Decolorization of effluents from pulp mills

Details Decolorization of effluents from pulp mills Decolorization of effluents from pulp mills

1976-03-23

1977-09-20

Bascomb, Jr., Wilbur L.

Liquid purification or separation

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

Responsive to fluid flow

162 30K, 210 40, B01D 1506

Patent

active

040495469

ABSTRACT:
Pulp mill effluents particularly unbleached streams are decolorized by passing those streams through a mass or bed of macroreticular aliphatic weak anion exchange resin at a pH of 6 - 8.5. Preferred resins are further characterized as possessing a high pK.sub.a.

REFERENCES:
patent: 2675359 (1954-04-01), Schneider
patent: 2710254 (1955-06-01), Van Blaricom et al.
patent: 3652407 (1972-03-01), Paleos
patent: 3663467 (1972-05-01), Albright
patent: 3990969 (1976-11-01), Broddevall
Gustafson et al. "Basicities of Weak Base Ion Exchange Resins," I & EC Fundamentals, vol. 9, No. 2, May 1970, pp. 221 et seq.

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