한국물환경학회지 (Journal of Korean Society on Water Environment)

  • 제29권4호
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  • Pages.489-496
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  • 2013
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  • 2289-0971(pISSN)
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  • 2289-098X(eISSN)
한국물환경학회 (Korean Society on Water Environment)
권호 표지

토양에서 유기화합물질의 침투 거동 연구

Analysis on the Seepage Behavior of Organic Contaminants in Soil

  • 이준호 (한국외국어대학교 환경학과) ;
  • 한선향 (한국외국어대학교 환경학과) ;
  • 박갑성 (한국외국어대학교 환경학과)
  • Lee, Jun Ho (Department of Environmental Science and Engineering, Hankuk University of Foreign Studies) ;
  • Han, Sun Hyang (Department of Environmental Science and Engineering, Hankuk University of Foreign Studies) ;
  • Park, Kap Song (Department of Environmental Science and Engineering, Hankuk University of Foreign Studies)
  • 발행 : 2013.07.30
⟨ 이전 논문 다음 논문 ⟩

초록

지하수계의 근간을 이루는 토양시스템은 유기화학물질에 오염되기 쉬운 환경에 놓인다. 이러한 토양의 유기화학물질 침투 거동을 평가하기 위해 점토, 실트 및 모래로 구성된 실험장치에 유기화학 물질 이동실험을 하였다. Chloroform, 1,1,1-trichloroethane 및 trichloroethylene은 토양을 통해 이동이 쉽게 이루어지며, 투과된 오염물질의 질량은 전체 질량의 최소 4.6에서 최대 19.2% 범위를 보였다. Tetrachloroethylene Tetrachloroethylene, 1,2-dichlorobenzene 및 1,3-dichlorobenzene은 토양 흡착에 의해 이동이 지연되어졌으며, 각 매개체의 0.6 ~ 4.8%가 표층에서 여과되는데 이용되었다. Carbon tetrachloride는 거의 투과되지 못하였고, 단지 0.1 ~ 0.4% 질량만이 침투거동에 도달하였다. Bromoform은 거의 투과되지 못하였으며, 브롬화(Br) 화합물의 중간 전환물질로도 확인되었다. 유기화학오염물들의 이동은 토양입자크기 및 수리전도도 등에 따라 달라진다고 여겨지나 본 연구에서는 유기화학오염물들의 이동은 점토, 실트 토양보다 모래 토양에서 더욱 빠르게 나타났다.

Ground water underlying soil is vulnerable to pollution by organic chemicals through their percolation through the soil system. This study was conducted to provide information on the seepage behavior of organic chemical contaminants in clay, silty and sandy soils. Chloroform, 1,1,1-trichloroethane and trichloroethylene are readily transported through the soil; their percolated mass were 4.6-19.2 percent of the total mass applied. Tetrachloroethylene, 1,2-dichlorobenzene and 1,3-dichlorobenzene were retarded by soils due to sorption. Between 0.6 and 4.8 percent of the material applied to the surface percolated within the experimental period. Carbon tetrachloride was attenuated considerably by passage through soils. Only 0.1-0.4 percent of the mass reached the groundwater. Significant degradation of bromoform was observed. Apparent breakdown of intermediates of the brominated compounds were detected. Transformations of the brominated compounds appear to be the result of both biological and chemical processes. The effect of soil type on the mobility of organic chemical contaminants was considerable. The organic contaminants moved faster in sandy soil than in either clay or silty soils.

키워드

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