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Lignin removal from wastewater by adsorption
Mid Sweden University, Faculty of Science, Technology and Media, Department of Natural Sciences, Engineering and Mathematics. (FSCN)
Mid Sweden University, Faculty of Science, Technology and Media, Department of Natural Sciences, Engineering and Mathematics.ORCID iD: 0000-0003-3407-7973
SCA R and D Centre, Sundsvall, Sweden.
2009 (English)In: Proceedings - 2009 International Mechanical Pulping Conference, IMPC 2009, 2009, p. 280-285Conference paper, Published paper (Refereed)
Abstract [en]

Lignin contributes to residual COD in wastewater after biological treatment. Available methods for removal of recalcitrant material like lignin, e.g. chemical oxidation and coagulation, are associated with heavy operational expenses. Stringent discharge requirements demand new cost-effective methods for removal of recalcitrant COD. Adsorption is an important mechanism for lignin removal in biological wastewater treatment. A study of lignin, using activated carbon as a model adsorbent, was performed to learn more about the adsorption behaviour of lignin. At the adsorbent dose 4 g/L and an initial lignin concentration of 0.5 g/L, 77% of the lignin was removed after six hours. The adsorption kinetics was found to follow the pseudo second-order rate expression and no temperature dependency could be observed in the temperature range studied.

 

 

Place, publisher, year, edition, pages
2009. p. 280-285
National Category
Chemical Engineering
Identifiers
URN: urn:nbn:se:miun:diva-11829Scopus ID: 2-s2.0-77951104662OAI: oai:DiVA.org:miun-11829DiVA, id: diva2:329714
Conference
2009 International Mechanical Pulping Conference, IMPC 2009; Sundsvall; 31 May 2009 through 4 June 2009
Available from: 2010-07-13 Created: 2010-07-13 Last updated: 2012-03-02Bibliographically approved

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Andersson, Kerstin INorgren, Magnus

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