Singapore's Response to Sanitation and Water Challenges


Published on

EASAN : Singapore's Response to Sanitation and Water Challenges

No Downloads
Total views
On SlideShare
From Embeds
Number of Embeds
Embeds 0
No embeds

No notes for slide

Singapore's Response to Sanitation and Water Challenges

  1. 1. Singapore’s Response to Sanitation and Water Challenges Ooi Kian Eng Director PUB, national water agency of Singapore Ministry of the Environment and Water Resources 1
  2. 2. Singapore’s Water Challenges Land Area: ~700 sqkm Population: 5 million Rainfall: 2.4m/year Water Demand: 300mgd 2
  3. 3. Clear and committed vision, and strong willfrom political leaders “The sustainable development of cities is one key challenge of our time. Good Governance is vital in tackling this challenge, and achieving the right balance between economic growth, environmental protection and high quality of life…..” Mr Lee Hsien Loong, Prime Minister 3
  4. 4. Population Hygiene Achieved 100% Sanitation by 1997 (000)500045004000350030002500 1997: 100% modern sanitation20001500 1987: Nightsoil1000 phased out 500 0 1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 Year Population(000) Population served Population served by night soil by moden sanitation 4
  5. 5. Strict Regulation through Legislation and Enforcement 5
  6. 6. Leveraging on innovations and adopting new water technology 6
  7. 7. Closing the Water LoopFrom sourcing, collection, purification and supply of drinking water, to treatment of usedwater and turning it into NEWater, drainage of storm water treatment stormwater rain Rain sea sea Sea of management used water reclamation of used water (NEWater) collection desalination collection of rainfall of used water in drains & in sewers reservoirs supply of treatment of water to the raw to potable population & water industries 7
  8. 8. Sustainable Water Management “Water for All” “Conserve, Value, Enjoy” 4 National 3P Approach Taps Supply Demand 8
  9. 9. 9Water for All
  10. 10. Local Water Catchments MacRitchie Reservoir Protected Punggol Unprotected Catchment Urban Catchment Stormwater Kranji Reservoir Collection System Legend Unprotected Water Catchment Protected Water Catchment New Water Catchment Bedok Stormwater Pond• Two-thirds of Singapore’s land area is water catchment, with longer term plan to increase it to 90% 10
  11. 11. Second National Tap Imported Water from Johor, Malaysia • Two water agreements with Johor: one expired in 2011, the other will expire in 2061 11
  12. 12. Third National Tap NEWater Kranji Plant NEWater meets 30% of Singapore’s water needs 17 mgd Changi Plant 50 mgd Bedok Plant Legend Ulu Pandan NEWater pipeline Plant NEWater Plant 18 mgd 32 mgd Service Reservoir 12
  13. 13. 4) 3-Steps NEWater Treatment Process to Drinking Water Quality Reverse Osmosis Secondary Microfiltration / Treated Ultrafiltration Treated Used Water Effluent 13 NEWater Ultraviolet Disinfection
  14. 14. NEWater NEWater Visitor Centre Branding as ‘NEWater’Garnering Public Acceptance 14
  15. 15. Endorsement by leaders• Top government officials including the then Prime Minister of Singapore showed their support by drinking NEWater publicly 15
  16. 16. Fourth National Tap Desalinated Water  To augment and diversify our water resources  SingSpring Pte. Ltd., under a 20 year DBOO arrangement with PUB  One of the largest seawater RO plants  Supply of 30 mgd for 20 years  Opened on 13 Sep 05 16
  17. 17. 3-in-1 Marina Barrage Flood Control Water supply Lifestyle attraction “Creating a reservoir in the city centre of Singapore” MARINA RESERVOIR SEAConstruction of drainagepumping station at Marina Construction of barrage 17South
  18. 18. 18
  19. 19. Kranji WRP Seletar WRP (decommissioned ) Kim Chuan WRP (decommissioned) Ulu Pandan WRP Bedok WRP (decommissioned)Jurong WRP Changi WRP Phase 2 Phase 1 (completed 2009) North Tunnel Deep Tunnel Sewerage System (DTSS) 19
  20. 20. Changi Water Reclamation PlantLiquids Treatment Modules Solids Treatment Building Digesters DTSS Pumping Station 20
  21. 21. Challenges Ahead – Leveraging on R&D & TechnologyRising Energy Prices Prices set to increase in the long run Population Growth Stringent Regulations Climate Change & Higher Public Expectations 21
  22. 22. Journey to Low Energy Treatment Variable Salinity PlantsBenefits: Energy consumption: 3.5kWh/m3 to 1.7kWh/m3 Increase catchment area from two-thirds to 90% of Singapore 22
  23. 23. Journey to Low Energy TreatmentCurrent 3.5 kWh/m3 SWRO – Variable Salinity Process : 1.7 kWh/m3 – Memstill (with waste heat): 1.0 kWh/m3 – Electrochemical Desalting: 1.5 kWh/m3Short-term < 1.5 kWh/m3 Breakthrough R&DLong- term < 0.75 kWh/m3Biomimetic Membranes / Biomimicry of Natural Desalination Processes Mangrove Aquaporins 23
  24. 24. Journey to Low Energy Treatment Final Effluent Activated Membrane RO Unit UASB Sludge Chamber Prof. Gatze LettingaLKY Water Prize 09 Recipient Raw Sewage Advantages of UASB system • Biogas production for powerUASB System for generationWastewater • Reduction in power usageTreatment • Less space • Less sludge generation 24
  25. 25. 3P Approach Friends of Water Our Waters ProgrammeNEWater Visitor Centre Community Outreach 25
  26. 26. The Blue Map of Singapore 26
  27. 27. Existing 27Kolam Ayer Project - Before
  28. 28. Existing ProposedProposed 28Kolam Ayer Project - After
  29. 29. Existing 29Lower Seletar Reservoir
  30. 30. Proposed 30Family Bay at Lower Seletar Reservoir
  31. 31. Regional CooperationSingapore Cooperation Program Training Award (SCPTA)– The primary platform through which Singapore offers technical assistance to other countries. Water–related courses include water infrastructure project financing, sustainable water resource management and strategic used water management etc.. Developing East Asia countries are eligible. More info - .html 31
  32. 32. Regional Cooperation Temasek Foundation Water Leadership Program – Designed for water leaders operating in Asian emerging markets that are adapting to the increasing water and sanitation demands placed on them. It aims to expose participants to the best practices in water utilities governance, practical guidance on managing water utilities effectively, and potential strategies to deal with existing and future challenges. More info - or Contact Ms Luana Chow or call (+65) 6516 7167 32
  33. 33. Regional Cooperation– World Health Organisation Collaborating Centre 33
  34. 34. Regional CooperationMWA Governor meeting with CE, PUBin Nov 2011 in Bangkok Singapore PUB-WHO Workshop on Water Safety Plan on 22 Feb 12 34
  35. 35. The Global Platform for the Sharing and Co-Creation of Innovative Water Solutions • Inaugural event started in 2008 • Gained traction as a premier global water event • Key highlights include Lee Kuan Yew Water Prize, Water Leaders Summit (by invitation only), Water Convention, Water Expo & Business Forums • 5th SIWW held in conjunction with World Cities Programme Summit & CleanEnviro Summit Singapore ConceptLee Kuan Yew Water An international water prize to recognise the achievements of individuals and/orPrize organisations in the development of breakthrough water technologies A by-invitation, high-level event bringing together global water leaders to discussWater Leaders Summit pertinent water issues and policy solutions A leading-edge international technology conference to share and discuss technicalWater Convention solutions An international water technologies exhibition showcasing leading water technologiesWater Expo and productsBusiness Forums 35 A platform for networking, business matching & sharing of market opportunities
  36. 36. Thank You 36