Improved robustness of ex-situ biological methanation for electro-fuel production through the addition of graphene

Simple item page
dc.contributor.authorWu, Benteng
dc.contributor.authorLin, Richen
dc.contributor.authorKang, Xihui
dc.contributor.authorDeng, Chen
dc.contributor.authorDobson, Alan D. W.
dc.contributor.authorMurphy, Jerry D.
dc.contributor.funderEnvironmental Protection Agencyen
dc.contributor.funderScience Foundation Irelanden
dc.contributor.funderSustainable Energy Authority of Irelanden
dc.contributor.funderDepartment of the Environment, Climate and Communicationsen
dc.date.accessioned2022-07-25T13:53:29Z
dc.date.available2022-07-25T13:53:29Z
dc.date.issued2021-12
dc.date.updated2022-07-22T14:41:06Z
dc.description.abstractEx-situ biomethanation (CO2 + 4H(2)-> CH4 + 2H(2)O) can simultaneously achieve renewable electricity storage and CO2 valorisation. However, fluctuations in variable renewable electricity may lead to intermittent hydrogen supply, which is shown to adversely affect microbial activity and performance of the biomethanation process. Carbonaceous materials may act as an abiotic additive to enhance microbial robustness and improve system performance. Nanomaterial graphene and pyrochar were compared to assess their effects on biomethanation systems with an intermittent supply of hydrogen. Results revealed that intermittent gas supply caused deterioration in the restart performance with only 66% of theoretical methane production obtained in the control compared with 84% under steady state conditions. The addition of graphene in biomethanation led to 78% of the theoretical methane production after repetitive intermittent supply; this improvement is postulated to be due to its high electrical conductivity and large specific surface (500 m(2)/g). In comparison, pyrochar amendment did not lead to a significant improvement in upgrading performance. Microbial analysis showed that the OTUs affiliated to bacteria withinin the order SHA-98 (42.9% in abundance) and archaea from the genus Methanothermobacter (99%) may result in the establishment of a new syntrophic relationship to improve the robustness of biomethanation process.en
dc.description.sponsorshipEnvironmental Protection Agency – Ireland (Grant number 2018-RE-MS-13); Science Foundation Ireland (Grant number 16/SP/3829); Sustainable Energy Authority Ireland (RDD/00454)en
dc.description.statusPeer revieweden
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.articleid111690en
dc.identifier.citationWu, B., Lin, R., Kang, X., Deng, C., Dobson, A. D. W. and Murphy, J. D. (2021) 'Improved robustness of ex-situ biological methanation for electro-fuel production through the addition of graphene', Renewable & Sustainable Energy Reviews, 152, 111690 (13pp). doi: 10.1016/j.rser.2021.111690en
dc.identifier.doi10.1016/j.rser.2021.111690en
dc.identifier.endpage13en
dc.identifier.issn1364-0321
dc.identifier.journaltitleRenewable & Sustainable Energy Reviewsen
dc.identifier.startpage1en
dc.identifier.urihttps://hdl.handle.net/10468/13400
dc.identifier.volume152en
dc.language.isoenen
dc.publisherElsevieren
dc.relation.projectinfo:eu-repo/grantAgreement/SFI/SFI Research Centres/12/RC/2302/IE/Marine Renewable Energy Ireland (MaREI) - The SFI Centre for Marine Renewable Energy Research/en
dc.rights© 2021 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/)en
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en
dc.subjectMunicipal solid-wasteen
dc.subjectAnaerobic-digestionen
dc.subjectIn-situen
dc.subjectHydrogenotrophic communityen
dc.subjectSyntrophic metabolismen
dc.subjectAmmonia inhibitionen
dc.subjectFood wasteen
dc.subjectBiocharen
dc.subjectCarbonen
dc.subjectReactorsen
dc.titleImproved robustness of ex-situ biological methanation for electro-fuel production through the addition of grapheneen
dc.typeArticle (peer-reviewed)en
Files
Original bundle
Now showing 1 - 2 of 2
Thumbnail Image
Name:
1-s2.0-S1364032121009643-main.pdf
Size:
4.91 MB
Format:
Adobe Portable Document Format
Description:
Published Version
Download
Thumbnail Image
Name:
1-s2.0-S1364032121009643-mmc1.docx
Size:
174.86 KB
Format:
Microsoft Word XML
Description:
Supplementary Data
Download
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
2.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Civil and Environmental Engineering - Journal articles
Centre for Marine and Renewable Energy (MaREI) - Journal Articles
Microbiology - Journal Articles