Bioconversion of MSW (municipal solid waste) and recovery of organic acids
Research was conducted to determine the feasibility of bioprocessing municipal solid waste (MSW) to produce organic acids and recover the acids for hydrocarbon fuels production. This work focused on acid production from anaerobic digestion of a simulated MSW material, and densified refuse-derived-fuel MSW substrate, using 5-L continuously stirred and 12-L packed bed anaerobic digesters. Methane generation was inhibited by heat treatment, addition of a methanogen inhibitory compound, low pH, inoculum from a long-term acid adapted culture, and short retention times. Steady state operation was reached with acid concentrations of 15,000 to 18,000 mg/L. Nitrogen supplementations to the feedstock increased volatile acid concentrations to between 27,000 to 30,000 mg/L. Aerobic sewage sludge additions to feedstock increased peak levels of acid production to 22,000 mg/L. Acid extraction with trioctylphosphine oxide (TOPO) in heptane extracted more than 82% of the acid content in a single extraction of digester fluids with 15,000 mg/L total acids. 9 refs., 3 figs., 1 tab.
- Research Organization:
- Argonne National Lab., IL (USA)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 5384441
- Report Number(s):
- CONF-871269-3; ON: DE88005992
- Resource Relation:
- Conference: Anaerobic digestion program review meeting, Golden, CO, USA, 1 Dec 1987; Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
Similar Records
Liquid-liquid extraction of short-chain organic acids from anaerobic digesters
Anaerobic bioconversion of municipal solid wastes using a novel high-solids reactor design: Maximum organic loading rate and comparison with low-solids reactor systems
Related Subjects
09 BIOMASS FUELS
ANAEROBIC DIGESTION
FEASIBILITY STUDIES
MATERIALS RECOVERY
MUNICIPAL WASTES
EXPERIMENT PLANNING
EXPERIMENTAL DATA
ORGANIC ACIDS
SYNTHETIC FUELS
BIOCONVERSION
DATA
DIGESTION
FUELS
INFORMATION
MANAGEMENT
NUMERICAL DATA
ORGANIC COMPOUNDS
PLANNING
PROCESSING
RECOVERY
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
320604* - Energy Conservation
Consumption
& Utilization- Municipalities & Community Systems- Municipal Waste Management- (1980-)
090400 - Solid Waste & Wood Fuels- (-1989)