Male) - 1 block (Female) - 1 block (Male) - 1 block (Female) - 1 Unit - 1 Block - 1 block - Light & Heavy Vehicle

6 LOCATION LOCATION PLAN

7 PROJECT BRIEF Managed by JKR Architectural Concept is Minangkabau Terengganu Rest and Service Area only at one side of the Expressway Users from both ways will be required to exit the same route after taking break at Rest and Service Area Dedicated access for the local people introduced Using Industrialized Building System (IBS) Components Rainwater Harvesting System for toilet flushing introduced

8 CRITERIA GREEN BUILDING INDEX (GBI) the rating system will provide opportunity to design and construct green, provide energy savings, water savings, a healthier indoor environment, better connectivity to public transport and the adoption of recycling and greenery for their projects.

9 GREEN BUILIDING INDEX RATING (extract from slide SEMINAR ON GREEN BUILDING INDEX MALAYSIA 9th April 2009, JKR Kuala Lumpur By Ir CHEN Thiam Leong

10 (extract from slide SEMINAR ON GREEN BUILDING INDEX MALAYSIA 9th April 2009, JKR Kuala Lumpur By Ir CHEN Thiam Leong

11 Future Expansion Parking Parking Kuantan-KT Kuantan-KT Route Route Rest & Service Area LAKE From Kuantan Parking MIEL Recreational Area Parking KT- Parking KT- Kuantan Kuantan Route Route Exit to Kuala Terengganu Future Expansion To Kuantan EAST COAST EXPRESSWAY 2 SITE PLAN From Kuala Terengganu N KEY PLAN P R O P O S E D R E S T A N D S E R V I C E A R E A P E R A S I N G K E M A M A N T E R E N G G A N U I N CAWANGAN ARKITEK

12 BUILDING COMPONENT Lorry Parking Elevated Water Ttank TNB Sub Station SURAU (M/F ) Toilet (M/F ) Children Playground Shops & Offices Fast Food Outlet Foodcourt Fruit Stall Heavy Vehicle parking MIEL Parking PELAN TAPAK P R O P O S E D R E S T A N D S E R V I C E A R E A P E R A S I N G EAST COAST HIGHWAY PHASE 2, TERENGGGANU DARUL IMAN CAWANGAN ARKITEK

13 WHERE RAINWATER GOES

14 RWH IN MALAYSIA After 1998 drought, study was conducted on alternative source of supply is carried out In 1999 guidelines for installation a rainwater policy in Malaysia Purpose to reduce dependence on treated water 2004 NARHRIM established 2006 mandatory to implemented RWH to large building, school and bungalow

15 RWH IN MALAYSIA

16 BENEFIT OF USING RAINWATER Reduce the demand of domestic supply Overcoming shortage of water Reduction of Peak Discharge Reduction of water bills

17 Rainwater System Components Roof Surface Catchments Conveyance gutters and down pipes Filtering - First flush Rainwater storage tank Booster pump Flushing Tank Distribution via plumbing to toilets Water Supply Topping up by Water Authority

18 Water Demand for Toilet Flushing Item Usage (liters) 82 nos. WC 180 l/day Average Daily use (liters) 15,000 l/day 10 nos. urinal 180 l/day 1800 l/day Total 16,800 l/day

19 Kemaman Rainfall Data from 1986 to 2006 Average Monthly Rainfall Annual Rainfall No. Month Total (mm) No. Year Total (mm) 1 January February March April May June July August September October November December Average annual rainfall

20 Potential Rainfall Capture Roof Area = 900 m2 Kemaman Annual Rainfall = 3355 mm/year Potential capture monthly = 900 x 3355/12 = 252 m3 = 8400 liters/day POTENTIAL WATER CAPTURED PER DAY IS 8400 LITRES/DAY

21 Roof Surfaces Catchments

22 Flushing Tank Roof surface catches rainwater Transport to sump via gutter and down water pipe Rainwater pumped to Flushing Tank Rainwater Tank Roof Surfaces Catchments

23 FIRST FLUSH SYSTEM During the first moments of a rain storm pollen, mold spoors and other contaminants are washed off a rooftop and into its drainage system. First Flush device to remove this foul water it will be washed into a rainwater harvesting system.

24 FIRST FLUSH DIVERTER Prevents the first most contaminated rainwater components to improve quality and safety Help extend the life of pumps (used to distribute rainwater for use)and internal appliances (such as hot water systems, washing machines, dishwashers, etc) Reduce tank maintenance

25 FILTER SUMP COLLECTION To collect rainwater First flush instilled inside rainwater down pipe Rainwater filtered by stainless steel screen

26 RAINWATER TANK

27 FLUSH VALVE TANK Topping up Supply Rainwater Supply Flush Valve Tank

28 Rainwater supply only for toilet flushing Tests to be conducted to check the quality of rainwater Flush valve tank to supply rainwater for toilet flushing Topping up supply from elevated water tank during dry season or no rainwater

29 RAINWATER FOR TOILET FLUSHING Toilet

30 CONCLUSION JKR is moving towards implementation sustainable design First JKR Project rainwater harvesting in rest and service area No extensive treatment required Reduce water demand/consumption Compliance Green Building Index

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