Improving the stability of thermophilic anaerobic digesters treating SS-OFMSW through enrichment with compost and leachate seeds

Handle URI:
http://hdl.handle.net/10754/562667
Title:
Improving the stability of thermophilic anaerobic digesters treating SS-OFMSW through enrichment with compost and leachate seeds
Authors:
Ghanimeh, Sophia A.; El-Fadel, Mutasem E.; Saikaly, Pascal ( 0000-0001-7678-3986 )
Abstract:
This paper examines the potential of improving the stability of thermophilic anaerobic digestion of source-sorted organic fraction of municipal solid waste (SS-OFMSW) by adding leachate and compost during inoculation. For this purpose, two stable thermophilic digesters, A (control) and B (with added leachate and compost), were subjected to a sustained substrate shock by doubling the organic loading rate for one week. Feeding was suspended then gradually resumed to reach the pre-shock loading rate (2. gVS/l/d). Digester A failed, exhibiting excessive increase in acetate and a corresponding decrease in pH and methane generation, and lower COD and solids removal efficiencies. In contrast, digester B was able to restore its functionality with 90% recovery of pre-shock methane generation rate at stable pH, lower hydrogen levels, and reduced VFAs and ammonia accumulation. © 2012 Elsevier Ltd.
KAUST Department:
Biological and Environmental Sciences and Engineering (BESE) Division; Water Desalination and Reuse Research Center (WDRC); Environmental Science and Engineering Program; Environmental Biotechnology Research Group
Publisher:
Elsevier
Journal:
Bioresource Technology
Issue Date:
Mar-2013
DOI:
10.1016/j.biortech.2012.12.127
PubMed ID:
23340102
Type:
Article
ISSN:
09608524
Sponsors:
This work was supported by the National Council for Scientific Research, Lebanon and the Masri Institute of Energy and Natural Resources at the American University of Beirut. Special thanks are extended to the US Agency for International Development for its support in acquiring the automated bioreactors used in the experimental program. The authors thank Ms. Dana Al-Sanioura for assisting in operating and monitoring the bioreactors.
Appears in Collections:
Articles; Environmental Science and Engineering Program; Water Desalination and Reuse Research Center (WDRC); Biological and Environmental Sciences and Engineering (BESE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorGhanimeh, Sophia A.en
dc.contributor.authorEl-Fadel, Mutasem E.en
dc.contributor.authorSaikaly, Pascalen
dc.date.accessioned2015-08-03T11:00:34Zen
dc.date.available2015-08-03T11:00:34Zen
dc.date.issued2013-03en
dc.identifier.issn09608524en
dc.identifier.pmid23340102en
dc.identifier.doi10.1016/j.biortech.2012.12.127en
dc.identifier.urihttp://hdl.handle.net/10754/562667en
dc.description.abstractThis paper examines the potential of improving the stability of thermophilic anaerobic digestion of source-sorted organic fraction of municipal solid waste (SS-OFMSW) by adding leachate and compost during inoculation. For this purpose, two stable thermophilic digesters, A (control) and B (with added leachate and compost), were subjected to a sustained substrate shock by doubling the organic loading rate for one week. Feeding was suspended then gradually resumed to reach the pre-shock loading rate (2. gVS/l/d). Digester A failed, exhibiting excessive increase in acetate and a corresponding decrease in pH and methane generation, and lower COD and solids removal efficiencies. In contrast, digester B was able to restore its functionality with 90% recovery of pre-shock methane generation rate at stable pH, lower hydrogen levels, and reduced VFAs and ammonia accumulation. © 2012 Elsevier Ltd.en
dc.description.sponsorshipThis work was supported by the National Council for Scientific Research, Lebanon and the Masri Institute of Energy and Natural Resources at the American University of Beirut. Special thanks are extended to the US Agency for International Development for its support in acquiring the automated bioreactors used in the experimental program. The authors thank Ms. Dana Al-Sanioura for assisting in operating and monitoring the bioreactors.en
dc.publisherElsevieren
dc.subjectNon-acclimated seeden
dc.subjectShock-loaden
dc.subjectStabilityen
dc.subjectThermophilic anaerobic digestionen
dc.titleImproving the stability of thermophilic anaerobic digesters treating SS-OFMSW through enrichment with compost and leachate seedsen
dc.typeArticleen
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)en
dc.contributor.departmentEnvironmental Science and Engineering Programen
dc.contributor.departmentEnvironmental Biotechnology Research Groupen
dc.identifier.journalBioresource Technologyen
dc.contributor.institutionDepartment of Civil and Environmental Engineering, American University of Beirut, Lebanonen
kaust.authorSaikaly, Pascalen
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