C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
C02F 1/52 (2006.01) C02F 1/54 (2006.01) C02F 1/56 (2006.01) D21H 17/29 (2006.01) D21H 17/45 (2006.01) D21H 17/56 (2006.01) D21H 17/68 (2006.01)
Patent
CA 2186689
This invention relates to the clarification of waters containing turbidity-causing components. This method comprises the addition of a stable colloidal silica suspension and water based polymeric coagulant to the turbid water. The components of the invention may be added independently, or blended together so that addition is simultaneous. The colloidal silica may also be conditioned by passing over a cationic exchange resin prior to addition of cationic polymer. The invention is also a colloidal silica containing water-soluble cationic polymer.
Choo Pek Lee
Kobayashi Michio
Picco David A.
Salmen Kristine S.
Nalco Chemical Company
Smart & Biggar
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