Water treatment methods

Details Water treatment methods Water treatment methods

1995-05-04

1996-11-19

Wyse, Thomas G.

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

210735, C02F 156

Patent

active

055759246

ABSTRACT:
Disclosed are methods for reducing turbidity of aqueous systems and clarifying wastewater systems utilizing a graft copolymer having the structure: ##STR1## whereby the cationic monomer (F) is represented by ##STR2## wherein R is hydrogen or a C.sub.1 to C.sub.3 alkyl group, R.sub.1 is the salt of an ammonium cation, and the molar percentage of a:b is from about 95:5 to about 5:95, with the proviso that the sum of a and b equals 100%.

REFERENCES:
patent: 3711573 (1973-01-01), Nagy
patent: 4080346 (1978-03-01), Bedell
patent: 4305829 (1981-12-01), Kelsey et al.
patent: 4308189 (1981-12-01), Moritani et al.
patent: 4775715 (1988-10-01), Beresniewicz et al.
patent: 5075401 (1991-12-01), Zhang
patent: 5108622 (1992-04-01), Liao et al.
patent: 5354803 (1994-10-01), Dragner et al.
Betz Handbook of Industrial Water Conditioning, 9th ed., 1991, Betz Laboratories, Inc., Trevose, PA, pp. 23-30.

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