Improving fermentative hydrogen and methane production from an algal bloom through hydrothermal/steam acid pretreatment

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dc.contributor.author Cheng, Jun
dc.contributor.author Yue, Liangchen
dc.contributor.author Ding, Lingkan
dc.contributor.author Li, Yu-You
dc.contributor.author Ye, Qing
dc.contributor.author Zhou, Junhu
dc.contributor.author Cen, Kefa
dc.contributor.author Lin, Richen
dc.date.accessioned 2019-05-03T08:59:01Z
dc.date.available 2019-05-03T08:59:01Z
dc.date.issued 2019-01-30
dc.identifier.citation Cheng, J., Yue, L., Ding, L., Li, Y.-Y., Ye, Q., Zhou, J., Cen, K. and Lin, R. (2019) 'Improving fermentative hydrogen and methane production from an algal bloom through hydrothermal/steam acid pretreatment', International Journal of Hydrogen Energy, 44(12), pp. 5812-5820. doi: 10.1016/j.ijhydene.2019.01.046 en
dc.identifier.volume 44 en
dc.identifier.issued 12 en
dc.identifier.startpage 5812 en
dc.identifier.endpage 5820 en
dc.identifier.issn 0360-3199
dc.identifier.uri http://hdl.handle.net/10468/7848
dc.identifier.doi 10.1016/j.ijhydene.2019.01.046 en
dc.description.abstract Algal blooms can be harvested as renewable biomass waste for gaseous biofuel production. However, the rigid cell structure of raw algae may hinder efficient microbial conversion for production of biohydrogen and biomethane. To improve the energy conversion efficiency, biomass from an algal bloom in Dianchi Lake was subjected to a hydrothermal/steam acid pretreatment prior to sequential dark hydrogen fermentation and anaerobic digestion. Results from X-ray diffraction and Fourier transform infrared spectroscopy suggest that hydrothermal acid pretreatment leads to stronger damage of the amorphous structure (including hemicellulose and amorphous cellulose) due to the acid pretreatment, as evidenced by the higher crystallinity index. Scanning electron microscopy analysis showed that smaller fragments (∼5 mm) and wider cell gaps (∼1 μm) on algal cell surfaces occurred after pretreatment. In comparison to steam acid pretreatment, hydrothermal acid pretreatment resulted in a maximum energy conversion efficiency of 44.1% as well as production of 24.96 mL H2/g total volatile solids (TVS) and 299.88 mL CH4/g TVS. en
dc.description.sponsorship National Key Research and Development Program, China ((2016YFE0117900); Zhejiang Provincial Key Research and Development Program, China (2017C0400); 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/S036031991930120X
dc.rights © 2018 Hydrogen Energy Publications LLC. Published by 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 Dianchi lake algal bloom en
dc.subject Hydrogen en
dc.subject Methane en
dc.subject Hydrothermal pretreatment en
dc.title Improving fermentative hydrogen and methane production from an algal bloom through hydrothermal/steam acid pretreatment en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Richen Lin, Environmental Research Institute, University College Cork, Cork, Ireland. +353-21-490-3000 Email: richen.lin@ucc.ie en
dc.internal.availability Full text available en
dc.check.info Access to this article is restricted until 24 months after publication at the request of the publisher en
dc.check.date 2021-01-30
dc.description.version Accepted Version en
dc.contributor.funder Key Technologies Research and Development Program en
dc.contributor.funder Horizon 2020 en
dc.contributor.funder Science Foundation Ireland en
dc.description.status Peer reviewed en
dc.identifier.journaltitle International Journal of Hydrogen Energy en
dc.internal.IRISemailaddress richen.lin@ucc.ie 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
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


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© 2018 Hydrogen Energy Publications LLC. Published by 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 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved. This manuscript version is made available under the CC-BY-NC-ND 4.0 license
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