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Waste Management & Research, Vol. 13, No. 2, 123-136 (1995)
DOI: 10.1177/0734242X9501300203

Biodegradability of the Organic Fraction of Municipal Solid Waste in a High-Solids Anaerobic Digester

Masoud Kayhanian

Department of Civil and Environmental Engineering, University of California at Davis, Davis, California 95616, U. S. A.

Three methods were used to estimate the ultimate biodegradability of the organic fraction of municipal solid waste. These methods included: long-term batch digestion studies, measurement of lignin content, and chemostat studies. The ultimate biodegradability values obtained from these methods were compared to a field operation using a pilot scale, high-solids, complete-mix, thermophilic, anaerobic digestion process. The biodegradability obtained from the pilot study, at a mass retention time of 30 days, was approximately 83 and 81% of the estimated values obtained from the lignin content and the batch study, respectively. In addition, it has been shown that the contents of the biodegradable volatile solids affects the prediction of biogas production rate, the computation of the organic loading rate, and feedstock C/N ratio.

Key Words: Biodegradability • biodegradable volatile solids (BVS) • biodegradable organic fraction of municipal solids waste (BOF/MSW) • high-solids anaerobic digestion process.


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H. Hartmann, H. B. Moller, and B. K. Ahring
Efficiency of the Anaerobic Treatment of the Organic Fraction of Municipal Solid Waste: Collection and Pretreatment
Waste Management Research, February 1, 2004; 22(1): 35 - 41.
[Abstract] [PDF]