Method and apparatus for removing oxidizable contaminants in wat

Details Method and apparatus for removing oxidizable contaminants in wat Method and apparatus for removing oxidizable contaminants in wat

1988-01-28

1991-02-05

Spear, Frank

Liquid purification or separation

Processes

Ion exchange or selective sorption

210668, 210669, 210748, 210758, 210765, 210900, C02F 146

Patent

active

049902601

ABSTRACT:
A method and apparatus for removing contaminants in waters used for industrial cleaning. The method and apparatus begins with water which has been purified to level of approximately 18 megaohms resistivity with total inorganic dissolved solids to 1 part per trillion and total organic dissolved carbon contaminants in the range of approximately 100 parts per billion, and purifies it to a level of approximately 18 megaohms resistivity with total inorganic dissolved solids to 1 part per trillion and total organic dissolved carbon contaminants in the range of approximately 10 parts per billion. The method and apparatus includes means for inducing cavitation in the water and irradiating the water with ultraviolet radiation to thereby cause the oxidizable contaminants to be oxidized and therefore removed before the water is used for industrial cleaning.

REFERENCES:
patent: 4273660 (1981-06-01), Beitzel
patent: 4280912 (1981-07-01), Berry, III et al.
patent: 4296066 (1981-10-01), Schenck
patent: 4296328 (1981-10-01), Regan
patent: 4428757 (1984-01-01), Hall
patent: 4544499 (1985-10-01), Tran et al.
patent: 4698153 (1987-10-01), Matsuzaki et al.
patent: 4764278 (1988-08-01), Chou et al.
patent: 4808287 (1989-02-01), Hark
patent: 4842723 (1989-06-01), Parks et al.

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