Anaerobic digestion and heat pumps: potential for energy recovery in a waste stream
Conference
·
· Biotechnol. Bioeng. Symp.; (United States)
OSTI ID:5354440
Anaerobic filter and sludge blanket reactors loaded at < 30 g COD/L/d with thermally conditioned sludge decant liquors from a 3.5 x 10/sup 7/ gal/d wastewater treatment plant resulted in a 50 to 68% chemical oxygen demand (COD) removal and production of 0.33 to 0.43 L CH/sub 4//g COD removed. COD removal and gas production were greater at 35/sup 0/C but there was relatively little performance difference between the two reactor designs except for greater solids loss from the sludge blanket reactor. A combination of anaerobic digestion and heat pumps applied to this decant liquor stream was calculated to provide as much as 25% savings in energy costs.
- Research Organization:
- Univ. of Wisconsin, Green Bay
- OSTI ID:
- 5354440
- Report Number(s):
- CONF-810554-
- Journal Information:
- Biotechnol. Bioeng. Symp.; (United States), Journal Name: Biotechnol. Bioeng. Symp.; (United States) Vol. 11; ISSN BIBSB
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
09 BIOMASS FUELS
140504* -- Solar Energy Conversion-- Biomass Production & Conversion-- (-1989)
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320304 -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Waste Heat Recovery & Utilization
320604 -- Energy Conservation
Consumption
& Utilization-- Municipalities & Community Systems-- Municipal Waste Management-- (1980-)
ANAEROBIC DIGESTION
BIOCONVERSION
CHEMICAL OXYGEN DEMAND
DIGESTION
ENERGY CONSERVATION
ENERGY RECOVERY
FILTERS
HEAT PUMPS
MANAGEMENT
PROCESSING
RECOVERY
SLUDGES
WASTE HEAT UTILIZATION
WASTE MANAGEMENT
WASTE PROCESSING
WASTE PRODUCT UTILIZATION
140504* -- Solar Energy Conversion-- Biomass Production & Conversion-- (-1989)
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320304 -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Waste Heat Recovery & Utilization
320604 -- Energy Conservation
Consumption
& Utilization-- Municipalities & Community Systems-- Municipal Waste Management-- (1980-)
ANAEROBIC DIGESTION
BIOCONVERSION
CHEMICAL OXYGEN DEMAND
DIGESTION
ENERGY CONSERVATION
ENERGY RECOVERY
FILTERS
HEAT PUMPS
MANAGEMENT
PROCESSING
RECOVERY
SLUDGES
WASTE HEAT UTILIZATION
WASTE MANAGEMENT
WASTE PROCESSING
WASTE PRODUCT UTILIZATION