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Removing trihalomethane precursors from various natural waters by metal coagulants
Author(s) -
Chadik Paul A.,
Amy Gary L.
Publication year - 1983
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.1551-8833.1983.tb05215.x
Subject(s) - trihalomethane , alum , coagulation , chemistry , raw water , water treatment , environmental chemistry , ferric , flocculation , chloride , pulp and paper industry , environmental engineering , inorganic chemistry , environmental science , organic chemistry , psychology , psychiatry , engineering
Trihalomethane formation potential (THMFP) in six natural waters was reduced by using alum or ferric chloride coagulation in bench‐scale studies. The coagulants were tested at ambient pH (8.5) and modified pH (6.0). The effects of several coagulant aids on THMFP reduction were also considered. Coagulation under modified pH conditions removed more THMFP than coagulation under ambient pH conditions. The effectiveness of coagulation in removing THMFP depended on coagulation process variables as well as raw water characteristics.