Development of Trickling Bioreactor(TBR) for Trichloroethylene biodegradation by Pseudomonas cepacia G4

TBR에 공급되는 성장기질인 phenol의 농도에 따른 TCE 분해 효율 변화를 살펴보았다. Phenol 공급이 없는 경우에서의 TCE 제거효율은 평균 42.8%로 유지된 반면, phenol을 0.94 ppm 농도로 공급해줌으로써 TCE 분해 효율을 16% 정도 증가시킬 수 있었다. 따라서 TBR에 알맞은 양의 성장기질을 공급하면, TCE 분해 과정에서 불활성화되는 효소 및 세포의 재활성화를 통해 TCE 분해 효율이 증가시킬 수 있었다.

Lab-scale trickling bioreactor(TBR) containing the biofilm of Pseudomonas cepacia G4 was developed for the treatment of trichloroethylene(TCE) in a waste gas stream. The effect of phenol feeding on the efficiency of TCE biodegadation in TBR was investigated with the change of inlet phenol concentration from 0 to 4.71 ppm. When 0.94 ppm of phenol was supplied, the best performance of TBR was maintained with the TCE removal efficiency of 58.1%. These results showed that the appropriate supply of phenol could stimulate TCE removal efficiency in TBR.