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Characterizing Surface Waters That May Not Require Filtration
Author(s) -
Geldreich Edwin E.,
Goodrich James A.,
Clark Robert M.
Publication year - 1990
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.1551-8833.1990.tb07066.x
Subject(s) - turbidity , filtration (mathematics) , raw water , environmental science , surface water , water quality , filter (signal processing) , chlorine , fecal coliform , environmental engineering , computer science , chemistry , mathematics , geology , computer vision , ecology , oceanography , statistics , organic chemistry , biology
Field data from various utilities were studied with the object of identifying a set of characteristics of a surface water that might allow it to be successfully treated by disinfection alone, thus avoiding the need to filter. It was found possible to define water quality standards for a surface water amenable to disinfection only: fecal coliforms—20/100 mL, turbidity—1 ntu, color—15 acu, and chlorine demand—2 mg/L. As well as meeting specifications for raw‐water quality and monitoring, a utility would also need to meet certain conditions for system operations.