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.

Date of Patent:
Feb. 13, 2007

Filed:

Apr. 14, 2004
Applicants:

Atsushi Yamada, Gunma, JP;

Mineo Ikematsu, Ibaraki, JP;

Masahiro Iseki, Saitama, JP;

Daizo Takaoka, Gunma, JP;

Yui Ogawa, Gunma, JP;

Yoshihiro Kurokawa, Gunma, JP;

Inventors:

Atsushi Yamada, Gunma, JP;

Mineo Ikematsu, Ibaraki, JP;

Masahiro Iseki, Saitama, JP;

Daizo Takaoka, Gunma, JP;

Yui Ogawa, Gunma, JP;

Yoshihiro Kurokawa, Gunma, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

There is provided a method for treating for-treatment waste water containing an organic matter and a nitrogen compound, which can quickly and efficiently treat the for-treatment water containing the organic matter and the nitrogen compound and greatly reduce a power consumption amount, and which can be achieved by a relatively compact apparatus. A gist is that in treatment of the for-treatment water containing the organic matter and the nitrogen compound, the followings are carried out: an electrochemical treatment step of immersing at least a pair of electrodes at least partially in the for-treatment water to treat the nitrogen compound thereof by an electrochemical technique; and a biochemical treatment step of biochemically treating the nitrogen compound in the for-treatment water after completion of the electrochemical treatment step.


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