基于砂槽电化学-水动力学循环系统氯代烃反应迁移实验与模拟研究

谭皓月; 文章; 朱棋; 杨舒婷; 蔡其正; 刘慧

doi:10.3799/dqkx.2022.397

Volume 47 Issue 11

Nov. 2022

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Article Navigation > Earth Science > 2022 > 47(11): 4184-4195

Tan Haoyue, Wen Zhang, Zhu Qi, Yang Shuting, Cai Qizheng, Liu Hui, 2022. Experimental and Simulation Study on Reaction Migration of Chlorinated Hydrocarbons Based on Electrochemical-Hydrodynamic Circulation System in Sand Tank. Earth Science, 47(11): 4184-4195. doi: 10.3799/dqkx.2022.397

Citation:

Tan Haoyue, Wen Zhang, Zhu Qi, Yang Shuting, Cai Qizheng, Liu Hui, 2022. Experimental and Simulation Study on Reaction Migration of Chlorinated Hydrocarbons Based on Electrochemical-Hydrodynamic Circulation System in Sand Tank. Earth Science, 47(11): 4184-4195. doi: 10.3799/dqkx.2022.397

Citation:

Tan Haoyue, Wen Zhang, Zhu Qi, Yang Shuting, Cai Qizheng, Liu Hui, 2022. Experimental and Simulation Study on Reaction Migration of Chlorinated Hydrocarbons Based on Electrochemical-Hydrodynamic Circulation System in Sand Tank. Earth Science, 47(11): 4184-4195. doi: 10.3799/dqkx.2022.397

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Experimental and Simulation Study on Reaction Migration of Chlorinated Hydrocarbons Based on Electrochemical-Hydrodynamic Circulation System in Sand Tank

doi: 10.3799/dqkx.2022.397

Tan Haoyue^{1
,
,},
Wen Zhang^{1
,
,
,},
Zhu Qi¹,
Yang Shuting¹,
Cai Qizheng²,
Liu Hui¹

1.
Hubei Key Laboratory of Yangtze Catchment Environmental Aquatic Science, School of Environmental Studies, China University of Geosciences, Wuhan 430078, China
2.
State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430078, China

Received Date: 2022-06-23
Available Online: 2022-12-07
Publish Date: 2022-11-25

Abstract

Abstract

Using a subsurface electrochemical-hydrodynamic circulation system as a remediation technology, this study developes a reactive transport model of mixed chlorinated hydrocarbons in laboratory sand box experiments. The reaction kinetic parameters of each typical chlorinated hydrocarbon are estimated, revealing the influence mechanisms of aquifer properties and technological parameters on this remediation performance through the electrochemical-hydrodynamic circulation system installed in the sand tank experiment. The results indicate that: (1) An increasing pumping rate can accelerate the degradation of chlorinated hydrocarbons with large reaction rate, on the contrary, a greater pumping rate inhibits the degradation with small reaction rate. (2) An increasing electric current intensity and the in-well electrode facilitate and inhibit the aerobic degradation and anaerobic dechlorination of chlorinated hydrocarbons, respectively. (3) A stronger heterogeneity of aquifer leads to a worse performance of chlorinated hydrocarbon degradation, especially in the low-permeability region; and the influence of aquifer heterogeneity on the remediation performance of easily degradable pollutants is very slight.
- groundwater contamination,
- mixed chlorinated hydrocarbon,
- electrochemical hydrodynamic circulation,
- reactive transport stimulation,
- hydrogeology

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References(43)

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Experimental and Simulation Study on Reaction Migration of Chlorinated Hydrocarbons Based on Electrochemical-Hydrodynamic Circulation System in Sand Tank

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