Comparison of pre-treatments to reduce salinity and enhance biomethane yields of Laminaria digitata harvested in different seasons

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dc.check.date2019-08-16
dc.check.infoAccess to this article is restricted until 24 months after publication by request of the publisher.en
dc.contributor.authorTabassum, Muhammad Rizwan
dc.contributor.authorXia, Ao
dc.contributor.authorMurphy, Jerry D.
dc.contributor.funderScience Foundation Irelanden
dc.contributor.funderChongqing Universityen
dc.contributor.funderGas Networks Ireland
dc.contributor.funderErvia, Ireland
dc.date.accessioned2017-09-22T11:36:44Z
dc.date.available2017-09-22T11:36:44Z
dc.date.issued2017-08-16
dc.date.updated2017-09-22T11:24:55Z
dc.description.abstractPre-treatment can enhance anaerobic digestion of seaweed; however, seasonal variation in the biochemical composition of seaweed has a significant impact on the pre-treatment effect. In this study, various pre-treatments were employed for the brown seaweed Laminaria digitata harvested in March (with high ash content and low carbon to nitrogen (C:N) ratio) and September (with low ash content and high C:N ratio). Washing of L. digitata harvested in March with hot water (defined as 40 °C) removed 54% of the ash and improved the volatile solids (VS) content by 31% leading to an improved biomethane yield of 282 L CH4 kg VS−1. This pre-treatment affected a 16% increase in biodegradability, reduced salt accumulation in the digestate by 54%, and increased specific methane yield per wet weight by 25%. This level of effect was not noted for seaweed harvested in September, when the biodegradability is higher.en
dc.description.sponsorshipChongqing University (One Hundred Talents Program); Gas Networks Ireland (Gas Innovation Group)en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationTabassum, M. R., Xia, A. and Murphy, J. D. (2017) 'Comparison of pre-treatments to reduce salinity and enhance biomethane yields of Laminaria digitata harvested in different seasons', Energy, 140(1), pp. 546-551. doi:10.1016/j.energy.2017.08.070en
dc.identifier.doi10.1016/j.energy.2017.08.070
dc.identifier.endpage551en
dc.identifier.issn0360-5442
dc.identifier.issued1en
dc.identifier.journaltitleEnergyen
dc.identifier.startpage546en
dc.identifier.urihttps://hdl.handle.net/10468/4777
dc.identifier.volume140en
dc.language.isoenen
dc.publisherElsevier Ltd.en
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© 2017, Elsevier Ltd. All rights reserved. This manuscript version is made available under the CC-BY-NC-ND 4.0 license.en
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/en
dc.subjectSeaweeden
dc.subjectPre-treatmenten
dc.subjectAnaerobic digestionen
dc.subjectBiomethaneen
dc.titleComparison of pre-treatments to reduce salinity and enhance biomethane yields of Laminaria digitata harvested in different seasonsen
dc.typeArticle (peer-reviewed)en
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