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Bioresour Technol

Title:		Anaerobic batch conversion of pine wood torrefaction condensate
Author(s):		Doddapaneni T; Praveenkumar R; Tolvanen H; Palmroth MRT; Konttinen J; Rintala J;
Address:		"Department of Chemistry and Bioengineering, Tampere University of Technology, P.O. Box 541, FI-33101 Tampere, Finland. Electronic address: tharaka.doddapaneni@tut.fi. Department of Chemistry and Bioengineering, Tampere University of Technology, P.O. Box 541, FI-33101 Tampere, Finland"
Journal Title:		Bioresour Technol
Year:		2017
Volume:		20161122
Issue:
Page Number:		299 - 307
DOI:		10.1016/j.biortech.2016.11.073
ISSN/ISBN:		1873-2976 (Electronic) 0960-8524 (Linking)
Abstract:		"Organic compound rich torrefaction condensate, owing to their high water content and acidic nature, have yet to be exploited for practical application. In this study, microbial conversion of torrefaction condensate from pine wood through anaerobic batch digestion (AD) to produce methane was evaluated. Torrefaction condensate exhibited high methane potentials in the range of 430-492mL/g volatile solids (VS) and 430-460mL/gVS under mesophilic and thermophilic conditions, respectively. Owing to the changes in the composition, the methane yields differed with the torrefaction condensates produced at different temperatures (225, 275 and 300 degrees C), with a maximum of 492+/-18mL/gVS with the condensate produced at 300 degrees C under mesophilic condition. The cyclic batch AD experiments showed that 0.1VS(substrate):VS(inoculum) is optimum, whereas the higher substrate loading (0.2-0.5) resulted in a reversible inhibition of the methane production. The results suggest that torrefaction condensate could be practically valorized through AD"
Keywords:		Anaerobiosis *Bioreactors Hot Temperature *Methane/analysis/biosynthesis/metabolism Pinus/*chemistry Wood/*chemistry Acetic acid Anaerobic digestion Condensate Methane Torrefaction;
Notes:		"MedlineDoddapaneni, Tharaka Rama Krishna C Praveenkumar, Ramasamy Tolvanen, Henrik Palmroth, Marja R T Konttinen, Jukka Rintala, Jukka eng England 2016/11/30 Bioresour Technol. 2017 Feb; 225:299-307. doi: 10.1016/j.biortech.2016.11.073. Epub 2016 Nov 22"