Method of deodorizing ion-exchanged purified water

Details Method of deodorizing ion-exchanged purified water Method of deodorizing ion-exchanged purified water

1996-04-01

1999-08-24

Cintins, Ivars

Liquid purification or separation

Processes

Ion exchange or selective sorption

210686, 210916, C02F 142

Patent

active

059421223

ABSTRACT:
An ion-exchanged purified water having an odor substance generated from a double bed type purified water producing apparatus and a mix bed type purified water producing apparatus is flowed through a hydrogen type weak acid cation exchange resin to obtain an odor-free refined purified water. Moreover, an original water is passed through a single ion-exchange tower in which a mix resin layer of a regenerated mix bed type purified water producing portion is arranged at an upper portion and a hydrogen type strong acid cation exchange resin of a polisher portion is arranged at a lower portion, so that an odor substance in the ion-exchanged purified water generated from the mix bed type purified water producing portion is removed by the polisher portion and the odor-free purified water is obtained.

REFERENCES:
patent: 3985648 (1976-10-01), Casolo
patent: 4025705 (1977-05-01), Corte et al.
patent: 4147717 (1979-04-01), Kershaw
patent: 4239621 (1980-12-01), Heskett
patent: 4421652 (1983-12-01), Heskett
patent: 4564455 (1986-01-01), Flynn et al.
patent: 4820421 (1989-04-01), Auerswald
patent: 5043075 (1991-08-01), Dietmar et al.
Patent Abstract of Japan, vol. 13, No. 227 (C-600) & JP-A-01 038192 (Japan Organo), Feb. 8, 1989, abstract.
"Technic and Management for Treating a Water by Using an Activated Carbon," Nikkan Kogyo Sha, (1978), p. 130.

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