Dr Jessica Salas, Kahublagan Sang Panimalay Foundation Philippines

Overview of Global Trends in Rainwater Harvesting Regional Southeast Asia Conference on RAINWATER HARVESTING IN IWRM November 25-26, 2008, Davao City, Philippines Jessica C. Salas, Past President, IRCSA I

Greetings from IRCSA and the Rainwater Partnership ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Rainwater Utilization Trend among Developed Countries ,[object Object],[object Object],[object Object],[object Object]

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Trend in Developing Countries ,[object Object],[object Object],[object Object],[object Object],[object Object]

GLOBAL PRACTICES RAINWATER HARVESTING

Japan, Miyake Island ,[object Object],[object Object],[object Object],[object Object]

Tokyo, Japan ,[object Object],[object Object],[object Object],[object Object],Example: 1993. EDO Tokyo Museum with 2,500 m3 tank & roof area of 30,000 m2 used as catchments.

India ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Taiwan ,[object Object],[object Object],[object Object],[object Object],[object Object]

Taiwan Sub basin Planning for Flood Control Agriculture

China ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Loess Plateau Annual Rainfall : 300-400 mm, No other water source

Rainwater Harvesting in Gansu, China

Australia: Olympic Village Saving 55% of fresh water with RWH Annual Rainfall – 850 mm

Caribbean ,[object Object],[object Object]

England ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Millennium Dome Roof Area, 100,000 m 2 50 m high. Satisfies 20%of 500 m 3 requirement of toilets .

Belgium 1999 Code of Vlaamse Milieunaatschapij: all new and repaired houses to install rainwater facilities with minimum cistern capacity of 3,000 gal, using at least 50% of surface, and must have an overflow or seepage system. The law is supported with a financial grant. .The University of Ghent has 136 apartments for students all using rainwater for toilets. Leonard Bus Co., - for using rainwater for cleaning, savings of 2,000 m2 of fresh water

Experiences in South East Asia Bangladesh, Cambodia, Indonesia, Malaysia, Philippines, Singapore, Thailand, Vietnam

Indonesia ,[object Object],[object Object],[object Object],Kaibolafin Village on Kola Island survive on a single catchment from a church roof & a single cistern. www.irc.nl/pmt

Bangladesh ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Singapore ,[object Object],Study of rainwater from the Bedok Area says, water quality is comparable with water coming from a protected watershed .

Vietnam ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],“ Only rich people can afford rainwater tanks.”

Cambodia ,[object Object],[object Object],[object Object],[object Object]

Thailand ,[object Object],[object Object],[object Object]

Philippines ,[object Object],[object Object],[object Object],[object Object],[object Object]

INSTITUTIONS FOR DEVELOPMENT & ADVOCACY

International Rainwater Catchment Systems Association With Regional Networks in 1. North America 2. Latin America & the Caribbean 3. Europe 4. South and East Africa 5. Middle East 6. South Asia 7. East Asia 8. Australia

Rainwater Partnership ,[object Object],[object Object],[object Object],[object Object]

THE FUTURE ,[object Object],[object Object],[object Object],[object Object]

“ The future belongs to a decentralized infrastructure which is flexible enough to adapt to technical progress when environmental policy, local conditions and/or individual needs change.” Martin Bullerman Member, Water Working Group Delphi Study

Rainwater Harvesting is the decentralized water technology for the next millennium.

Dr Jessica Salas, Kahublagan Sang Panimalay Foundation Philippines

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