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Granular filtration

59 bytes added, 20:38, 18 May 2012
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In water treatment, granular filtration is a process where water flows through granular material (often sand) while suspended solids (sand, clay, iron and aluminum flocs) are retained, substances are biochemically decomposed and pathogenic microorganisms (bacteria, viruses, protozoa) are removed.
====Granular media, rapid rate filters and filter media====
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