Two phase anaerobic digestion

Details Two phase anaerobic digestion Two phase anaerobic digestion

1984-10-30

1987-09-29

Castel, Benoit

Liquid purification or separation

Processes

Treatment by living organism

210218, 210253, 48197A, 435167, C02F 1104

Patent

active

046967460

ABSTRACT:
A two phase anaerobic digestion process for production of methane from organic carbonaceous material in which an active acid forming microbial population is maintained in a first acid forming digestion phase and an active methane forming microbial population is maintained in a second methane forming digestion phase, the liquid effluent from the acid forming digestion phase being passed to a first methane forming digester and gaseous product from the acid forming digestion phase being passed to a second separated methane forming digester for production of methane in the first and second methane forming digesters of the methane forming digestion phase. The two separated methane digestion phases provide increased overall methane production.

REFERENCES:
patent: 3383309 (1968-05-01), Chandler
patent: 4022665 (1977-05-01), Ghosh et al.
patent: 4289625 (1981-09-01), Tarman et al.

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