Anaerobic digestion process

Details Anaerobic digestion process Anaerobic digestion process

1981-03-06

1982-10-19

Castel, Benoit

Liquid purification or separation

Processes

Treatment by living organism

210603, 210605, 210631, 210170, 48197A, 47 14, C02F 328, C02F 332

Patent

active

043549365

ABSTRACT:
Methane gas produced according to an anaerobic digestion of organic wastes is introduced into digested separated water which is alkalized by a photo-culture of algae, whereby impurity carbon dioxide gas is removed by absorption. Accordingly, methane of high concentration is recovered and at the same time, by-product algae is recycled as feedstock, and thereby improving the yield of methane.

REFERENCES:
patent: 4057401 (1977-11-01), Boblitz
patent: 4076515 (1978-02-01), Rickard
patent: 4134830 (1979-01-01), Skogman et al.
patent: 4209388 (1980-06-01), De Fraites
patent: 4213857 (1980-07-01), Ishida et al.
patent: 4267038 (1981-05-01), Thompson

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