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The application of Appropriate Technology

Articles for Keyword "solar water treatment"

Managing Water In The Home: Accelerating Health Gains From Improved Water Supply

Posted on Oct 26, 2011

A WHO document from 2002 examining small scale water purification methods. A large fraction of the World’s population around 1.1 billion people – does not have access to improved sources of water. For many others, contamination of water during transport and in the household presents a significant health risk. For this segment of the world’s population, use of effective technologies for household water treatment and storage is likely to have direct beneficial effects in the form of reduced infectious diseases and also contribute to greater productivity and other associated benefits from improved health. Household treatment often can provide these benefits to underserved populations much more quickly than it will take to design, install and deliver piped community water supplies. Identifying the most accessible and effective methods for household water storage and treatment are matters of considerable importance and are the subject of this report. You can read the whole document as a PDF file (244...

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SODIS

Posted on Oct 29, 2011

SODIS is a water treatment method which uses solar energy to improve the microbiological water quality. It is used at household level to treat small quantities of drinking water. The treatment process is a simple technology using solar radiation to inactivate and destroy pathogenic microorganisms present in the water. The treatment basically consists in filling transparent containers with water and exposing them to full sunlight for about five hours. This document details research into using this very simple method to improve the quality of water, it is available as a PDF file (520 kb). This file is taken from the website http://www.sodis.ch, where more information including educational material can be...

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Solar Water Distiller

Posted on Oct 29, 2011

Solar Stills operate on the same principles that produce rainfall. The sun is allowed into and trapped in the Still. The high temperatures produced destroy all pathogens. The water evaporates, and in this process, only pure water vapor rises in the Still, only to condense on the glass. You can read the whole document as a PDF file (188 kb)

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