Water purification process

Details Water purification process Water purification process

1976-12-20

1979-03-20

Hart, Charles N.

Liquid purification or separation

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

Responsive to fluid flow

210 38B, 423 54, 423100, 423607, C02B 142, C02B 156

Patent

active

041452810

ABSTRACT:
Process for the removal of chromium and zinc corrosion inhibitor compounds from cooling tower blowdown streams, comprising contacting the water of said streams first with a weakly basic anion exchange resin and then with a weakly acidic cation exchange resin.

REFERENCES:
patent: 3658470 (1972-04-01), Zievers et al.
patent: 3664950 (1972-05-01), Saraceno et al.
patent: 3725259 (1973-04-01), De Pree
patent: 3972810 (1976-08-01), Chopra

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