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UNICEF helps families harness the power of the sun to improve the quality of their drinking water. Sunlight inactivates diarrhea-causing pathogens in two ways: radiation with UVA rays and increased water temperature. Like roof water harvesting, solar water disinfection is a cost effective way to get clean water for kids.
Here’s how it works:
- Contaminated water is filled into transparent plastic bottles.
- Bottles, many times, are conveniently placed on corrugated iron sheet roofs.
- Exposing the water to sunlight for as little as 6 hours can render it clean.
An elementary school master in Indonesia is thrilled with this innovation:
"Great, no more problem with safe drinking water for teachers and students. Everyone can drink as much as they want during a break!" Some even drink half a bottle after class, but there will be no longer a problem with drinking water in the school "thanks to UNICEF who gives to us this technology!"
Comments (5)
very useful information.
Posted by mkpaul | July 19, 2007 11:11 PM
Posted on July 19, 2007 23:11
Sounds interesting...wonder if this water supply initative would make a difference.
Posted by Doug DeNunzio | July 22, 2007 2:32 PM
Posted on July 22, 2007 14:32
What about the chemicals in the plastics? Glass could be used.
Posted by Nhu | July 22, 2007 6:12 PM
Posted on July 22, 2007 18:12
I love to see the blog used to highlight innovations from the field!
Posted by rachael | July 24, 2007 5:49 PM
Posted on July 24, 2007 17:49
great job. i think this will pave the way for
more innovative ideas.. congrats..
Posted by anitha | August 13, 2007 3:46 AM
Posted on August 13, 2007 03:46