On-farm anaerobic digester and fuel alcohol plant
An anaerobic digestion system was constructed and set up on a southern Illinois farm. The anaerobic digestion system was designed to be coupled with a fuel alcohol plant constructed by the farm family as part of an integrated farm energy system. The digester heating can be done using waste hot water from the alcohol plant and biogas from the digester can be used as fuel for the alcohol production. The anaerobic digestion system is made up of the following components. A hog finishing house, which already had a slotted floor and manure pit beneath it, was fitted with a system to scrape the manure into a feed slurry pit constructed at one end of the hog house. A solids handling pump feeds the manure from the feed slurry pit into the digester, a 13,000 gallon tank car body which has been insulated with styrofoam and buried underground. Another pump transfers effluent (digested manure) from the digester to a 150,000 gallon storage tank. The digested manure is then applied to cropland at appropriate times of the year. The digester temperature is maintained at the required level by automated hot water circulation through an internal heat exchanger. The biogas produced in the digester is pumped into a 32,000 gallon gas storage tank.
- OSTI ID:
- 6498419
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
090222* -- Alcohol Fuels-- Preparation from Wastes or Biomass-- (1976-1989)
140504 -- Solar Energy Conversion-- Biomass Production & Conversion-- (-1989)
42 ENGINEERING
420900 -- Engineering-- Waste Processing Plants & Equipment-- (-1989)
ABSTRACTS
AGRICULTURAL WASTES
ALCOHOL FUELS
ANAEROBIC DIGESTION
BIOCONVERSION
BIOGAS PROCESS
BIOMASS
CONVERSION
DIGESTION
DOCUMENT TYPES
ENERGY CONVERSION
ENERGY SOURCES
FARMS
FUELS
HEAT EXCHANGERS
LEADING ABSTRACT
MANAGEMENT
MANURES
ORGANIC WASTES
PROCESSING
PUMPING
RENEWABLE ENERGY SOURCES
SOLID WASTES
SYNTHETIC FUELS
WASTE MANAGEMENT
WASTE PROCESSING
WASTE PRODUCT UTILIZATION
WASTES