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:
Dec. 09, 2003
Filed:
Dec. 17, 2001
Takaaki Maekawa, Ibaraki, JP;
Bioelex Corporation, Hokkaido, JP;
Abstract
Provided by the invention is a reactor for two-phase methane fermentation of organic waste materials such as livestock excrements which can be operated for a long period with stability. The apparatus comprises an acid fermentation tank ( ) connected to a feed tank, a methane fermentation tank ( ) partitioned from the acid fermentation tank ( ) with a partition wall ( ) having a gate valve ( A) and a settling tank ( ) partitioned from the methane fermentation tank ( ) by a second partition wall ( ) having a gate valve ( A) and the space in the upper part of the methane fermentation tank ( ) serves as a gas holder ( ). The methane gas generated in the methane fermentation tank ( ) and collected in the gas holder ( ) is taken out from a methane outlet pipeline ( ) opening in the canopy of the gas holder ( ).