Process for dewatering sewage sludge

Details Process for dewatering sewage sludge Process for dewatering sewage sludge

1977-12-15

1980-03-04

Hart, Charles N.

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Responsive to fluid flow

210 54, C02B 120, C02C 300

Patent

active

041916450

ABSTRACT:
Use of a cationic copolymer prepared by incremental addition of a cationic monomer during the polymerization reaction of a nonionic monomer in the dewatering of sewage sludges provides improved performance characteristics.

REFERENCES:
patent: 3414514 (1968-12-01), Buhl
patent: 3734873 (1973-05-01), Anderson et al.
patent: 3920599 (1975-11-01), Hurlock et al.
patent: 3975341 (1976-08-01), Trapasso
patent: 4077930 (1978-03-01), Lim et al.
Alfrey et al., Copolymerization, Interscience Publishers, _New York, vol. VIII, 1952, p. 156.
Fram et al., "Emulsion Poly. by Continuous Feed of Reactants," Ind. and Eng. Chem., vol. 47, No. 5, May 1955, pp. 1000-1005.

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