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Field Evaluation of As Removal by Conventional Plants
Author(s) -
Chen Abraham S.C.,
Fields Keith A.,
Sorg Thomas J.,
Wang Lili
Publication year - 2002
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.1551-8833.2002.tb09540.x
Subject(s) - lime , softening , filtration (mathematics) , water treatment , coagulation , pilot plant , environmental science , pulp and paper industry , environmental engineering , waste management , metallurgy , materials science , mathematics , engineering , psychology , statistics , psychiatry , composite material
During a year‐long study, weekly samplings and analyses were conducted at five US water treatment facilities—two coagulation–filtration plants, two iron‐removal plants, and one lime‐softening plant. These municipal treatment facilities had a treatment capacity of 1.4–600 mgd (5.2–2,271 ML/d). The study was conducted to evaluate the performance of these full‐scale plants for consistently removing arsenic (As) from raw water containing 2.6–97.9 μg/L of total As. The two coagulation–filtration plants and one iron‐removal plant consistently removed As to < 10 μg/L; however, the other iron‐removal plant and the lime‐softening plant did not.