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Volume 26 Issue 3
Jul.  2015
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Yong Qian, Jingli Shao, Zhaoji Zhang, Yuhong Fei, Chunxiao Wang, Xiangxiang Cui, Suhua Meng. Influence of Rain on Tetrachloroethylene’s Multiphase Migration in Soil. Journal of Earth Science, 2015, 17(3): 453-460. doi: 10.1007/s12583-015-0547-6
Citation: Yong Qian, Jingli Shao, Zhaoji Zhang, Yuhong Fei, Chunxiao Wang, Xiangxiang Cui, Suhua Meng. Influence of Rain on Tetrachloroethylene’s Multiphase Migration in Soil. Journal of Earth Science, 2015, 17(3): 453-460. doi: 10.1007/s12583-015-0547-6

Influence of Rain on Tetrachloroethylene’s Multiphase Migration in Soil

doi: 10.1007/s12583-015-0547-6
  • Received Date: 2015-07-10
  • Rev Recd Date: 2015-07-10
  • Publish Date: 2015-07-10
  • For the increasingly serious soil and groundwater pollution by volatile organic compounds, tetrachloroethylene (PCE) was selected as the research object in this study. With the in-situ soil column physical simulation experiments, migration law of PCE in soil under rain conditions was studied by monitoring precipitation and soil parameter as well as sampling and analyzing soil and soil gas, and influence of rain on the multiphase migration process of PCE was preliminarily discussed. Research shows that migrations of PCE and soil moisture were not synchronous, and the rate of the former was speeded up by the latter caused by rain. Preliminary analysis indicates that migration of volatile chlorohydrocarbon in soil was not only driven by soil moisture, but also controlled by the nature of volatility of their own, that is to say, volatilization into gas phase was an important way of migrating and diffusing in pore medium, and the rate of migration and diffusion of gaseous PCE was faster than that of solid, resulting in more abroad distribution of gas phase than that in solid phase.
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Influence of Rain on Tetrachloroethylene’s Multiphase Migration in Soil

doi: 10.1007/s12583-015-0547-6

Abstract: For the increasingly serious soil and groundwater pollution by volatile organic compounds, tetrachloroethylene (PCE) was selected as the research object in this study. With the in-situ soil column physical simulation experiments, migration law of PCE in soil under rain conditions was studied by monitoring precipitation and soil parameter as well as sampling and analyzing soil and soil gas, and influence of rain on the multiphase migration process of PCE was preliminarily discussed. Research shows that migrations of PCE and soil moisture were not synchronous, and the rate of the former was speeded up by the latter caused by rain. Preliminary analysis indicates that migration of volatile chlorohydrocarbon in soil was not only driven by soil moisture, but also controlled by the nature of volatility of their own, that is to say, volatilization into gas phase was an important way of migrating and diffusing in pore medium, and the rate of migration and diffusion of gaseous PCE was faster than that of solid, resulting in more abroad distribution of gas phase than that in solid phase.

Yong Qian, Jingli Shao, Zhaoji Zhang, Yuhong Fei, Chunxiao Wang, Xiangxiang Cui, Suhua Meng. Influence of Rain on Tetrachloroethylene’s Multiphase Migration in Soil. Journal of Earth Science, 2015, 17(3): 453-460. doi: 10.1007/s12583-015-0547-6
Citation: Yong Qian, Jingli Shao, Zhaoji Zhang, Yuhong Fei, Chunxiao Wang, Xiangxiang Cui, Suhua Meng. Influence of Rain on Tetrachloroethylene’s Multiphase Migration in Soil. Journal of Earth Science, 2015, 17(3): 453-460. doi: 10.1007/s12583-015-0547-6

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