Potential of biological methane generation from chicken manure

Journal Article · Thu Oct 01 04:00:00 EDT 1981 · Biotechnol. Bioeng.; (United States)

DOI:https://doi.org/10.1002/bit.260231013· OSTI ID:5136167

Huang, J J.H.; Shih, J C.H.

The potential for biological methane generation from the manure of laying hens was investigated in the laboratory. Fresh manure was collected, analyzed, and used to prepare medium for bacterial growth. At 55 degrees Celcius and under anaerobic conditions, methanogenic cultures were initiated by incubating the medium with different inoculations from various natural environments. Since there were no significant differences in gas production among these initiated cultures after 40 days of acclimation, they were mixed to maintain a genetic pool. The mixed culture was then challenged with different retention times (RT) and different volatile solid (VS) concentrations for the selection of optimal conditions and cultures. The conditions were finally selected to be 4-day RT and 6% VS for the maximal rate of gas production. The optimal pH and temperature were determined to be 7.5 and 50 degrees Celcius, respectively. Under such conditions the selected culture produced total gas at a rate 4.5 L/L day and methane (70% of total gas) 3.2 L/L day. The chicken manure therefore was able to support the methane yield at 270 L/kg of VS, a value comparably higher than other kinds of livestock wastes. (Refs. 8).

• Research Organization: Lab. of Applied Biochemistry, Dept. of Poultry Science, North Carolina State Univ., Raleigh, North Carolina 27650
• OSTI ID: 5136167
• Journal Information: Biotechnol. Bioeng.; (United States), Journal Name: Biotechnol. Bioeng.; (United States) Vol. 23:10; ISSN BIBIA
• Country of Publication: United States
• Language: English

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32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320305 -- Energy Conservation
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& Utilization-- Industrial & Agricultural Processes-- Industrial Waste Management
AGRICULTURAL WASTES
ALKANES
ANAEROBIC DIGESTION
ANIMALS
BACTERIA
BENCH-SCALE EXPERIMENTS
BIOCONVERSION
BIOSYNTHESIS
BIRDS
CHICKENS
DIGESTION
FEDERAL REGION IV
FOWL
HYDROCARBONS
INCUBATION
INOCULATION
MANAGEMENT
MANURES
METHANE
METHANOGENIC BACTERIA
MICROORGANISMS
NORTH AMERICA
NORTH CAROLINA
ORGANIC COMPOUNDS
ORGANIC WASTES
PROCESSING
PRODUCTION
SYNTHESIS
USA
VERTEBRATES
WASTE MANAGEMENT
WASTE PROCESSING
WASTES