The Phenol Wastewater Treatment by Candida tropicalis in Fluidized Bed Biofilm Reactor

유동층 반응기에서 Candida tropicalis 균에 의한 페놀함유 폐수처리에 관한 연구

  • Kim, Woo Sik (Department of Chemical Engineering, Yonsei University) ;
  • Youm, Kyung Ho (Department of Chemical Engineering, Yonsei University) ;
  • Kim, Eung Sik (Department of Chemical Engineering, Yonsei University)
  • 김우식 (연세대학교 공과대학 화학공학과) ;
  • 염경호 (연세대학교 공과대학 화학공학과) ;
  • 김응식 (연세대학교 공과대학 화학공학과)
  • Received : 1985.01.29
  • Published : 1985.03.01

Abstract

The effects of initial concentration, flow rate, and recycle ratio on the removal efficiency of phenol were studied in a tapered fluidized bed reactor packed with activated carbon which was attached with Candida tropicalis. The optimum conditions of Candida tropicalis were showed that pH was 7.0 and temperature was $30^{\circ}C$, and the specific growth rate of Candida tropicalis was satisfied with the Monod equation up to 500 mg/L of phenol, and beyond it the inhibition of substrate was found. According to the increases of initial concentration and flow rate, the removal efficiency was decreased, as the recycle ratio was increased, the removal efficiency was increased. In the case of flow rate of 10mL/sec and the recycle ratio of 2, the removal efficiency was 90% above for the all of initial concentration. The removal rate of phenol was the first order reaction in this system, and the rate equation of reaction was as follows.

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Acknowledgement

Supported by : 한국과학재단