C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
362/49
C02F 1/00 (2006.01) C02F 1/52 (2006.01) C02F 1/54 (2006.01)
Patent
CA 1038511
Abstract of Disclosure Phosphate is removed from an aqueous medium by adding inorganic coagulant followed by a cationic polyelectrolyte which is a water-soluble salt or quaternary ammonium salt of a high molecule weight copolymer of acrylamide and an alkylaminoalkyl ester of acrylic or methacrylic acid. The process is of particular value in reducing the phosphate content of sewage effluent. -1-
209063
Andrew Kenneth G.
Field John R.
LandOfFree
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