Dry anaerobic fermentation
The advantages of using high total-solids concentrations for anaerobic fermentations of manures and crop residues are discussed. Studies conducted on dry anaerobic fermentation of organic residues to methane are described. Moisture content, NH/sub 3/-N concentration, and chloride concentration were tested. Anaerobic fermentations occurred in solids concentrations in excess of 20%. At initial concentrations of 40% or less, the reaction will be as complete as for liquid reactors given sufficient time. Above 30% total-solids concentration of manures, methane formation decreased. Acid formation was affected at total-solids levels that were higher than methane formation. A pilot scale batch reactor filled with 25% total-solids substrate of wheat straw, seeded with effluent from a daily manure anaerobic digester, produced methane for over 6 months. (DMC)
- Research Organization:
- Cornell Univ., NY
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 6872238
- Report Number(s):
- CONF-791072-
- Journal Information:
- Biotechnol. Bioeng. Symp.; (United States), Vol. 10; Conference: 2. symposium on biotechnology in energy production and conservation, Gatlinburg, TN, USA, 3 Oct 1979
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
AGRICULTURAL WASTES
ANAEROBIC DIGESTION
MANURES
METHANE
BIOSYNTHESIS
AMMONIA
CHLORIDES
GAS YIELDS
MOISTURE
QUANTITY RATIO
SOLID WASTES
ALKANES
BIOCONVERSION
CHLORINE COMPOUNDS
DIGESTION
HALIDES
HALOGEN COMPOUNDS
HYDRIDES
HYDROCARBONS
HYDROGEN COMPOUNDS
MANAGEMENT
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
ORGANIC COMPOUNDS
ORGANIC WASTES
PROCESSING
SYNTHESIS
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
YIELDS
090122* - Hydrocarbon Fuels- Preparation from Wastes or Biomass- (1976-1989)
320305 - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Industrial Waste Management
140504 - Solar Energy Conversion- Biomass Production & Conversion- (-1989)