Akvopedia-spade, administrator
3,247
edits
Changes
no edit summary
==Operation==
[[Image:Pictograms SODIS.jpg|400px800px]]
Transparent water bottles are filled with water from contaminated sources. To increase the oxygen dissolved in the water, bottles can be filled three quarters, then shaken for 20 seconds (with the cap on), then filled completely. Highly turbid water (turbidity higher than 30 NTU) must be filtered prior to exposure to the sunlight.
Numbers: Used by more than 1,000,000 in Asia, Africa and Latin America.
[[Image:SODIS map for Akvo.5.jpg|800px|Worldwide application of SODIS in projects coordinated by Eawag]]
The Swiss Federal Institute of Aquatic Science and Technology (Eawag), through the Department of Water and Sanitation in Developing Countries (Sandec), coordinates SODIS promotion projects in 33 countries including Bhutan, Bolivia, Burkina Faso, Cambodia, Cameroon, DR Congo, Ecuador, El Salvador, Ethiopia, Ghana, Guatemala, Guinea, Honduras, India, Indonesia, Kenya, Laos, Malawi, Mozambique, Nepal, Nicaragua, Pakistan, Perú, Philippines, Senegal, Sierra Leone, Sri Lanka, Togo, Uganda, Uzbekistan, Vietnam, Zambia, and Zimbabwe. Contact addresses and case studies of the projects coordinated by the Swiss Federal Institute of Aquatic Science and Technology (Eawag) are available at [http://www.sodis.ch/ sodis.ch].