04213857 is referenced by 43 patents and cites 5 patents.

The present invention relates to a process for digestion treatment of organic wastes that are difficult to digest, with a high efficiency and an improved recovery rate of methane.

The wastes, before subjected to anaerobic treatment, are heated at 55.degree.-75.degree. C. within an acid or alkaline solution for dissolving digestible ingredients and the insoluble ingredients are eliminated before being transferred to an anaerobic digestion step. By exercising a pre-treatment for dissolving and separating digestible ingredients, the size of the container will be minimized as a result of the shortened time required for digestion and the recovery rate of methane will be improved.

Title
Anaerobic digestion process
Application Number
5/942285
Publication Number
4213857
Application Date
September 14, 1978
Publication Date
July 22, 1980
Inventor
Yoji Odawara
Hitachi
JP
Ryoichi Haga
Hitachi
JP
Masahiko Ishida
Hitachi
JP
Agent
Birch Stewart Kolasch and Birch
Assignee
The Agency of Industrial Science and Technology
JP
IPC
C02C 1/16
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