Effects of pre-treatment and biological acidification on fermentative hydrogen and methane co-production

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dc.contributor.author Sun, Chihe
dc.contributor.author Xia, Ao
dc.contributor.author Fu, Qian
dc.contributor.author Huang, Yun
dc.contributor.author Lin, Richen
dc.contributor.author Murphy, Jerry D.
dc.date.accessioned 2019-02-27T10:02:59Z
dc.date.available 2019-02-27T10:02:59Z
dc.date.issued 2019-02-19
dc.identifier.citation Sun, C., Xia, A., Fu, Q., Huang, Y., Lin, R. and Murphy, J. D. (2019) 'Effects of pre-treatment and biological acidification on fermentative hydrogen and methane co-production', Energy Conversion and Management, 185, pp. 431-441. doi:10.1016/j.enconman.2019.01.118 en
dc.identifier.volume 185 en
dc.identifier.startpage 431 en
dc.identifier.endpage 441 en
dc.identifier.issn 0196-8904
dc.identifier.uri http://hdl.handle.net/10468/7546
dc.identifier.doi 10.1016/j.enconman.2019.01.118
dc.description.abstract A sequential two-stage process comprising biological acidification followed by anaerobic digestion was proposed to enhance gaseous biofuel production from the mixture of rice residue and micro-algae after thermo-chemicial hydrolysis. The maximum specific hydrogen yield of 223.1 ± 8.8 mL/g volatile solids (VS) and production rate of 10.4 ± 0.4 mL/g VS/h were achieved from hydrothermal acid pre-treated biomass during biological acidification. Increase in hydraulic retention time of biological acidification from 12 to 144 h significantly affected the distribution of solubilised metabolic products and led to improved biological acidification rates (BARs) from 15.5% to 78.5%. Compared with single stage anaerobic digestion, the first stage acidification phase led to reductions in the lag-phase time and peak time of anaerobic digestion in such a two-stage process. The maximum specific methane production rate of 2.2 ± 0.03 mL/g VS/h was achieved with a deep acidification of 144 h yielding a BAR of 78.5%. Increasing the length of time in biological acidification from 12 to 144 h contributed to improved energy conversion efficiency of 25.4%–64% after 120 h of anaerobic digestion. These results demonstrate that biological acidification is feasible to improve bioenergy recovery in two-stage fermentation. en
dc.description.sponsorship National Science Foundation for Young Scientists of China (No. 51606021); State Key Program of National Natural Science of China (No. 51836001); Venture and Innovation Support Program for Chongqing Overseas Returnees (No. cx2017019); Fundamental Research Funds for the Central Universities (Nos. 2018CDXYDL0001, 2018CDYJSY0055) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher Elsevier Ltd. en
dc.relation.uri http://www.sciencedirect.com/science/article/pii/S0196890419301943
dc.rights © 2019, Elsevier Ltd. All rights reserved. This manuscript version is made available under the CC BY-NC-ND 4.0 license. en
dc.rights.uri https://creativecommons.org/licenses/by-nc-nd/4.0/ en
dc.subject Fermentation en
dc.subject Hydraulic retention time en
dc.subject Biological acidification en
dc.subject Biomethane en
dc.subject Algae en
dc.subject Food waste en
dc.title Effects of pre-treatment and biological acidification on fermentative hydrogen and methane co-production en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Jeremiah D.G. Murphy, Civil Engineering, University College Cork, Cork, Ireland. +353-21-490-3000 Email: jerry.murphy@ucc.ie en
dc.internal.availability Full text available en
dc.check.info Access to this article is restricted until 24 months after publication by request of the publisher. en
dc.check.date 2021-02-19
dc.date.updated 2019-02-27T09:40:15Z
dc.description.version Accepted Version en
dc.internal.rssid 475150072
dc.contributor.funder Science Foundation Ireland en
dc.contributor.funder Horizon 2020 en
dc.contributor.funder National Natural Science Foundation of China en
dc.contributor.funder Venture and Innovation Support Program for Chongqing Overseas Returnees, China
dc.contributor.funder National Science Foundation for Young Scientists of China
dc.contributor.funder Fundamental Research Funds for the Central Universities, China
dc.description.status Peer reviewed en
dc.identifier.journaltitle Energy Conversion and Management en
dc.internal.copyrightchecked Yes en
dc.internal.licenseacceptance Yes en
dc.internal.IRISemailaddress jerry.murphy@ucc.ie en
dc.internal.IRISemailaddress richen.lin@ucc.ie
dc.relation.project info: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.relation.project info:eu-repo/grantAgreement/EC/H2020::MSCA-IF-EF-ST/797259/EU/Direct Interspecies Electron Transfer in advanced anaerobic digestion system for gaseous transport biofuel production/DIET en


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© 2019, Elsevier Ltd. All rights reserved. This manuscript version is made available under the CC BY-NC-ND 4.0 license. Except where otherwise noted, this item's license is described as © 2019, Elsevier Ltd. All rights reserved. This manuscript version is made available under the CC BY-NC-ND 4.0 license.
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