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Reduction of Turbidity by a Coal‐Aluminum Filter
Author(s) -
Collins Anthony G.,
Johnson Robert L.
Publication year - 1985
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.1551-8833.1985.tb05559.x
Subject(s) - turbidity , alkalinity , coagulation , filter (signal processing) , aluminium , environmental science , coal , pulp and paper industry , process (computing) , environmental engineering , waste management , materials science , chemistry , engineering , computer science , metallurgy , geology , psychology , oceanography , organic chemistry , psychiatry , electrical engineering , operating system
Coal‐aluminum granular media filters successfully reduce turbidity in low‐alkalinity raw waters to less than 1.0 ntu, without a coagulation step or external coagulant aids. Data from experiments conducted with control and pilot‐plant filters show the viability of the process and indicate the turbidity removal and retention mechanisms. Operational characteristics of the process are similar to those of a conventional filter. The costs of the coal‐aluminum process compare favorably with those of traditional treatment.