Tuesday, March 17, 2009

Cleaner Drinking Water

The Solar Water Disinfection (SODIS) technique is a simple process used to improve the microbiological quality of drinking water. The process involves putting water in clear plastic bottles, putting them out into the sun (usually on a high roof), and allowing the sun's UV rays to deactivate any disease-causing microorganisms. The heat from the sun also improves the disinfection process, making it three times faster if the water temperature reaches 50 degrees Celsius. This innovative technology, although limited, provides people with safer drinking water that has been proven to significantly reduce the occurrence of diarrhea and other diseases.
Source: Sodis.ch