Assessment of continuous fermentative hydrogen and methane co-production using macro- and micro-algae with increasing organic loading rate

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dc.contributor.author Ding, Lingkan
dc.contributor.author Chan Gutierrez, Enrique
dc.contributor.author Cheng, Jun
dc.contributor.author Xia, Ao
dc.contributor.author O'Shea, Richard
dc.contributor.author Guneratnam, Amita Jacob
dc.contributor.author Murphy, Jerry D.
dc.date.accessioned 2018-04-04T10:24:11Z
dc.date.available 2018-04-04T10:24:11Z
dc.date.issued 2018-03-20
dc.identifier.citation Ding, L., Chan Gutierrez, E., Cheng, J., Xia, A., O'Shea, R., Guneratnam, A. J. and Murphy, J. D. (2018) 'Assessment of continuous fermentative hydrogen and methane co-production using macro- and micro-algae with increasing organic loading rate', Energy, 151, pp. 760-770. doi: 10.1016/j.energy.2018.03.103 en
dc.identifier.volume 151 en
dc.identifier.startpage 760 en
dc.identifier.endpage 770 en
dc.identifier.issn 0360-5442
dc.identifier.uri http://hdl.handle.net/10468/5730
dc.identifier.doi 10.1016/j.energy.2018.03.103
dc.description.abstract A two-stage continuous fermentative hydrogen and methane co-production using macro-algae (Laminaria digitata) and micro-algae (Arthrospira platensis) at a C/N ratio of 20 was established. The hydraulic retention time (HRT) of first-stage H2 reactor was 4 days. The highest specific hydrogen yield of 55.3 mL/g volatile solids (VS) was obtained at an organic loading rate (OLR) of 6.0 gVS/L/d. In the second-stage CH4 reactor at a short HRT of 12 days, a specific methane yield of 245.0 mL/gVS was achieved at a corresponding OLR of 2.0 gVS/L/d. At these loading rates, the two-stage continuous system offered process stability and effected an energy yield of 9.4 kJ/gVS, equivalent to 77.7% of that in an idealised batch system. However, further increases in OLR led to reduced hydrogen and methane yields in both reactors. The process was compared to a one-stage anaerobic co-digestion of algal mixtures at an HRT of 16 days. A remarkably high salinity level of 13.3 g/kg was recorded and volatile fatty acid accumulations were encountered in the one-stage CH4 reactor. The two-stage system offered better performances in both energy return and process stability. The gross energy potential of the advanced gaseous biofuels from this algal mixture may reach 213 GJ/ha/yr. en
dc.description.sponsorship Gas Networks Ireland (through the Green Gas Innovation Group and by ERVIA); National Natural Science Foundation of China (National Key Research and Development Program-China (2016YFE0117900)); Science and Technology Department of Zhejiang Province (Zhejiang Provincial Key Research and Development Program-China (2017C04001); Chongqing University (start-up funds under “One Hundred Talents Program”); Consejo Nacional de Ciencia y Tecnología and Consejo De Ciencia, Innovación Y Tecnología Del Estado De Yucatán (CONACYT-CONCITEY) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher Elsevier en
dc.relation.uri http://www.sciencedirect.com/science/article/pii/S0360544218305127
dc.rights © 2018 Elsevier Ltd. All rights reserved. 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 Macro-algae en
dc.subject Micro-algae en
dc.subject Two-stage co-fermentation en
dc.subject Hydrogen en
dc.subject Methane en
dc.title Assessment of continuous fermentative hydrogen and methane co-production using macro- and micro-algae with increasing organic loading rate 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 2020-03-20
dc.date.updated 2018-04-04T08:59:52Z
dc.description.version Accepted Version en
dc.internal.rssid 432558327
dc.contributor.funder Science Foundation Ireland en
dc.contributor.funder Chongqing University en
dc.contributor.funder Consejo Nacional de Ciencia y Tecnología en
dc.contributor.funder Science and Technology Department of Zhejiang Province en
dc.contributor.funder National Natural Science Foundation of China en
dc.contributor.funder Consejo De Ciencia, Innovación Y Tecnología Del Estado De Yucatán en
dc.contributor.funder Gas Networks Ireland en
dc.description.status Peer reviewed en
dc.identifier.journaltitle Energy en
dc.internal.copyrightchecked No !!CORA!! en
dc.internal.licenseacceptance Yes en
dc.internal.IRISemailaddress jerry.murphy@ucc.ie en
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/SFI/SFI Research Centres Supplement/12/RC/2305s2/IE/Marine Renewable Energy Ireland (MaREI) - The SFI Centre for Marine Renewable Energy Research Supplement/ en


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© 2018 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 © 2018 Elsevier Ltd. All rights reserved. This manuscript version is made available under the CC-BY-NC-ND 4.0 license.
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