Study of the performance of a thermophilic biological methanation system

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dc.contributor.authorGuneratnam, Amita Jacob
dc.contributor.authorAhern, Eoin
dc.contributor.authorFitzGerald, Jamie A.
dc.contributor.authorJackson, Stephen A.
dc.contributor.authorXia, Ao
dc.contributor.authorDobson, Alan D. W.
dc.contributor.authorMurphy, Jerry D.
dc.contributor.funderScience Foundation Irelanden
dc.contributor.funderGas Networks Irelanden
dc.date.accessioned2017-02-02T15:51:42Z
dc.date.available2017-02-02T15:51:42Z
dc.date.issued2016-11-18
dc.date.updated2017-02-02T15:43:28Z
dc.description.abstractThis study investigated the operation of ex-situ biological methanation at two thermophilic temperatures (55 °C and 65 °C). Methane composition of 85–88% was obtained and volumetric productivities of 0.45 and 0.4 L CH4/L reactor were observed at 55 °C and 65 °C after 24 h respectively. It is postulated that at 55 °C the process operated as a mixed culture as the residual organic substrates in the starting inoculum were still available. These were consumed prior to the assessment at 65 °C; thus the methanogens were now dependent on gaseous substrates CO2 and H2. The experiment was repeated at 65 °C with fresh inoculum (a mixed culture); methane composition and volumetric productivity of 92% and 0.46 L CH4/L reactor were achieved in 24 h. Methanothermobacter species represent likely and resilient candidates for thermophilic biogas upgrading.en
dc.description.sponsorshipScience Foundation Ireland (Centre for Marine and Renewable Energy (MaREI) under Grant No. 12/RC/2302); Gas Networks Ireland (GNI through the Gas Innovation Group and by ERVIA.)en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationGuneratnam, A. J., Ahern, E., FitzGerald, J. A., Jackson, S. A., Xia, A., Dobson, A. D. W. and Murphy, J. D. (2017) 'Study of the performance of a thermophilic biological methanation system', Bioresource Technology, 225, pp. 308-315. doi:10.1016/j.biortech.2016.11.066en
dc.identifier.doi10.1016/j.biortech.2016.11.066
dc.identifier.endpage315en
dc.identifier.issn0960-8524
dc.identifier.journaltitleBioresource Technologyen
dc.identifier.startpage308en
dc.identifier.urihttps://hdl.handle.net/10468/3556
dc.identifier.volume225en
dc.language.isoenen
dc.publisherElsevieren
dc.rights© 2016 Elsevier Ltd. This manuscript version is made available under the CC-BY-NC-ND 4.0 licenseen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/en
dc.subjectBiogasen
dc.subjectPower to gasen
dc.subjectBiological methanationen
dc.subjectMethanogenic archaeaen
dc.subjectVolatile fatty acidsen
dc.titleStudy of the performance of a thermophilic biological methanation systemen
dc.typeArticle (peer-reviewed)en
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