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Slow sand filter design and construction in developing countries
Author(s) -
Paramasivam R.,
Mhaisalkar V.A.,
Berthouex P.M.
Publication year - 1981
Publication title -
journal ‐ american water works association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.466
H-Index - 74
eISSN - 1551-8833
pISSN - 0003-150X
DOI - 10.1002/j.1551-8833.1981.tb04676.x
Subject(s) - slow sand filter , filtration (mathematics) , filter (signal processing) , sand filter , environmental science , geology , engineering , environmental engineering , water treatment , mathematics , statistics , wastewater , electrical engineering
Sand filtration is an important unit operation in the purification of surface water supplies. It is usually achieved by either slow sand or rapid gravity filters. Because slow sand filters require a larger area than rapid filters, a general misconception prevails among decision makers that they are expensive. This is not, however, always true, and for many small water supplies, slow sand filters are appropriate and cost effective.