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:
Mar. 28, 2006
Filed:
Jan. 08, 2003
Masahiro Iseki, Gunma, JP;
Mineo Ikematsu, Ibaraki, JP;
Naoki Hiro, Osaka, JP;
Tomohito Koizumi, Gunma, JP;
Tsuyoshi Rakuma, Gunma, JP;
Masahiro Iseki, Gunma, JP;
Mineo Ikematsu, Ibaraki, JP;
Naoki Hiro, Osaka, JP;
Tomohito Koizumi, Gunma, JP;
Tsuyoshi Rakuma, Gunma, JP;
Sanyo Electric Co., Ltd., Moriguchi, JP;
Abstract
An object of the present invention is to provide a waste water treating method and a waste water treating apparatus which are capable of treating for-treatment water containing a nitrogen compound and a phosphorus compound at low costs and efficiently. The waste water treating method is a waste water treating method for treating a nitrogen compound (nitrate nitrogen) and a phosphorus compound (phosphate ions) in for-treatment water by electrolysis as an electrochemical process, the method comprises a first treating step of immersing a pair of electrodes in the for-treatment water at least partially so as to treat the for-treatment water by electrolysis, one of the electrodes being a cathode made of a conductive material and the other of the electrodes being an anode made of iron, and a second treating step of treating the for-treatment water with hypochlorous acid, ozone or active oxygen after completion of the first treating step.