the website below says this solar water disinfection device
which can be attached to a pet bottle will make the water
in the bottle potable with a few hours of exposure
using just the uv rays of the sunshine; no chemicals or electricity.
the site says it is going to test the device in odisha in a big way.
u can get the device called WADI for about 50 pounds now.
the ultimate price when distributed on a large scale will be
much less.
http://www.indiegogo.com/projects/helioz-wadi-a-new-inexpensive-and-sustainable-solar-water-disinfection-tool
which can be attached to a pet bottle will make the water
in the bottle potable with a few hours of exposure
using just the uv rays of the sunshine; no chemicals or electricity.
the site says it is going to test the device in odisha in a big way.
u can get the device called WADI for about 50 pounds now.
the ultimate price when distributed on a large scale will be
much less.
http://www.indiegogo.com/projects/helioz-wadi-a-new-inexpensive-and-sustainable-solar-water-disinfection-tool
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