Proceedings of the Korean Society of Soil and Groundwater Environment Conference (한국지하수토양환경학회:학술대회논문집)
- 2005.04a
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- Pages.127-130
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- 2005
대수층에서의 자연표류 실험을 통한 염화지방족 탄화수소화합물 오염 지하수의 생물학적 복원 타당성 연구
- Kim Jin-Uk ;
- Ha Cheol-Yun ;
- Kim Nam-Hui ;
- Hong Gwang-Pyo ;
- Gwon Su-Yeol ;
- An Yeong-Ho ;
- Ha Jun-Su ;
- Park Hu-Won ;
- Kim Yeong
- 김진욱 (환경시스템공학과, 고려대학교) ;
- 하철윤 (환경시스템공학과, 고려대학교) ;
- 김남희 (환경시스템공학과, 고려대학교) ;
- 홍광표 (환경시스템공학과, 고려대학교) ;
- 권수열 (환경보건학과, 한국방송통신대학교) ;
- 안영호 (건설환경공학부, 영남대학교) ;
- 하준수 ((주)그린텍환경컨설팅) ;
- 박후원 ((주)그린텍환경컨설팅) ;
- 김영 (환경시스템공학과, 고려대학교)
- Published : 2005.04.01
Abstract
The feasibility of stimulating in situ aerobic cometabolic activity of indigenous microorganisms was investigated in a trichloroethene(TCE)-contaminated aquifer, A series of single-well natural drift tests (SWNDT) was conducted by injecting site groundwater amended with a bromide tracer and combinations of toluene, oxygen, nitrate, ethylene and TCE into an existing monitoring well and by sampling the same well over time. Transformation of ethylene, a surrogate of overall TCE transformation activity, was also observed, and its transformation results in the production of ethylene oxide, suggesting that some tolune-oxidizing microorganisms stimulated may express a monooxygenase enzymes. Also in situ transformation of TCE was confirmed by dilution-adjusted data analysis developed in this study. These results indicate that, in this environment, toluene and oxygen additions stimulated the growth and aerobic cometabolic activity of indigenous microorganisms expressing monooxygenase enzymes and that these are responsible for observed toluene utilization and cometabolism of ethylene and TCE. The simple, low-cost field test method provides an effective method for conducting rapid field assessments and pilot testing of aerobic cometabolism of TCE, which has previously hindered application of this technology to groundwater remediation.