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Waste Management & Research
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Efficiency of the Anaerobic Treatment of the Organic Fraction of Municipal Solid Waste: Collection and Pretreatment

Hinrich Hartmann

The Environmental Microbiology/Biotechnology Research Group, BioCentrum-DTU, Building 227, The Technical University of Denmark, 2800 Lyngby, Denmark

Henrik B. Møller

The Environmental Microbiology/Biotechnology Research Group, BioCentrum-DTU, Building 227, The Technical University of Denmark, 2800 Lyngby, Denmark Department of Agricultural Engineering, Research Center Bygholm, P.O. Box 536, 8700 Horsens, Denmark

Birgitte K. Ahring

The Environmental Microbiology/Biotechnology Research Group, BioCentrum-DTU, Building 227, The Technical University of Denmark, 2800 Lyngby, Denmark, bka{at}biocentrum.dtu.dk

This report is based on several years of co-operation between our research groups and Danish biogas plants. Throughout the years, there has been a fruitful exchange of know-how and experiences in laboratory scale on the one hand and large scale on the other, leading to a better understanding of the principles of the anaerobic digestion process and to an optimization of its large-scale implementation. In order to get an overview of the current situation concerning the treatment of the organic fraction of municipal solid waste (OFMSW) in Denmark, interviews were carried out with operators of the biogas plants where OFMSW is treated and the municipality staff responsible for waste management. With the aim of fulfilling the governmental goal to treat 150 000 tons of OFMSW by the year 2004 mainly by anaerobic digestion, the different municipalities are investigating different concepts of waste collection and treatment. The quality of the OFMSW treated is the key to smooth operation of the biogas process including a high biogas yield and production of an effluent that is feasible for use as fertilizer on agricultural land. Comparison of the different concepts leads to the conclusion that source-sorting of OFMSW in paper bags is preferable to collection in plastic bags and successive separation of plastics in a waste processing treatment plant.

Key Words: Anaerobic digestion • collection • municipal solid waste • pretreatment • wmr 607-6

Waste Management & Research, Vol. 22, No. 1, 35-41 (2004)
DOI: 10.1177/0734242X04042748
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