| 학회 | 한국화학공학회 |
| 학술대회 | 1998년 가을 (10/23 ~ 10/24, 조선대학교) |
| 권호 | 4권 2호, p.2957 |
| 발표분야 | 생물화공 |
| 제목 | BTX의 생물학적 분해 |
| 초록 | Alcaligenes xylosoxidans Y234 isolated from oil-contaminated soil could degrade benzene, toluene and m-xylene in both aerobic and anaerobic conditions. o-Xylene andp-xylene were removed cometabolically in the presence of benzene or toluene. Microbialadaptation was discussed in terms of enzyme induction and applied to the rapiddegradation of BTX. When adapted to benzene, the cells induced morecatechol 1,2-dioxygenase than toluene- or phenol-adapted cells, which led to rapiddegradation of BTX. A novel hybrid bioreactor composed of a biofilter and abubble column bioreactor section was suggested to remove BTX in both gasand liquid phase simultaneously. It is also adequate for the treatment of highconcentration gaseous pollutants. And the hybrid bioreactor needs small area forinstallation and absorbs shock by fluctuation of inflow pollutants easily. Mathematicalanalysis of the hybrid bioreactor was conducted for the simulation of thedegradation behavior of BTX in the hybrid bioreactor. The model of bubble columnbioreactor section was developed by adopting the concept of CSTR (continuouslystirred tank reactor) and biofilter section by that of PFR (plug flow reactor). Thesimplified model well described the degradation behavior of benzene and was veryuseful to predict the effect of operation variables on the removal efficiency ofbenzene in the hybrid bioreactor. |
| 저자 | 염승호, 유영제 |
| 소속 | 서울대 |
| 키워드 | BTX; Alcaligenes; cometabolism; microbial adaptation; hybrid bioreactor |
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| 원문파일 | 초록 보기 |
