Study of the performance of a thermophilic biological methanation system
dc.contributor.author | Guneratnam, Amita Jacob | |
dc.contributor.author | Ahern, Eoin | |
dc.contributor.author | FitzGerald, Jamie A. | |
dc.contributor.author | Jackson, Stephen A. | |
dc.contributor.author | Xia, Ao | |
dc.contributor.author | Dobson, Alan D. W. | |
dc.contributor.author | Murphy, Jerry D. | |
dc.contributor.funder | Science Foundation Ireland | en |
dc.contributor.funder | Gas Networks Ireland | en |
dc.date.accessioned | 2017-02-02T15:51:42Z | |
dc.date.available | 2017-02-02T15:51:42Z | |
dc.date.issued | 2016-11-18 | |
dc.date.updated | 2017-02-02T15:43:28Z | |
dc.description.abstract | This 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.sponsorship | Science 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.status | Peer reviewed | en |
dc.description.version | Accepted Version | en |
dc.format.mimetype | application/pdf | en |
dc.identifier.citation | Guneratnam, 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.2016.11.066 | en |
dc.identifier.doi | 10.1016/j.biortech.2016.11.066 | |
dc.identifier.endpage | 315 | en |
dc.identifier.issn | 0960-8524 | |
dc.identifier.journaltitle | Bioresource Technology | en |
dc.identifier.startpage | 308 | en |
dc.identifier.uri | https://hdl.handle.net/10468/3556 | |
dc.identifier.volume | 225 | en |
dc.language.iso | en | en |
dc.publisher | Elsevier | en |
dc.rights | © 2016 Elsevier Ltd. This manuscript version is made available under the CC-BY-NC-ND 4.0 license | en |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | en |
dc.subject | Biogas | en |
dc.subject | Power to gas | en |
dc.subject | Biological methanation | en |
dc.subject | Methanogenic archaea | en |
dc.subject | Volatile fatty acids | en |
dc.title | Study of the performance of a thermophilic biological methanation system | en |
dc.type | Article (peer-reviewed) | en |