순환 유도관형 삼상 유동층 생물반응기에서 고정화 Pseudomonas putida 에 의한 페놀처리 = Phenol Degradation by Immobilized Pseudomonas putida in Draft - tube Three - phase Fluidized - bed Bioreactor

다국어 초록 (Multilingual Abstract)

The usability and operational stability of the draft-tube three-phase fluidized-bed reactor(DTFR) as a biofilm reactor are analyzed using the experimental results of phenol biodegradation by Pseudomonas putida mixed cultures immobilized on the activated carbon. The phenol conversions of greater than 95％ are obtained when the phenol loading is below 5g/L·day. But the phenol conversions decrease gradually with increasing the phenol loading beyond the value of 5g/L·day due to the augmentation of biofilm density which reduces the phenol diffusion rate into the biofilm. The operational stability of DTFR is more excellent than the conventional three-phase fluidized-bed reactor (CTFR), because DTFR restrains more efficiently the heavy growth of biofilm and could be operated for the more wider ranges of phenol loading.