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Fermentation 2017, 3(3), 35; doi:10.3390/fermentation3030035

Codigestion of Untreated and Treated Sewage Sludge with the Organic Fraction of Municipal Solid Wastes

1
Mechanical Engineering Department, Al-Huson University College, Al-Balqa’ Applied University, P.O.Box 50, Al-Huson, 19117 Irbid, Jordan
2
Biomass Research Center, University of Perugia, CRB, Via G. Duranti, 06-125 Perugia, Italy
3
Department of Engineering, University of Perugia, Via Duranti 67, 06-125 Perugia, Italy
These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Received: 5 June 2017 / Revised: 4 July 2017 / Accepted: 15 July 2017 / Published: 27 July 2017
(This article belongs to the Special Issue Bioconversion Processes)
View Full-Text   |   Download PDF [1395 KB, uploaded 27 July 2017]   |  

Abstract

Disposal of biodegradable waste has become a stringent waste management and environmental issue. As a result, anaerobic digestion has become one of the best alternative technology to treat the organic fraction of municipal solid wastes and can be an important source of bioenergy. This study focuses on the evaluation of biogas and methane yields from the digestion and co-digestion of mixtures of waste untreated sludge and the organic fraction of municipal solid wastes. These are compared with the results obtained from the digestion and codigestion of mixtures containing waste active sludge and the organic fraction of municipal solid wastes. The two types of substrates were used to perform biomethanation potential tests, in mesophilic conditions (35 °C) at lab scale. It was observed a maximum biogas yield for 100% of untreated sewage sludge, corresponding to 0.644 Nm 3 /kg VS and 0.499 Nm 3 /kg VS of biogas and methane production respectively. The study also demonstrates the possibility of increasing biogas production up to 36% and methane content up to 94% using waste untreated sludge substrate in both digestion and codigestion, compared to waste active sludge substrate. View Full-Text
Keywords: co-digestion; sewage sludge; methane production; BMP; municipal solid waste co-digestion; sewage sludge; methane production; BMP; municipal solid waste
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Al bkoor Alrawashdeh, K.; Pugliese, A.; Slopiecka, K.; Pistolesi, V.; Massoli, S.; Bartocci, P.; Bidini, G.; Fantozzi, F. Codigestion of Untreated and Treated Sewage Sludge with the Organic Fraction of Municipal Solid Wastes. Fermentation 2017, 3, 35.

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