Decontamination of water using nitrate selective ion exchange re

Details Decontamination of water using nitrate selective ion exchange re Decontamination of water using nitrate selective ion exchange re

1989-11-16

1990-07-31

Cintins, Ivars

Liquid purification or separation

Processes

Ion exchange or selective sorption

210903, C02F 142

Patent

active

049448781

ABSTRACT:
A method for nitrate decontamination of water which involves passing the water through a bed of alkyl phosphonium anion exchange resin which has pendant alkyl groups of C.sub.3 or larger.

REFERENCES:
patent: 3420773 (1969-01-01), Selmeczi
patent: 3775088 (1973-11-01), Higgins
patent: 4061724 (1977-12-01), Grose et al.
patent: 4134861 (1979-01-01), Roubinek
patent: 4267057 (1981-05-01), Hager et al.
patent: 4479877 (1984-10-01), Guter
patent: 4483772 (1984-11-01), Rolke et al.
patent: 4642192 (1987-02-01), Heskett
patent: 4671879 (1987-06-01), Solt et al.
patent: 4872989 (1989-10-01), Pirotta
Chemical Abstracts 103: 124434j (1985).
Guter, "Removal of Nitrate from Contaminated Water Supplies for Public Use: Final Report," EPA-600-S2-82-042 (Aug. 1982).

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