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A simultaneous assessment of organic matter and trace elements bio-accessibility in substrate and digestate from an anaerobic digestion plant
University of Paris-Est, Laboratoire Géomatériaux et Environnement (EA 4508), UPEM, 77454 Marne-la-Vallée, France; University of Limoges, PEIRENE, Equipe Développement dindicateurs ou prévision de la qualité des eaux, URA IRSTEA, 123 Avenue Albert Thomas, 87060 Limoges Cedex, France. Electronic address: andreina.laera@u-pem.fr..
Linköping University, Department of Thematic Studies, Tema Environmental Change. Linköping University, Faculty of Arts and Sciences. Department of Thematic Studies-Environmental Change and Biogas Research Center, Linköping University, 581 83 Linköping, Sweden..
Department of Chemistry, Umeå University, 901 87 Umeå, Sweden..
University of Limoges, PEIRENE, Equipe Développement dindicateurs ou prévision de la qualité des eaux, URA IRSTEA, 123 Avenue Albert Thomas, 87060 Limoges Cedex, France..
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2019 (English)In: Bioresource Technology, ISSN 0960-8524, E-ISSN 1873-2976, Vol. 288, article id 121587Article in journal (Refereed) Published
Abstract [en]

This study evaluates a simultaneous assessment of organic matter (OM) and trace elements (TE) bio-accessibility in substrate and digestate from a full-scale anaerobic digester by a sequential OM extraction method. Simultaneous release of TE was determined along with the extraction of different OM fractions and the effects of extracting reagents on characteristics of OM were evaluated by nuclear magnetic resonance (NMR) spectroscopy. The reagents used for sequential extraction of OM were not enough selective. However, proteins were particularly removed by 0.1 M NaOH, while 72% H2SO4 mainly extracted hemicellulose and cellulose. The OM fractionation allowed for simultaneous extraction of greater than60% of total As, Cd, Co, Fe, Mn, Ni and Zn, while the extraction was limited for Al, Cr, Cu, Mo, and Pb. In substrate, greater than50% of total As, Co, Mn and Ni and less than40% of total Fe, Zn and Mo were identified in bio-accessible fractions. In digestate, all elements demonstrated poor bio-accessibility except for As.less thanbr /greater than (Copyright © 2019 Elsevier Ltd. All rights reserved.)

Place, publisher, year, edition, pages
Elsevier, 2019. Vol. 288, article id 121587
Keywords [en]
Sequential chemical extraction, Organic matter fractionation, Trace elements fractionation, NMR spectroscopy, Anaerobic co-digestion
National Category
Environmental Sciences
Identifiers
URN: urn:nbn:se:liu:diva-158478DOI: 10.1016/j.biortech.2019.121587ISI: 000472018100008PubMedID: 31200348Scopus ID: 2-s2.0-85067060677OAI: oai:DiVA.org:liu-158478DiVA, id: diva2:1333679
Note

Funding agencies:  European Unions Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant [643071]; Swedish Research Council Formas grant [2016-01054]

Available from: 2019-07-01 Created: 2019-07-01 Last updated: 2019-08-09Bibliographically approved

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Shakeri Yekta, SepehrDario, Mårten

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