Journal of Korean Society on Water Environment (한국물환경학회지)

Korean Society on Water Environment (한국물환경학회)
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Evaporation of Volatile Chlorinated Hydrocarbons in Soils

토양의 휘발성 염화 탄화수소 화합물 증발

  • Lee, Junho (Department of Environmental Science, Hankuk University of Foreign Studies) ;
  • Park, Kapsong (Department of Environmental Science, Hankuk University of Foreign Studies)
  • 이준호 (한국외국어대학교 자연과학대학 환경학과) ;
  • 박갑성 (한국외국어대학교 자연과학대학 환경학과)
  • Received : 2007.08.21
  • Accepted : 2007.11.26
  • Published : 2008.01.30
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Abstract

Evaporation of selected toxic volatile chlorinated hydrocarbons was studied in laboratory soil columns. The evaporation values were obtained for the ten volatile chlorinated hydrocarbons at two different temperatures ($12^{\circ}C$ and $21^{\circ}C$) from columns filled with silty clay loam and sandy loam soils. 1,1,1-Trichloroethane, trichloroethylene and chloroform evaporated considerably (36.7~54.6% removal), carbon tetrachloride, 1,2-dichlorobenzene, tetrachloroethylene, 1,3-dichlorobenzene, dichlorobromethane and dibromochloromethane to a lesser extent (15.3~39.3% removal), and bromoform evaporated poorly (<10 percent removal) at both temperature. Volatile chlorinated hydrocarbons concentration did not affect evaporation, no statistically significant difference in evaporation between the soil types was found. However, temperature affected evaporation, the effect of concentration on the evaporation was not conclusive.

독성 성질을 가진 휘발성 염소계 탄소수소류의 휘발특성에 대하여 실험실 규모의 토양컬럼실험을 진행하였다. 실트점토성 토양과 사질성의 양질 토양 2개 컬럼으로부터 $12^{\circ}C$, $21^{\circ}C$의 각각 다른 조건으로 실험한 결과 총 10가지의 휘발성염소계 화학물질이 검출되었다. 1,1,1-trichloroethane, trichloroethylene 그리고 chloroform은 초기 농도대비 36.7~54.6% 제거되었고 carbon tetrachloride, 1,2-dichlorobenzene, tetrachloroethylene, 1,3-dichlorobenzene, dichlorobromethane 그리고 dibromochloromethane는 초기 농도대비 15.3~39.3% 제거되었으며 특히 bromoform 물질의 경우 초기 농도대비 10%이하의 가장 낮은 저감 비율이 보였다. 염소계 탄화수소류 초기 농도값, 토양 성상은 휘발량에 큰 영향을 끼치지 않았다. 그러나, 온도비교에서 $12^{\circ}C$보다 $21^{\circ}C$에서 저감비율이 더 높았다.

Keywords

Acknowledgement

Supported by : Hankuk University of Foreign Studies

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