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Effects of trace element addition on process stability during anaerobic co-digestion of OFMSW and slaughterhouse waste
Linköping University, Biogas Research Center. University of Agricultural Sciences, Uppsala, Sweden.
Linköping University, Biogas Research Center. Tekniska Verken and Linkoping AB, Department RandD Biogas, Linkoping, Sweden.
Linköping University, The Tema Institute, Tema Environmental Change. Linköping University, Faculty of Arts and Sciences. Linköping University, Biogas Research Center.
Linköping University, Biogas Research Center. Tekniska Verken and Linkoping AB, Department RandD Biogas, Linkoping, Sweden.
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2016 (English)In: Waste Management, ISSN 0956-053X, E-ISSN 1879-2456, Vol. 47, no Pt A, 11-20 p.Article in journal (Refereed) PublishedText
Abstract [en]

This study used semi-continuous laboratory scale biogas reactors to simulate the effects of trace-element addition in different combinations, while degrading the organic fraction of municipal solid waste and slaughterhouse waste. The results show that the combined addition of Fe, Co and Ni was superior to the addition of only Fe, Fe and Co or Fe and Ni. However, the addition of only Fe resulted in a more stable process than the combined addition of Fe and Co, perhaps indicating a too efficient acidogenesis and/or homoacetogenesis in relation to a Ni-deprived methanogenic population. The results were observed in terms of higher biogas production (+9%), biogas production rates (+35%) and reduced VFA concentration for combined addition compared to only Fe and Ni. The higher stability was supported by observations of differences in viscosity, intraday WA-and biogas kinetics as well as by the 16S rRNA gene and 16S rRNA of the methanogens.(c) 2015 Elsevier Ltd. All rights reserved.

Place, publisher, year, edition, pages
PERGAMON-ELSEVIER SCIENCE LTD , 2016. Vol. 47, no Pt A, 11-20 p.
Keyword [en]
Trace elements; Anaerobic digestion; OFMSW; Methanogenic population; Viscosity
National Category
Renewable Bioenergy Research Environmental Sciences related to Agriculture and Land-use
Identifiers
URN: urn:nbn:se:liu:diva-124642DOI: 10.1016/j.wasman.2015.03.007ISI: 000367857900003PubMedID: 25827257OAI: oai:DiVA.org:liu-124642DiVA: diva2:901596
Note

Funding Agencies|Swedish Energy Agency; Linkoping University; Tekniska verken i Linkoping AB; Scandinavian Biogas Fuels AB; NSR AB; Kemira OYJ

Available from: 2016-02-08 Created: 2016-02-08 Last updated: 2016-02-15

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Shakeri Yekta, SepehrSundberg, CarinaEjlertsson, JörgenSvensson, BoBjörn, Annika
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Biogas Research CenterTema Environmental ChangeFaculty of Arts and SciencesEnvironmental Technology and Management
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Waste Management
Renewable Bioenergy ResearchEnvironmental Sciences related to Agriculture and Land-use

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