Increasing biogas yield of rural biogas digester by addition of NH/sub 4/HCO/sub 3/

Conference · Thu Dec 01 00:00:00 EST 1983 · Alternative Energy Sources; (United States)

OSTI ID:6562954

Sun, G C; Chen, G Q; Chen, M; Liu, K X; Zhou, S Y

By addition of 0.3% NH/sub 4/HCO/sub 3/ instead of animal manure into rural biogas digester in which the rotted rice straw was the major feedstock, the biogas yield doubled in comparison with the check digester (0.1 m/sup 3//m/sup 3//d) and the fertility of NH/sub 4/HCO/sub 3/ did not decrease because of biogas fermentation. Many digesters have been built in China. But, owing to the problems of improper management, unsuitable influent mixing, etc., neither digesters nor feedstock were fully utilized. In order to solve these problems, adding NH/sub 4/HCO/sub 3/ into digester instead of animal manure was tried. Its results showed that the suitable C/N ratio of influent mixing was obtained, the fertility of effluent went up, and biogas producing rate increased. The concentration of NH/sub 4/HCO/sub 3/ is 0.2-0.6%, but the optimal is 0.3%.

• Research Organization: Chengdu Institute of Biology Academia Sinica Chengdu, Sichuan
• OSTI ID: 6562954
• Report Number(s): CONF-831205-
• Journal Information: Alternative Energy Sources; (United States), Conference: 6. Miami international conference on alternative energy sources, Miami Beach, FL, USA, 12 Dec 1983
• Country of Publication: United States
• Language: English

Related Subjects

09 BIOMASS FUELS
ADDITIVES
CHEMICAL COMPOSITION
AGRICULTURAL WASTES
ANAEROBIC DIGESTION
BIOGAS PROCESS
METHANE
PRODUCTION
BIOREACTORS
FUEL GAS
MANURES
MIXING
NITRIC ACID ESTERS
QUANTITY RATIO
RURAL AREAS
ALKANES
BIOCONVERSION
DIGESTION
ESTERS
FLUIDS
FUELS
GAS FUELS
GASES
HYDROCARBONS
MANAGEMENT
ORGANIC COMPOUNDS
ORGANIC WASTES
PROCESSING
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
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