1. engineering a better world WATER

2. According to the UN By 2025, it is estimated that about two thirds of the world's population - about 5.5 billion people - will live in areas facing moderate to severe water stress Approximately 1.1 billion people still do not have access to improved drinking water in 2005

3. Appearances can be Deceiving!

5. Why do we need Water?

6. World Water distribution

7. Why do we need a Good Water Supply System?

8. Possible Solutions to Water Supply Issues 1. RAM PUMP / HYDRAMS

9. Possible Solutions to Water Supply Issues 1. RAM PUMP / HYDRAMS Inexpensive Few moving parts Use the waters inherent energy Cons: Can only be used in limited scenarios

10. Possible Solutions to Water Supply Issues 2. THE AQUADUCT

11. Possible Solutions to Water Supply Issues 2. THE AQUADUCT http://www.youtube.com/watch?v=-U-mvfjyiao

12. Is that water clean?

13. Child collecting drinking water in Cambodia

14. Is that water clean? Child drinking water in Honduras, Central America

15. Is that water clean? http://www.youtube.com/watch?v=77Mv8pauMKc&eurl=http%3A%2F%2 Ftheinspirationroom.com%2Fdaily%2F2008%2Fworld-vision-dirty-water- online%2F&feature=player_embedded

16. Is that water clean? Child drinking water in Sudan There are many filter and solar distillation based technologies designed to provide clean drinking water to people: 1. Ceramic / Clay Filter 2. Life Straw 3. Water cone

17. Ceramic Filters

18. Life straw

19. Water Cone

20. Floating Islands

21. SOME TIPS First note down all the essence of the problem. Remember: You want to deliver potable water to people living on floating and stilt buildings. The water level changes with the season (wet and dry) Where will you have everything located: floating, on a stilt, stuck to the house, etc? Imagine a simplistic case involving you sitting at the top of a buoy in the Indian ocean (maybe in the Perth harbour area or some place you’re familiar with). How can you send water up to where you are? The water level changes with the tides? The ocean water is plenty but I doubt you want to drink it as it is!

22. SOME TIPS Transfer the thought process you had in the simplistic and familiar case to the Tonle Sap area You don’t have to tackle both the water treatment and water supply issues for the Challenge, you can pick one (but both would be great). Remember to consider economic, community and environmental impacts of your design wherever possible when designing (TRIPLE BOTTOM LINE).

23. Questions? ?

24. Activity: Make your own water filter In country groups, Decide what to do Buy materials Make filter Test filter Present to class

25. How does the activity relate to the real world? People in poorer countries have their own coping mechanisms Resourcefulness of groups with little money North-South co-operation Richer countries formed the G8 and OECD Poorer countries formed the Group of 24 Collaboration between countries Based on actual country’s illiteracy rate Lack of education and access to information Illegible instructions Based on actual country’s Gross Domestic Product (GDP) Different amounts of money per group Real WorldActivity

26. Useful Links 1. RAM PUMPS http://www.lifewater.ca/ram_pump.htm http://www.bae.ncsu.edu/programs/extension/publicat/wqw m/ebae161_92.htmlhttp://www.bae.ncsu.edu/programs/extension/publicat/wqw m/ebae161_92.html http://www.clemson.edu/irrig/Equip/ram.htm http://home.att.net/~africantech/ESME/hydram2/HydRam2. htmhttp://home.att.net/~africantech/ESME/hydram2/HydRam2. htm http://www.theramcompany.com/ http://www.itdg.org/docs/technical_information_service/hydr aulic_ram_pumps.pdfhttp://www.itdg.org/docs/technical_information_service/hydr aulic_ram_pumps.pdf

27. Useful Links 2. AQUADUCT http://science.howstuffworks.com/earth/green- technology/remediation/aquaduct-filtration- vehicle.htm/printablehttp://science.howstuffworks.com/earth/green- technology/remediation/aquaduct-filtration- vehicle.htm/printable 3. CERAMIC FILTER http://www.rdic.org/waterceramicfiltration.htm http://www.worldchanging.com/archives/002738.html

28. Useful Links 4. LIFESTRAW http://www.vestergaard-frandsen.com/lifestraw.htm http://express.howstuffworks.com/lifestraw2.htm 5. WATER CONE http://www.mage-watermanagement.com/ 6.BIOHAVEN FLOATING ISLANDS http://www.youtube.com/watch?v=v0TiKkbbNxI http://www.floatingislandinternational.com/fi_pages.php?name=m30 http://patriotlwm.com/patriot-lwm-and-biohaven-floating-islands/

29. Useful Links 7. WATER ORGANISATIONS (Continued) http://water.org/facts/ http://www.treehugger.com/ http://www.rdic.org/home.htm http://www.worldvision.com.au/ourwork/Solutions/WaterHe althLife.aspxhttp://www.worldvision.com.au/ourwork/Solutions/WaterHe althLife.aspx http://aquaclara.org/what-we-do/the-challenge-of-clean- water/http://aquaclara.org/what-we-do/the-challenge-of-clean- water/ http://www.livelearn.org/projects/p02_adbvideo.asp http://www.worldwater.org/data.html http://www.worldbank.org/depweb/english/modules/enviro nm/water/index.htmlhttp://www.worldbank.org/depweb/english/modules/enviro nm/water/index.html