Packed-bed systems, consisting of 0.5 L-flask filled with tire chips or ceramic cubes, were employed in the wet batch mesophilic anaerobic digestion of a mechanically sorted organic fraction of a municipal solid waste and in its co-digestion with manure. High methane production only occurred in the latter case. Successive batch experiments demonstrated the advantages of packed-bed biofilm systems, which displayed significantly higher methane production yields with no lag-phases. Tire chips, i.e. a non-cost recyclable non-biodegradable material, provide results similar to those of ceramic cubes. The highest methane yields were achieved in the bioreactors packed with tire chips in the presence of a mixture in which the VS provided by the municipal waste represented 48% of the total waste VS. Under such conditions, the methane yield was about 70 ml/g volatile solids, representing about the 42% of the biochemical methane potential, and the 41% of the initial VS were removed.

Anaerobic digestion of the mechanically sorted organic fraction of a municipal solid waste and its co-digestion with manure in packed-bed biofilm systems under batch conditions

BERTIN, LORENZO;TODARO, DANIELA;FAVA, FABIO
2008

Abstract

Packed-bed systems, consisting of 0.5 L-flask filled with tire chips or ceramic cubes, were employed in the wet batch mesophilic anaerobic digestion of a mechanically sorted organic fraction of a municipal solid waste and in its co-digestion with manure. High methane production only occurred in the latter case. Successive batch experiments demonstrated the advantages of packed-bed biofilm systems, which displayed significantly higher methane production yields with no lag-phases. Tire chips, i.e. a non-cost recyclable non-biodegradable material, provide results similar to those of ceramic cubes. The highest methane yields were achieved in the bioreactors packed with tire chips in the presence of a mixture in which the VS provided by the municipal waste represented 48% of the total waste VS. Under such conditions, the methane yield was about 70 ml/g volatile solids, representing about the 42% of the biochemical methane potential, and the 41% of the initial VS were removed.
2008
VTH INTERNATIONAL SYMPOSIUM ON ANAEROBIC DIGESTION OF SOLID WASTES AND ENERGY CROPS - Proceedings CD
7A5 - 1
7A5 - 7
L. Bertin; D. Todaro; F. Fava
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/70015
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