Two phase anaerobic digestion

Details Two phase anaerobic digestion Two phase anaerobic digestion

1974-12-09

1977-05-10

Tanenholtz, Alvin E.

Textiles: fiber preparation

195104, 195144, C12D 310

Patent

active

040226654

ABSTRACT:
An improved two phase anaerobic digestion process in which an initial phase continually receives an organic feed for short detention times of less than two days under conditions which efficiently liquefy and breakdown the feed to lower molecular weight acids and other intermediates for conversion to methane. A succeeding phase is operated to treat the lower molecular weight acids and intermediates for detention times of about two to about seven days under conditions which efficiently lead to production of methane. The feed is loaded in the first phase at rates from about 1 to about 10 pounds of total organics per cubic foot per day; and the products from the initial phase are loaded in the succeeding phase at rates of about 0.1 to about 0.5 pounds total organics per cubic foot per day.

REFERENCES:
patent: 1990523 (1935-02-01), Buswell et al.
patent: 3640846 (1972-02-01), Johnson
Pohland, et al.; Biotechnol. and Bioeng. Symp. No. 2, by John Wiley & Son Inc. (1971).

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