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Title: Fast production of methane by anaerobic digestion. Annual progress report, May 24, 1976--May 23, 1977

Technical Report ·
DOI:https://doi.org/10.2172/5235042· OSTI ID:5235042

Since the productional cost of methane generated by anaerobic digestion of cellulose is on the economic borderline and the cost could be reduced by increasing the rate of the digestion process, a research program was undertaken to delineate the most promising areas of development. The concept that the step involving transfer of products from solution is rate-limiting and inhibiting in anaerobic digestion was supported by all evidence available. The most significant design implication of this concept is that faster gas production can be achieved in a two-stage digestion system in which unreactive solids are eliminated after the hydrolysis step so that the effluent to the gas-producing stage possesses a low viscosity. The advantages and disadvantages of three hydrolysis methods (enzymatic, anaerobic, and acid) are reviewed.

Research Organization:
Natural Dynamics, Des Moines, Iowa (USA)
DOE Contract Number:
EY-76-C-02-2900
OSTI ID:
5235042
Report Number(s):
COO-2900-7
Country of Publication:
United States
Language:
English