Methane generation from high-strength industrial wastes with the anaerobic biological fluidized bed
The anaerobic biological fluidized-bed process has been shown to be effective for the simultaneous generation of methane gas and stabilization of high-strength wastewaters. Presented is a compendium of pilot-scale testing on a variety of wastes including dairy, chemical, food processing, soft drink bottling, and heat treatment liquors. Results demonstrate that, in most cases, greater than 80% biological oxygen demand (BOD/sub 5/) reduction can be attained at organic loading rates of 16 kg chemical oxygen demand (COD)/m/sup 3//day or higher. The effect of organic loading for each class of waste is presented. The excellent compatibility of the biological fluidized-bed reactor concept with anaerobic treatment is due to many factors, the foremost being that fluidization of small-grained media results in extremely large surface areas for biological colonization (on the order of 300 m/sup 2//m/sup 3/) and consequently high biomass concentrations (8000 to 40,000 mg volatile suspended solids (VSS)/L). Because of this, long sludge retention times may be maintained at relatively short hydraulic residence times. The system is a net energy producer in most cases and normally shows a payback on the initial capital expenditure in less than five years.
- Research Organization:
- Ecolotrol, Inc., Bethpage, NY
- OSTI ID:
- 5267979
- Report Number(s):
- CONF-810554-
- Journal Information:
- Biotechnol. Bioeng. Symp.; (United States), Vol. 11; Conference: 3. symposium on biotechnology in energy production and conservation, Gatlinburg, TN, USA, 12 May 1981
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
09 BIOMASS FUELS
INDUSTRIAL WASTES
ANAEROBIC DIGESTION
METHANE
BIOSYNTHESIS
BEVERAGE INDUSTRY
CHEMICAL INDUSTRY
DAIRY INDUSTRY
FLUIDIZED BED
FOOD INDUSTRY
NET ENERGY
PAYBACK PERIOD
AGRICULTURE
ALKANES
BIOCONVERSION
DIGESTION
ENERGY
ENERGY ANALYSIS
HYDROCARBONS
INDUSTRY
MANAGEMENT
ORGANIC COMPOUNDS
PROCESSING
SYNTHESIS
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
320305* - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Industrial Waste Management
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090222 - Alcohol Fuels- Preparation from Wastes or Biomass- (1976-1989)