SLOW SAND FILTRATION - IRC

85SL. slow sand . FILTRATION . A low cost Treatment for Water Supplies in Developing Countries slow sand FILTRATION is a form of surface water treatment technology which should be considered in any situation where low cost and ease of operation and maintenance are desirable features. These criteria might equally well apply in developed and developing countries, but this booklet is primarily aimed at developing country applications because of the special circumstances and urgent needs in those countries. Published for the World Health Organization's Regional Office for Europe by the Water c _. Research Centre, UK, in collaboration with the International Reference Centre for Community JL$^ -$S<SL-U2&). Water Supply and Sanitation, The Netherlands EXECUTIVE SUMMARY. slow sand FILTRATION was the first water treatment process introduced to improve the quality of surface water in Europe and North America and soon proved to provide protection against cholera and typhoid.

1. THE NEED 1.1 The Target A simple, low-cost water treatment system is essential for widespread application in developing countries. Slow sand filtration (SSF) is a form of surface water treatment technology which should be considered in any situation where low cost and ease of operation and maintenance are desirable features. These criteria might

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  Filtration, Sand, Slow, Slow sand filtration

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