Anaerobic digestion of municipal solid waste: Utility of process residues as a soil amendment
- National Renewable Energy Labs., Golden, CO (United States); and others
Tuna processing wastes (sludges high in fat, oil, and grease [FOG]) and municipal solid waste (MSW) generated on Tutuila Island, American Samoa, represent an ongoing disposal challenge. The biological conversion of the organic fraction of these wastes to useful products, including methane and fertilizer-grade residue, through anaerobic high-solids digestion is currently in scale-up development. The suitability of the anaerobic digestion residues as a soil amendment was evaluated through extensive chemical analysis and greenhouse studies using corn as an indicator crop. Additionally, native Samoan soil was used to evaluate the specific application rates for the compost. Experiments established that anaerobic residues increase crop yields in direct proportion to increases in the application rate. Additionally, nutrient saturation was not demonstrated within the range of application rates evaluated for the Samoan soil. Beyond nutrient supplementation, organic residue amendment to Samoan soil imparts enhanced water and nutrient-binding capacities.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- OSTI ID:
- 150401
- Report Number(s):
- CONF-940526-; TRN: 95:007973-0013
- Resource Relation:
- Conference: 16. symposium on biotechnology for fuels and chemicals, Gatlinburg, TN (United States), 9-13 May 1994; Other Information: PBD: 1995; Related Information: Is Part Of Sixteenth symposium on biotechnology for fuels and chemicals; Davison, B.H. [ed.] [Oak Ridge National Lab., TN (United States)]; Wyman, C.E. [ed.] [National Renewable Energy Lab., Golden, CO (United States)]; PB: 823 p.
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
55 BIOLOGY AND MEDICINE
BASIC STUDIES
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
TUNA
SOLID WASTES
FOOD PROCESSING
ANAEROBIC DIGESTION
WASTE PRODUCT UTILIZATION
FEASIBILITY STUDIES
MUNICIPAL WASTES
BIOTECHNOLOGY
CHEMICAL ANALYSIS
COMPOST
BIOCONVERSION
METHANE
AMERICAN SAMOA