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:
Apr. 09, 1985

Filed:

Oct. 14, 1982
Applicant:
Inventors:

Ryoichi Haga, Hitachi, JP;

Masahiko Ishida, Hitachi, JP;

Yoji Odawara, Hitachi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12P / ; C12N / ; C02F / ; C02F / ;
U.S. Cl.
CPC ...
435167 ; 435139 ; 435140 ; 435141 ; 435801 ; 435291 ; 435822 ; 435252 ; 210605 ; 210611 ; 210613 ; 210614 ; 210630 ;
Abstract

The present invention relates to an anaerobic digestion process of wastes containing cellulose, in which, after liquefying by bringing wastes containing cellulose in slurry state into contact with facultative anaerobic bacteria with pH adjusted between 6.5-8.0 and oxidation-reduction potential controlled between -50-300 mV with oxygen supply, the liquefied slurry is then converted into methane and carbon dioxide by bringing it into contact with obligatory anaerobic bacteria to recover methane efficiently.


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