Safe drinking water is one of the most important issues of development work, especially among low-income families. At least one third of the population in developing countries has no access to safe drinking water. The lack of adequate water supply and sanitation facilities causes a serious health hazard and exposes many to the risk of water-borne diseases. Therefore, easily applicable water treatment methods are essential for the improvement of living conditions of many people.
The following 9 pages are in this category, out of 9 total.
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