Methane production from cattle waste in laboratory reactors at 40/sup 0/ and 60/sup 0/C after solid-liquid separation

Journal Article · Sat Nov 01 04:00:00 EST 1980 · J. Dairy Sci.; (United States)

DOI:https://doi.org/10.3168/jds.S0022-0302(80)83164-X· OSTI ID:6711126

Rorick, M B; Spahr, S L; Bryant, M P

Whole dairy waste and liquid effluent separated from the same waste with a solid-liquid separator were fermented at mesophilic and thermophilic temperatures. Chemical analyses of the two materials were similar. Methane production was superior in thermophilic reactors. With substrates adjusted to 4.1% volatile solids, average methane production at 60/sup 0/C (166 ml/g volatile solids fed to reactors at 3- and 6-day retention time) was as efficient as at 40/sup 0/C (162 ml/g at 5- and 10-day retention times). Thermophilic reactors produced 1.67 liter methane/liter reactor per day as compared to .93 liter for mesophilic reactors. Efficiency of methanogenesis was no greater for whole waste than for separated effluent. Production of methane for the two substrates averaged over retention times and temperatures was 156 ml/g volatile solids fed to reactor for whole waste and 173 ml/g for separated effluent.

• Research Organization: Univ. of Illinois, Urbana
• OSTI ID: 6711126
• Journal Information: J. Dairy Sci.; (United States), Journal Name: J. Dairy Sci.; (United States) Vol. 63:11; ISSN JDSCA
• Country of Publication: United States
• Language: English

Related Subjects

550700* -- Microbiology
553000 -- Agriculture & Food Technology
59 BASIC BIOLOGICAL SCIENCES
60 APPLIED LIFE SCIENCES
ACTIVATED SLUDGE PROCESS
AGRICULTURAL WASTES
ALKANES
ANAEROBIC DIGESTION
ANIMAL FEEDS
ANIMALS
BACTERIA
BIOCONVERSION
CATTLE
CHEMICAL ANALYSIS
COWS
DIGESTION
DOMESTIC ANIMALS
FARMS
FEASIBILITY STUDIES
FERMENTATION
FERTILIZERS
FOOD
FORAGE
HYDROCARBONS
LIQUID WASTES
MAMMALS
MANAGEMENT
MANURES
MESOPHILIC CONDITIONS
METHANE
METHANOGENIC BACTERIA
MICROORGANISMS
ORGANIC COMPOUNDS
ORGANIC WASTES
PLANTS
POLLUTION CONTROL
PROCESSING
QUANTITATIVE CHEMICAL ANALYSIS
QUANTITY RATIO
RUMINANTS
SUBSTRATES
TEMPERATURE EFFECTS
THERMOPHILIC CONDITIONS
TIME DEPENDENCE
VERTEBRATES
WASTE MANAGEMENT
WASTE PROCESSING
WASTE PRODUCT UTILIZATION
WASTES