Biodegradation of spent pulping liquor lignins under mesophilic and thermophilic anaerobic conditions

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TypeArticle
Journal titleTAPPI Journal
Volume2
Issue4
Pages2632; # of pages: 7
AbstractWe conducted a laboratory scale feasibility study on the anaerobic treatment of spent pulping liquor effluent in upflow anaerobic sludge bed reactors. Tests showed that, in spite of high levels of sodiuk and lignin in the liquor, up to 80% of CODs can be successfully removed at a specific removal rate of 0.22 g and 0.57 g COD g⁻¹ VSS d⁻¹ for mesophilic and thermophilic conditions, respectively. Throughout the experiment, lignin accumulation occurred in the mesophilic, but not in the thermophilic reactor. Lignin measurements confirmed that up to 59% of lignin was degraded under thermophilic conditions. Higher activity of thermophilic biomass coupled with higher solubility, and therefore bioavailability of lignin under thermophilic conditions, contributed to the observed lignin removal.
Publication date
Linkhttp://www.tappi.org/Bookstore/Technical-Papers/Journal-Articles/TAPPI-JOURNAL/Archives/2003/April/Biodegradation-of-spent-pulping-liquor-lignins-under-mesophilic-and-thermophilic-anaerobic-condition.aspx
LanguageEnglish
AffiliationNational Research Council Canada; NRC Biotechnology Research Institute
Peer reviewedNo
NRC number44674
NPARC number12327794
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Record identifierf5feb6c2-c3c7-4a23-87c8-c18b74d455ae
Record created2009-09-10
Record modified2016-05-09
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