Enhancing biogas production from anaerobic biodegradation of the organic fraction of municipal solid waste through leachate blending and recirculation

Enhancing biogas production from anaerobic biodegradation of the organic fraction of municipal solid waste through leachate blending and recirculation

Leachate recirculation has a profound advantage on biodegradation of the organic fraction of municipal solid waste in landfills. Mature leachate from older sections of landfills (>10 years) and young leachate were blended and added to organic fraction of municipal solid waste in a series of biome...

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Bibliographic Details
Published in:Waste management & research Vol. 32; no. 10; pp. 939 - 946
Main Authors: Nair, Arjun, Sartaj, Majid, Kennedy, Kevin, Coelho, Nuno MG
Format: Journal Article
Language:English
Published: London, England SAGE Publications 01-10-2014
Sage Publications Ltd
Subjects:
Anaerobic biodegradation
Biodegradation
Biodegradation, Environmental
Biofuels - analysis
Biogas
Bioreactors
Blending
Composting
Landfill
Landfills
Leachates
Mixing ratio
Municipal landfills
Municipal solid waste
Municipal waste management
Refuse Disposal
Solid Waste - analysis
Solid waste management
Waste disposal
Waste Disposal Facilities
Waste disposal sites
Waste management industry
Water Pollutants, Chemical - analysis
Water Pollutants, Chemical - chemistry
biodegradability
bioreactor landfills
leachate recirculation
biomethane potential
Anaerobic digestion
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Summary:Leachate recirculation has a profound advantage on biodegradation of the organic fraction of municipal solid waste in landfills. Mature leachate from older sections of landfills (>10 years) and young leachate were blended and added to organic fraction of municipal solid waste in a series of biomethane potential assay experiments with different mixing ratios of mature and young leachate and their effect on biogas production was monitored. The improvement in biogas production was in the range of 19%−41% depending on the ratio of mixing old and new leachate. The results are conclusive that the biogas generation could be improved by blending the old and new leachate in a bioreactor landfill system as compared with a conventional system employed in bioreactor landfills today for recirculating the same age leachate.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:0734-242X
1096-3669
DOI:10.1177/0734242X14546036