• Proceedings of the Korean Society for Applied Microbiology Conference
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• 2002.10a
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• pp.99-99
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• 2002

• Journal of Life Science
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• v.13 no.6
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• pp.970-975
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• 2003

Microbial trichloroethylene (TCE) degradation using trickling biofilter (TBF) is a cost-effective treatment method, in which monooxygenase (MO) fortuitously transforms TCE via cometabolism. Simple TBF, however, could not be stably operated for long-term treatment of TCE due to the contradictory characteristics of cometabolism. In this paper, microbial biocatalyst and biofilm reactor system, a two-stage continuous stirred tank reactor (CSTR)/TBF system using Burkholderia cepacia G4 and Methylosinus trichosporium OB3b, are evaluated for the long-term continuous treatment of TCE. The maximum TCE elimination capacities were in the range of 28 and 525 mg TCE/1$.$day. The reactor systems were stably operated for more than 3∼12 months.

• KSBB Journal
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• v.13 no.2
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• pp.141-146
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• 1998

To remove the low concentration of methane biologically, a three phase fluidized bed bioreactor immobilized with Methylosinus trichosporium OB3b was used. Optimum pH, temperature and bed height for the operation were pH7.0, 30$^\circ C$ and 150cm, respectively. For the inlet methane concentration of 100-400ppm and flow rate of 2-4L/min, the removal efficiencies of the bioreactor using the activated carbon as a carrier were the range of 54-71%, whereas those using the biosand were the range of 45-56%. It was found that activated carbon was more efficient than the biosand for the removal of methane. When aeration tank was equipped with the bioreactor, the removal efficiency increased to 6-13% and maximum removal rate obtained in the experiment was 1184mg.CH$_4$/min.