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dc.contributor.authorSvennevik, Oda K
dc.contributor.authorSolheim, Odd Egil
dc.contributor.authorBeck, Greeley
dc.contributor.authorSørland, Geir
dc.contributor.authorJonassen, Kjell Rune
dc.contributor.authorRus, Ester
dc.contributor.authorWestereng, Bjørge
dc.contributor.authorHorn, Svein Jarle
dc.contributor.authorHiggins, Matthew J
dc.contributor.authorNilsen, Pål Jahre
dc.identifier.citationWater Science and Technology. 2019, 80 (7), 1338-1346.nb_NO
dc.description.abstractOrganic waste fractions such as sewage sludge, food waste and manure can be stabilized by anaerobic digestion (AD) to produce renewable energy in the form of biogas. Following AD, the digested solid fraction (digestate) is usually dewatered to reduce the volume before transportation. Post-AD treatments such as the Post-AD thermal hydrolysis process (Post-AD THP) have been developed to improve the dewatering, but the mode of action is not well understood. In this study, samples from 32 commercial full-scale plants were used to assess the impact of Post-AD THP on a broad range of raw materials. Maximum dewatered cake solids after Post-AD THP was predicted by thermogravimetric analysis (TGA). Post-AD THP changed the moisture distribution of the samples by increasing the free water fraction. A consistent improvement in predicted dewatered cake solids was achieved across the 32 samples tested, on average increasing the dry solids concentration by 87%. A full-scale trial showed that dewatering Post-AD THP digestate at 80 °C improved dewatered cake solids above the predictions by TGA at 35 °C. In conclusion, dewatered cake solids were significantly improved by Post-AD THP, reducing the volume of dewatered cake for disposal.nb_NO
dc.publisherIWA Publishingnb_NO
dc.rightsNavngivelse 4.0 Internasjonal*
dc.titleEffects of post anaerobic digestion thermal hydrolysis on dewaterability and moisture distribution in digestatesnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.source.journalWater Science and Technologynb_NO
dc.description.localcode© 2019 The Authors This is an Open Access article distributed under the terms of the CreativeCommons Attribution Licence (CC BY 4.0), which permits copying,adaptation and redistribution, provided the original work is properly cited( doi: 10.2166/wst.2019.379nb_NO
cristin.unitnameInstitutt for kjemisk prosessteknologi

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Navngivelse 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Navngivelse 4.0 Internasjonal