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. 08, 2005

Filed:

Sep. 08, 2003
Applicants:

Naoki Hiro, Osaka, JP;

Masaki Moriizumi, Moriyama, JP;

Jun Hirose, Hirakata, JP;

Naoki Kitayama, Moriyama, JP;

Fumitake Kondo, Otsu, JP;

Inventors:

Naoki Hiro, Osaka, JP;

Masaki Moriizumi, Moriyama, JP;

Jun Hirose, Hirakata, JP;

Naoki Kitayama, Moriyama, JP;

Fumitake Kondo, Otsu, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F003/28 ; C02F001/461 ;
U.S. Cl.
CPC ...
Abstract

A waste treatment system permitting treatment of organic wastes at low cost is provided. In the waste treatment system, organic wastes such as sewage, garbage and sludge are introduced into a methane fermentation bath for anaerobic fermentation. The methane gas produced in the bath is refined in a gas holder and then supplied to an electric generator, where the methane gas is used as a raw material for power generation. Digested liquid within the methane fermentation bath is supplied to an electrolytic bath via a flow adjustment bath and a fine screen. In the electrolytic bath, the digested liquid is subjected to electrolysis, by applying potentials to an electrode pair in the electrolytic bath based on the electric power obtained by the electric generator. By the electrolysis, nitrogen components including organic nitrogen and ammonia nitrogen, and BOD, SS and phosphorus components are removed from the digested liquid.


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