Managing Demand and Optimizing Supply

Transcription

1 Managing Demand and Optimizing Supply Asia Water Conference, Kuala Lumpur 28 th March 2012 Ir Wan Mohd Zamri W Ismail Kota Bharu, Kelantan, MALAYSIA

2 ALLUVIUM:essentially of clay, sand and gravel, generally along coastal areas; where sand and gravel pre-dominates or where extensive aquifer are present, yield generally between cu. m/h. Brakish in certain localities. LIMESTONE: fractured and karstifed. Productive wells generally 50 cu. m/h. TUMPAT PASIR MAS KOTA BHARU SOUTH CHINA SEA SHALE, SANDSTONE, CONGLOMERATE (and their metamorphic equivalents) AND VOLCANIC: groundwater usually in joints or fractures, generally up to 30 cu.m/h. IGNEOUS ROCKS (mainly granitic) groundwater usually in joints and fractures or weathered zone, generally up to 20 cu. m/h. KEMAHANG GRANITE MACHANG BOUNDARY RANGE GRANITE PASIR PUTEH JELI TAKU SCHIST KUALA KRAI DABONG KELANTAN MAIN RANGE GRANITE DABONG

3 Managing Demand and Optimizing Supply Content Of Presentation o Introduction o Managing Water Demand : Physical Means Sociological Means Economics Means o Optimization Plan Network Management Energy Management Environmental Management Resource Management o Conclusion and Recommendation

4 Today. Is The Tomorrow You Worried About..Yesterday

5 IMPROVED WATER MANAGEMENT PROMOTES SUSTAINABLE DEVELOPMENT Water is a major limiting factor in the socio-economic development of a world with a rapidly expanding population. The UN Millennium Declaration addresses the importance of water and water related activities in supporting development and eradicating poverty especially in developing countries. Emphasizes conservation to stop unsustainable exploitation of water resources by developing water management strategies at the regional, national and local levels which promote both equitable access and adequate supplies.

6 Managing Water Demand

7 EXISTING CHALLENGES.. Uninterrupted water supply power breakdowns, polluted sources, pipe bursts, equipments failure Sufficient Pressure and Flow season High Quality - Pollution threats increasing High Water Use - higher standard of living, ignorance, lack of sensitivity What has been the impact?

8 FUTURE CHALLENGES.. Environmental requirements sustainable flow, protection from pollution, ecosystems complexity Climatic Changes - unpredictable seasons, much too extreme Health-related Quality- Complex Pathogens increasing Efficient Water Use - new water-saving devices, sensitive to water wastage Do you have plans for it? What will be the impact?

9 CLIMATE CHANGE SCENARIOS

10 WATER DEMAND MANAGEMENT (WDM)

11 WATER DEMAND MANAGEMENT (WDM)

12 BENEFITS OF WDM

13 BENEFITS OF WDM

14 METHODS OF WDM

15 Name of Pilot DMA NRW control (pressure management) Kemahang Supply Area Kemahang 3 Initial minimum night flow (l/s) 23.7 Current minimum night flow (l/s) 16.2 Saving (m3/d) 540

16 NRW control (Flow Control)

17 NRW control (Zoning District Metering Area)

18 ACTION PLAN OF WDM

19 ACTION PLAN OF WDM

20 Optimization Plan

21 A Holistic Optimizer Checklist Water quality issues Tariff Optimization Operation Electricity Demand charges (peak kw or kva) with realtime market requirements Treatment plant marginal cost for production, which can vary due to raw water quality, time of day etc Alternative pumping path options Non-linear pump efficiency, plus parallel pump efficiency at each pump station and whole system Solve all pump stations together, willing to sacrifice cost at one site if overall benefit is greater system-wide

22 KW $ / KWh Tariff Optimization Operation Plan Avoiding peak-hour tariffs Medium Size Electric Accounts 20,000 $ ,000 12,000 8,000 4,000 $ $ $ Time of the Day Load Electric Rates $-

23 Pumps operate more efficiently

24 OPTIMIZATION OF WATER SUPPLY 1.Network Management 2.Energy Management 3.Environmental Management 4.Resource Management

25 OPTIMIZATION OF WATER SUPPLY 1.Network Management a) Optimum Design limit and estimations b) Reduce System Losses c) Optimize Storage Tank Capacities d) Reduce Pumping System or booster stations

26 OPTIMIZATION OF WATER SUPPLY 2. Energy Management a) Improve Power/Voltage Quality b) Select Best Switching Gears c) Retrofit with Energy-saving devices e.g VSD, Controller etc d) Select Best Efficient Motors & Pumps e) Reduce System Losses

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28 OPTIMIZATION OF WATER SUPPLY 3. Environmental Management a) Improve Raw Water Quality e.g HCW b) Select Best Design Suitability e.g no sludge treatment, non chemical WTP c) Retrofit with environmental-friendly devices e.g low-noise equipments. d) Select Construction Plan with Low Impact on Environmental e.g No Dams Plan, Natural Sub-storage Reservoirs

29 HORIZONTAL COLLECTOR WELL (HCW) RIVER

30 OPTIMIZATION OF WATER SUPPLY 4. Resources Management a) Conjunctive Use b) Identify Regional & sub-regional Water Supply Factors & Problems c) Evaluation of Option Matrix to determine the best alternative (demand, location, operation and technology) d) Cost Effective

31 SHOWCASE : JELI WTP, KELANTAN Horizontal Collector Well (HCW) Variable Speed Drive (VSD) High Efficiency Pump & Motor Self Backwash Filter

32 CONCLUSION : ACT NOW! OUR CHILDREN WILL HAVE TO PAY FOR WHAT EVER WE DO TODAY. OPTIMIZE AND CONSERVE ARE THE KEY FACTOR TO SUSTAINABLE WATER SUPPLY. IMPLEMENT WATER CONSERVATION (WC) AND INTEGRATED RESOURCE MANAGEMENT (IRM) PROGRAMMES IN YOUR AREA.

33 TERIMA KASIH THANK YOU THE END