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dc.contributor.authorAl-Mashhadani, Mahmood K. H.*
dc.contributor.authorWilkinson, Stephen J.*
dc.contributor.authorZimmerman, William B.*
dc.date.accessioned2017-01-10T09:55:33Z
dc.date.available2017-01-10T09:55:33Z
dc.date.issued2016-12-15
dc.identifier.citationAl-mashhadani, M. K. H., Wilkinson, S. J., & Zimmerman, W. B. (2016). Carbon dioxide rich microbubble acceleration of biogas production in anaerobic digestion. Chemical Engineering Science, 156, 24-35en
dc.identifier.issn0009-2509
dc.identifier.doi10.1016/j.ces.2016.09.011
dc.identifier.urihttp://hdl.handle.net/10034/620313
dc.description.abstractThis paper addresses the use of anaerobic bacteria to convert carbon dioxide to biomethane as part of the biodegradation process of organic waste. The current study utilises gaslift bioreactors with microbubbles generated by fluidic oscillation to strip the methane produced in the gaslift bioreactor. Removal of methane makes its formation thermodynamically more favourable. In addition, intermittent sparging of microbubbles can prevent thermal stratification, maintain uniformity of the pH and increase the intimate contact between the feed and microbial culture with lower energy requirements than traditional mixing. A gaslift bioreactor with microbubble sparging has been implemented experimentally, using a range of carrier gas, culminating in pure carbon dioxide, in the anaerobic digestion process. The results obtained from the experiments show that the methane production rate is approximately doubled with pure carbon dioxide as the carrier gas for intermittent microbubble sparging.
dc.language.isoenen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectChemical engineeringen
dc.titleCarbon dioxide rich microbubble acceleration of biogas production in anaerobic digestionen
dc.typeArticleen
dc.identifier.eissn1873-4405
dc.identifier.journalChemical Engineering Science
dc.date.accepted2016-09-06
or.grant.openaccessYesen
rioxxterms.funderEPSRCen
rioxxterms.identifier.projectEP/I019790/1en
rioxxterms.versionAMen
rioxxterms.versionofrecordhttps://doi.org/10.1016/j.ces.2016.09.011
rioxxterms.licenseref.startdate2017-12-15
html.description.abstractThis paper addresses the use of anaerobic bacteria to convert carbon dioxide to biomethane as part of the biodegradation process of organic waste. The current study utilises gaslift bioreactors with microbubbles generated by fluidic oscillation to strip the methane produced in the gaslift bioreactor. Removal of methane makes its formation thermodynamically more favourable. In addition, intermittent sparging of microbubbles can prevent thermal stratification, maintain uniformity of the pH and increase the intimate contact between the feed and microbial culture with lower energy requirements than traditional mixing. A gaslift bioreactor with microbubble sparging has been implemented experimentally, using a range of carrier gas, culminating in pure carbon dioxide, in the anaerobic digestion process. The results obtained from the experiments show that the methane production rate is approximately doubled with pure carbon dioxide as the carrier gas for intermittent microbubble sparging.


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