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Effects of biological treatment on the chemical structure of dissolved lignin-related substances in effluent from thermomechanical pulping
Mid Sweden University, Faculty of Science, Technology and Media, Department of Natural Sciences, Engineering and Mathematics.
Mid Sweden University, Faculty of Science, Technology and Media, Department of Natural Sciences, Engineering and Mathematics.ORCID iD: 0000-0003-3407-7973
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2008 (English)In: Nordic Pulp & Paper Research Journal, ISSN 0283-2631, E-ISSN 2000-0669, Vol. 23, no 2, p. 164-171Article in journal (Refereed) Published
Abstract [en]

Effluent from a TMP-based pulp and paper mill was collected at the inlet and outlet of the mill's biological treatment plant and fractionated by sorption on XAD-8 resin and MTBE precipitation. Fractionation indicated that the refractory dissolved organic material in biologically treated effluent was mainly composed of lignin-related substances. Characterisation of the lignin-related substances by chromatographic and spectrometric methods confirmed the similarities of the isolated material and milled wood lignin. Fractionation and characterisation of alkali-extracted material from solids (biosludge) in biologically treated effluent found evidence of lignin-related material. Results indicated that biological treatment had altered the chemical structure and molar-mass distribution of dissolved lignin-related substances.

Place, publisher, year, edition, pages
2008. Vol. 23, no 2, p. 164-171
Keywords [en]
wastewater treatment, biodegradability, thermomechanical pulping, lignin, COD, chromatography, spectrometry
National Category
Paper, Pulp and Fiber Technology
Identifiers
URN: urn:nbn:se:miun:diva-7036DOI: 10.3183/NPPRJ-2008-23-02-p164-171ISI: 000258174600003Scopus ID: 2-s2.0-48849085080OAI: oai:DiVA.org:miun-7036DiVA, id: diva2:117403
Available from: 2008-11-13 Created: 2008-11-12 Last updated: 2017-12-14Bibliographically approved

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Andersson, KerstinNorgren, Magnus

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