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J Ind Microbiol Biotechnol

Title:		Themophilic biofiltration of methanol and alpha-pinene
Author(s):		Dhamwichukorn S; Kleinheinz GT; Bagley ST;
Address:		"Department of Biological Sciences, Michigan Technological University, Houghton 49931-1552, USA"
Journal Title:		J Ind Microbiol Biotechnol
Year:		2001
Volume:		26
Issue:		3
Page Number:		127 - 133
DOI:		10.1038/sj.jim.7000079
ISSN/ISBN:		1367-5435 (Print) 1367-5435 (Linking)
Abstract:		"Biofiltration systems utilizing thermophilic (55 degrees C) bacteria were constructed and tested for the removal of methanol and alpha-pinene--two important volatile organic compounds (VOCs) in the forest products industry. Thermophilic bacterial mixtures that can degrade both methanol and alpha-pinene were obtained via enrichment techniques. Two bench-scale thermophilic biofiltration systems (1085 and 1824 cm3) were used to examine compound removals at different residence times, with influent concentrations of 110 ppmv methanol and 15 ppmv alpha-pinene. At a residence time of 10.85 min, the smaller system had removal efficiencies of >98% for methanol, but only 23% for alpha-pinene. The larger system was operated with the same parameters to evaluate residence time and surfactant effects on compound removals. At a residence time of 18.24 min, both methanol and alpha-pinene removal rates were > or = 95%. However, a-pinene removal dropped to 26% at a residence time of 6.08 min; methanol removal was not affected. Subsequent addition of a surfactant mixture increased a-pinene removal to 94% at the shortest residence time. No residual alpha-pinene was detected with the support medium Celite R-635, indicating that the surfactant may increase mass transfer of alpha-pinene"
Keywords:		"Bacteria/growth & development/*metabolism Bicyclic Monoterpenes Biodegradation, Environmental Culture Media *Hot Temperature Industry Methanol/*metabolism *Monoterpenes Paper Terpenes/*metabolism Trees;"
Notes:		"MedlineDhamwichukorn, S Kleinheinz, G T Bagley, S T eng Evaluation Study Research Support, Non-U.S. Gov't Germany 2001/06/23 J Ind Microbiol Biotechnol. 2001 Mar; 26(3):127-33. doi: 10.1038/sj.jim.7000079"