Color removal from paper and pulp mill aqueous effluents

Details Color removal from paper and pulp mill aqueous effluents Color removal from paper and pulp mill aqueous effluents

1976-03-15

1980-10-07

Smith, William F.

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

With regeneration, reclamation, reuse, recycling or...

210500M, 210650, D21C 1100

Patent

active

042266734

ABSTRACT:
An improved method for removal of color bodies from aqueous effluents from paper and pulp mill manufacturing operations by ultrafiltration wherein the semi-permeable membrane utilized is a polyethyleneimine coated polysulfone film.

REFERENCES:
patent: 3551244 (1970-12-01), Forester et al.
patent: 3758405 (1973-09-01), Fremont
patent: 3808305 (1974-04-01), Gregor
patent: 3951815 (1976-04-01), Wrasidlo
patent: 3977467 (1976-08-01), Trulson et al.
"Paper Trade Journal", pp. 26-27; Apr. 29, 1974.

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