Thermophilic biofiltration of methanol and alpha-pinene

Citation
S. Dhamwichukorn et al., Thermophilic biofiltration of methanol and alpha-pinene, J IND MIC B, 26(3), 2001, pp. 127-133
Citations number
29
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Biotecnology & Applied Microbiology",Microbiology
Journal title
JOURNAL OF INDUSTRIAL MICROBIOLOGY & BIOTECHNOLOGY
ISSN journal
1367-5435 → ACNP
Volume
26
Issue
3
Year of publication
2001
Pages
127 - 133
Database
ISI
SICI code
1367-5435(200103)26:3<127:TBOMAA>2.0.ZU;2-J
Abstract
Biofiltration systems utilizing thermophilic (55 degreesC) bacteria were co nstructed and tested for the removal of methanol and alpha -pinene - two im portant volatile organic compounds (VOCs) in the forest products industry. Thermophilic bacterial mixtures that can degrade both methanol and alpha -p inene were obtained via enrichment techniques. Two bench-scale thermophilic biofiltration systems (1085 and 1824 cm(3)) 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 parame ters 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 greater than or equal to 95%, However, alpha -pinene removal dr opped to 26% at a residence time of 6.08 min; methanol removal was not affe cted. Subsequent addition of a surfactant mixture increased alpha -pinene r emoval to 94% at the shortest residence time. No residual alpha -pinene was detected with the support medium Celite R-635, indicating that the surfact ant may increase mass transfer of alpha -pinene.