Method of treatment of the circulation water of a paper mill

Details Method of treatment of the circulation water of a paper mill Method of treatment of the circulation water of a paper mill

1987-07-01

1988-08-02

Sever, Frank

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

162 29, 162 45, 162 76, B01D 2101

Patent

active

047612380

ABSTRACT:
A method for removing dissolved and colloidal material from the circulation water of a paper mill with chemical pulp fibers wherein fiber sludge which has been recovered from the paper manufacturing process and acidified to a pH of 1.5-2.5, is mixed with the circulation water of a paper mill whereby the dissolved and colloidal substances are precipitated.

REFERENCES:
patent: 4198266 (1980-04-01), Kirk et al.

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