Liquid purification or separation – Processes – Ion exchange or selective sorption
Patent
1997-11-04
2000-04-04
Cintins, Ivars
Liquid purification or separation
Processes
Ion exchange or selective sorption
204276, 205751, 205754, 205760, 210748, 210754, 210 961, 210138, 210143, 210243, C02F 128
Patent
active
06045704&
ABSTRACT:
In a water purification system for purifying raw water with a first d.c. voltage is applied between a conductive adsorber portion (20) and a primary electrode (27) in the raw water, a second d.c. voltage higher than the first d.c. voltage is applied in place of the first d.c. voltage at intervals between the adsorber portion and the primary electrode to accelerate generation of chlorine from the raw water. The primary electrode is opposite to the adsorber portion with a particular space left therebetween. It is preferable that the adsorber portion is provided with a supplementary electrode (29) which is opposite to the primary electrode so that the particular space is left therebetween.
REFERENCES:
patent: 3701728 (1972-10-01), Appleman
patent: 4361471 (1982-11-01), Kosarek
patent: 5085743 (1992-02-01), Reddy et al.
Sato Motoharu
Suga Takaaki
Watanabe Kazushige
Cintins Ivars
Sanden Corporation
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