Dewatering compositions and processes

Details Dewatering compositions and processes Dewatering compositions and processes

1991-10-03

1993-05-25

Hruskoci, Peter

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

210734, 210735, 252180, C02F 1114

Patent

active

052136930

ABSTRACT:
Sewage sludge and other organic suspensions are prepared for filter press or belt press dewatering by substantially simultaneous treatment with a cationic coagulant polymer and a cationic flocculant polymer. A novel composition comprising a dry blend of the two polymers can then be formed to provide a combined solution for mixing with the suspension.

REFERENCES:
patent: 3321649 (1967-05-01), Benedictis et al.
patent: 3509021 (1970-04-01), Woodward
patent: 3951792 (1976-04-01), Azorlosa et al.
patent: 3994806 (1976-11-01), Rausch et al.
patent: 4588508 (1986-05-01), Allenson et al.
patent: 4720346 (1988-01-01), Flesher et al.
patent: 4835206 (1989-05-01), Farrar et al.
patent: 5112500 (1992-05-01), Jones et al.
Japanese Abstract 62-57700, vol. 11, No. 251, Aug. 14, 1987.
Japanese Abstract 3-8498, vol. 15, No. 126, Mar. 27, 1991.

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