The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 15, 2003
Filed:
Mar. 15, 2000
Applicant:
Inventors:
Masaharu Uno, Kanagawa, JP;
Shuhei Wakita, Kanagawa, JP;
Shuji Nakamatsu, Kanagawa, JP;
Yoshinori Nishiki, Kanagawa, JP;
Assignee:
Permelec Electrode Ltd., Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F 1/461 ;
U.S. Cl.
CPC ...
C02F 1/461 ;
Abstract
A method and apparatus for water treatment. The method comprises supplying an oxygen-containing gas to cathode to yield hydrogen peroxide, supplying an inorganic acid to anode through an acid solution addition opening to yield an oxidation product, e.g., hypochlorous acid, and using both the hydrogen peroxide and oxidation product thus generated to treat a liquid to be treated. The atmosphere around the cathode surface is kept neutral to acidic due to the acidity of the coexisting oxidation product to thereby inhibit the deposition of metal hydroxides.