Biodegradation and Kinetics of Trichloroethylene by Micrococcus sp. MS-64K

Micrococcus sp. MS-64K에 의한 Trichloroethylene의 분해특성 및 Kinetics

  • 김종수 (부산대학교 미생물학과) ;
  • 박근태 (부산대학교 미생물학과)
  • Published : 1997.10.01

Abstract

Microorganisms capable of degrading trlchloroethylene(TCEI using phenol as a induction substrate were isolated from industrial effluents and soil. The strain MS-64K which had the highest blodegradablllty was identified as the genus Micrococcus. The optimal conditions of medium for the growth and blodegadatlon of trlchloroethylene were observed as follows; the initial pH 7.0, trlchloroethylene 1, 000ppm as the carbon source, 0.2% ${(NH_4)}_2SO_4$, as the nitrogen source. respectively. Lag period and degradation time on optimal medium were shorter than those on Isolation medium. Growth on the optimal medium was Increased. Addition of 0.1% Triton X-100 Increased the growth rate of Micrococcus sp. MS-64K, but degradation was equal to optimal medium. Trlchloroethylene degradation by Micrococcus sp. MS-64K was shown to fit logarithmic model when the compound was added at initial concentration of 1, 000ppm.

Keywords

Trichloroethylene;Micrococcus sp.;biodegradation;logarithmic model

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