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

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dc.check.date2021-01-30
dc.check.infoAccess to this article is restricted until 24 months after publication at the request of the publisheren
dc.contributor.authorCheng, Jun
dc.contributor.authorYue, Liangchen
dc.contributor.authorDing, Lingkan
dc.contributor.authorLi, Yu-You
dc.contributor.authorYe, Qing
dc.contributor.authorZhou, Junhu
dc.contributor.authorCen, Kefa
dc.contributor.authorLin, Richen
dc.contributor.funderKey Technologies Research and Development Programen
dc.contributor.funderHorizon 2020en
dc.contributor.funderScience Foundation Irelanden
dc.date.accessioned2019-05-03T08:59:01Z
dc.date.available2019-05-03T08:59:01Z
dc.date.issued2019-01-30
dc.description.abstractAlgal 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.sponsorshipNational Key Research and Development Program, China ((2016YFE0117900); Zhejiang Provincial Key Research and Development Program, China (2017C0400);en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationCheng, 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.2019.01.046en
dc.identifier.doi10.1016/j.ijhydene.2019.01.046en
dc.identifier.endpage5820en
dc.identifier.issn0360-3199
dc.identifier.issued12en
dc.identifier.journaltitleInternational Journal of Hydrogen Energyen
dc.identifier.startpage5812en
dc.identifier.urihttps://hdl.handle.net/10468/7848
dc.identifier.volume44en
dc.language.isoenen
dc.publisherElsevieren
dc.relation.projectinfo: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/DIETen
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.relation.urihttp://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 licenseen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/en
dc.subjectDianchi lake algal bloomen
dc.subjectHydrogenen
dc.subjectMethaneen
dc.subjectHydrothermal pretreatmenten
dc.titleImproving fermentative hydrogen and methane production from an algal bloom through hydrothermal/steam acid pretreatmenten
dc.typeArticle (peer-reviewed)en
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