Abstract
References
Information
This study was to evaluate sorption and biodegradation rate affecting the natural dissipation of chlorinated volatile organic compounds (CVOCs) in surface soil. To show the effect of sorption and biodegradation on the natural dissipation of 1,1,1-trichloroethane (TCA), trichloroethylene (TCE) and tetrachloroethylene (PCE), three types of vial experiments were employed; (1) sterilized, (2) non-sterilized, (3) non-sterilized/substrate enriched. Also three moisture contents was applied to find the moisture effect in each vial; (1) wilting point (12%, w/w), (2) field capacity (29%, w/w), (3) saturation (48%, w/w). The results suggested that keeping the soil moisture content at field capacity was desirable for TCA and TCE natural dissipation in the vial study.
본 연구에서는 토양에 유출된 염소계 휘발성 유기물질의 자연저감에 대한 흡착과 미생물분해의 영향을 알아보았다. 대표적인 염소계 휘발성 유기물질인 TCA (1,1,1-trichloroethane), TCE (trichloroethylene) 및 PCE (tetrachloro ethylene)의 자연저감율을 비교하기 위해 세가지 조건에서 바이얼 실험을 수행하였다; (1) 멸균, (2) 비멸균 그리고 (3) 비멸균/탄소원첨가. 또한 각각의 조건에서 수분함량에 의한 영향을 알아보기 위해 세 가지로 적용하였다; (1) wilting point (12%, w/w), (2) field capacity (29%, w/w), (3) saturation (48%, w/w). 100일 경과 후, TCA 및 TCE는 field capacity에서 미생물에 의한 자연저감이 상대적으로 활발히 일어났다. 비멸균/탄소원 첨가 토양은 멸균한 토양에 비해 유기물질의 제거율에서 현격한 차이를 나타내었다. PCE는 미생물 및 탄소원 첨가에 의한 영향을 보이지 않았다.
- Anderson, J.E. and McCarty, P.L., 1997, Transformation yields of chlorinated ethenes by a methanotrophic mixed culture expressing particulate methane monooxygenase, Appl. and Environ. Microbiol., 63, 687-693
- Domenico, P.A. and Schwartz F.W., 1990, Physical and Chemical Hydrogeology, John Wiley & Sons, NY, p. 421-540
- Fan, S. and Scow, K.M., 1993, Biodegradation of trichloroethylene and toluene by indigenous microbial populations in soil, Appl. and Environ. Microbiol., 59, 1911-1918
- Gibson S.A and Sewell G.W., 1992, Stimulation of reductive dechlorination of tetrachloroethene in anaerobic aquifer microcosms by addition of short-chain organic acids or alcohols, Appl. Environ. Microbiol., 58, 1392-1393
- Hwang, I., 2000, PhD. Dissertation, 'Fe(II)-based reductive dechlorination of tetrachloroethylene in soils treated by degradative solidification/stabilization, Texas A&M University, College Station, TX
- LaGrega, M.D., Buckingham, P.L., and Evans, J.C., 1994, Hazardous Waste Management, McGraw-Hill Inc., NJ
- Mayno-Gatell X., Tandoi V., Gossett J.M., and Zinder S. H., 1995, Characterization of the
$H_2$ -utilizing enrichment culture that reductively dechlorinates tetrachloroethene to vinyl chloride and ethene in the absence of methanogenesis and acetogenesis, Appl. Environ. Microbiol., 61, 3928-3933 - Saxton, K.E., Rawls, W.J., Romberger, J.S., and Papendick, R. I., 1986, Estimating generalized soil-water characteristics from texture, Soil Sci. Soc. Amer. J, 50, 1031-103610.2136/sssaj1986.03615995005000040039x
- Sheremata, T.W., Yong, R.N., and Guiot, S.R., 1997, Simulation and sterilization of a surrogate soil organic matter for the study of the fate of trichloroethylene in soil. Commun. Soil. Sci. Plant. Anal., 28, 1177-119010.1080/00103629709369864
- Tandoi V., DiStefano T.D., Bowser P.A., Gossett J. M., and Zinder S. H.,1994, Reductive dehalogenation of chlorinated ethenes and halogenated ethanes by a high-rate anaerobic enrichment culture, Environ. Sci. Technol., 28, 973-97910.1021/es00054a033
- US EPA, 1996a, Clean up the nations waste sites: Markets and technology trends (EPA542/R-96/005A), Washington, DC
- US EPA, 1996b, SW-846, Method 5021
- US EPA, 1996c, SW-846, Method 3520C
- US EPA, 1996d, SW-846, Method 8260
- Wu, W., Nye, J., Jain, M.K. and Hickey, RF., 1998, Anaerobic dechlorination of trichloroethylene (TCE) to ethylene using complex organic materials, Water Research, 32, 1445-145410.1016/S0043-1354(97)00356-4
- Publisher :The Korean Society of Soil and Groundwater Environment
- Publisher(Ko) :한국지하수토양환경학회
- Journal Title :Journal of Soil and Groundwater Environment
- Journal Title(Ko) :지하수토양환경
- Volume : 10
- No :3
- Pages :46 ~ 51
Journal of Soil and Groundwater Environment
