C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
362/2
C02F 11/14 (2006.01) C02F 1/54 (2006.01)
Patent
CA 1180825
Abstract of The Disclosure A method of dewatering bio-sludge is disclosed. This method comprises adding to the sludge, an effective amount for the purpose of an acrylamide/dimethylaminoethylmethacrylate methyl- chloride copolymer having a cationic charge density of 90%.
406284
Betzdearborn Inc.
Borden Ladner Gervais Llp
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