Pulp and paper mill wastewater color removal

Details Pulp and paper mill wastewater color removal Pulp and paper mill wastewater color removal

1991-08-12

1993-04-06

Hruskoci, Peter

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

210728, 210736, 210917, 210928, C02F 156

Patent

active

052000893

ABSTRACT:
The invention provides a method for decolorizing an effluent stream from a pulp mill plant comprising the step of adding an effective amount of a decolorizing composition including a ferrous sulfate and a water-soluble cationic amine polymer.

REFERENCES:
patent: 3894946 (1975-07-01), Panzer et al.
patent: 3953330 (1976-04-01), Tonkyn et al.
patent: 4155847 (1979-05-01), Tanaka et al.
patent: 4450092 (1984-05-01), Huang
patent: 4668403 (1987-05-01), Walterick et al.
patent: 4800039 (1989-01-01), Hassick et al.
patent: 4851128 (1989-07-01), Rose

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