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Studies of Asbestos Removal by Direct Filtration of a Lake Superior Water
Author(s) -
Peterson David L.,
Schleppenbach Frank X.,
Zaudtke Terry M.
Publication year - 1980
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.1551-8833.1980.tb04487.x
Subject(s) - alum , filtration (mathematics) , environmental science , particulates , fluoride , environmental engineering , water treatment , asbestos , waste management , pulp and paper industry , chemistry , materials science , engineering , mathematics , metallurgy , inorganic chemistry , statistics , organic chemistry
A filtration research program conducted at Duluth, Minn., included pilot and full‐scale plant studies to investigate the effectiveness of anionic polymers, the use of pH adjustment to reduce alum feed rate, the effects of various rapid mix velocity gradients on particulate removal, alternate fluoride chemical feed points, and the operational impact of exceptionally high turbidities experienced as a result of storms on Lake Superior.