Biodegradation Kinetics of 4-Chlorophenol by Pseudomonas sp. EL-091S

Pseudomonas sp. EL-091S에 의한 4-Chlorophenol의 분해 Kinetics

  • Son, Jun-Seog (Department of Microbiology, College of Natural Science, Pusan National University) ;
  • Lee, Geon (Department of Microbiology, College of Natural Science, Pusan National University) ;
  • Lee, Sang-Joon (Department of Microbiology, College of Natural Science, Pusan National University)
  • 손준석 (부산대학교 자연과학대학 미생물학과) ;
  • 이건 (부산대학교 자연과학대학 미생물학과) ;
  • 이상준 (부산대학교 자연과학대학 미생물학과)
  • Published : 1993.06.01

Abstract

In order to find the most fitted biodegradation model, biodegradation models to the initial 4-chlorophenol concentrations were investigated and had been fitted by the linear regression. The degrading bacterium, EL-091S, was selected among phenol-degraders. The strain was identified with Pseudomows sp. from the result of taxonomical studies. The optimal condition for the biodegradation was as fellows: secondary carbon source, concentration of ammonium nitrate, temperature and pH were 200mg/l fructose, 600 mg/l, $30^{\circ}C$ and 7.0 respectively. The highest degradation rate of the 4-chlorophenol was about 58% for 24 hours incubation on the optimal condition. Biodegradation kinetics model of 5 mg/l 4-Chlorophenol, 10 mg/l 4-chlorophenol and 50 mg/l 4-chlorophenol were fitted the zero order kinetics model, respectively. Key Words : 4-chlorophenol, Pseudomonas sp., zero order kinetics model.

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