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Water for the World

Water for the World. Quick Quiz…. What percentage of the world’s water can we drink?. 0.8% 6% 19% 30%. A. 0.8%. 0.8 % fresh water. 1.7 % ice, glaciers. Ludovik Hirlimann. www.forestwander.com. 97.5 % sea water. Andrew Hux.

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Water for the World

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  1. Water for the World

  2. Quick Quiz…

  3. What percentage of the world’s water can we drink? • 0.8% • 6% • 19% • 30%

  4. A. 0.8% 0.8 % fresh water 1.7 % ice, glaciers Ludovik Hirlimann www.forestwander.com 97.5 % sea water Andrew Hux

  5. How many people in the world are without access to drinking water? • 1.1 million • 210 million • 1.1 billion • 2.3 billion

  6. C.1.1 billion

  7. On average how many litres of water do we use a day? • 50 • 100 • 150 • 200

  8. C. 150 litres = 10 litres UK Average 150 litres

  9. UK Average 150 litres Mozambique 8 litres America 350 litres

  10. How many litres could be lost through leaks in this country per day if the supply is 4.5 billion litres? • 2 million • 50 million • 500 million • 900 million

  11. D. 900 million Canary Wharf Dwellings (55%) Non dwellings (25%) Lost in transmission (20%)

  12. What percentage of domestic water is used for flushing toilets in the UK? • 10% • 20% • 25% • 30%

  13. D. 30%

  14. Water Consumption Hoekstra, A.Y. and Chapagain, A.K. (2008) Globalization of water: Sharing the planet's freshwater resources, Blackwell Publishing, Oxford, UK

  15. Availability of Water World Resources Institute - PAGE, 2000

  16. Water Scarcity International Water Management Institute

  17. Virtual Water • Water used to produce products • Water footprint = Domestic + Virtual Water Import Virtual Water Export - Hoekstra, A.Y. and Chapagain, A.K. (2008) Globalization of water: Sharing the planet's freshwater resources, Blackwell Publishing, Oxford, UK

  18. Decontamination and Water Service Infrastructure

  19. Water Services Infrastructure

  20. Water Service Infrastructure

  21. Water Treatment Plant Arup

  22. Water Treatment Plant River “source” Add chemicals Stir Filter Settle Store Disinfect Distributee

  23. Alternative Water Sources Groundwater (Well with Pump) WaterAId

  24. Alternative Water Sources Springs Caroline Penn, WaterAId

  25. Alternative Water Sources Surface Water – Lakes and Rivers Courtesy of Indrajit Shah

  26. Alternative Water Sources Rainwater Harvesting Anokhee Shah,

  27. Alternative Water Sources Water Delivery Anokhee Shah,

  28. Alternative Water Sources Sea – Thermal Desalination or Reverse Osmosis Arup

  29. Treatment – Appropriate Technology Potters for Peace – Ceramic Water Filters Slow sand filtration – Biosand Filter Potters for Peace www.biosandfilter.org

  30. Treatment – Appropriate Technology SODIS – Solar Disinfection SODIS / Eawag

  31. Conclusions Arup

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