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Polyaluminum Chloride and Alum Coagulation of Clay‐Fulvic Acid Suspensions
Author(s) -
Dempsey Brian A.,
Sheu Hueymeei,
Ahmed T.M. Tanzeer,
Mentink Jack
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.tb05512.x
Subject(s) - alum , coagulation , cationic polymerization , chemistry , chloride , mixing (physics) , hydrolysis , aluminium , flocculation , water treatment , inorganic chemistry , chemical engineering , organic chemistry , environmental engineering , environmental science , psychology , physics , quantum mechanics , psychiatry , engineering
Polyaluminum chloride is an unconventional coagulant that will soon be introduced to the US market. It is produced by partial hydrolysis of aluminum chloride and is thought to consist of stable cationic polymers of aluminum. The benefits of polyaluminum chloride relative to alum have been investigated as a function of pH, raw water composition, and mixing conditions. Conditions are outlined that might indicate the effective use of polyaluminum chloride instead of alum.