ENGINEERING APPLICATION OF ENHANCED ROOM TEMPERATURE DESORPTION IN REMEDIATION OF SOIL CONTAMINATED BY CHLORINATED HYDROCARBONS

NIU Jianmin; ZANG Chong; WANG Zhenghua; ZHOU Min; PAN Wenjie; LI Hongyan

doi:10.13205/j.hjgc.202405014

Volume 42 Issue 5

May 2024

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2024 > 42(5): 107-113

NIU Jianmin, ZANG Chong, WANG Zhenghua, ZHOU Min, PAN Wenjie, LI Hongyan. ENGINEERING APPLICATION OF ENHANCED ROOM TEMPERATURE DESORPTION IN REMEDIATION OF SOIL CONTAMINATED BY CHLORINATED HYDROCARBONS[J]. ENVIRONMENTAL ENGINEERING , 2024, 42(5): 107-113. doi: 10.13205/j.hjgc.202405014

Citation:

NIU Jianmin, ZANG Chong, WANG Zhenghua, ZHOU Min, PAN Wenjie, LI Hongyan. ENGINEERING APPLICATION OF ENHANCED ROOM TEMPERATURE DESORPTION IN REMEDIATION OF SOIL CONTAMINATED BY CHLORINATED HYDROCARBONS[J]. ENVIRONMENTAL ENGINEERING , 2024, 42(5): 107-113. doi: 10.13205/j.hjgc.202405014

Citation:

NIU Jianmin, ZANG Chong, WANG Zhenghua, ZHOU Min, PAN Wenjie, LI Hongyan. ENGINEERING APPLICATION OF ENHANCED ROOM TEMPERATURE DESORPTION IN REMEDIATION OF SOIL CONTAMINATED BY CHLORINATED HYDROCARBONS[J]. ENVIRONMENTAL ENGINEERING , 2024, 42(5): 107-113. doi: 10.13205/j.hjgc.202405014

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ENGINEERING APPLICATION OF ENHANCED ROOM TEMPERATURE DESORPTION IN REMEDIATION OF SOIL CONTAMINATED BY CHLORINATED HYDROCARBONS

doi: 10.13205/j.hjgc.202405014

1. Shenzhen Integrated Transportation and Municipal Engineering Design Research Institute Co., Ltd., Shenzhen 518003, China;
2. Hunan University of Science and Technology, Xiangtan 411201, China

Received Date: 2023-06-19
Available Online: 2024-07-11

Abstract

Abstract

To study the effect of this technology on the removal of different chlorinated hydrocarbons, a chlorinated hydrocarbon polluted site in the Pearl River Delta was selected, and laboratory experiments and pilot-scale field experiments were carried out using the room temperature desorption technology enhanced by chemical oxidation. The results showed that after room temperature desorption, the average removal rates of contaminants such as vinyl chloride, trichloroethylene, and tetrachloroethylene in the soil were all above 80%. After alkaline activation and sodium persulfate chemical oxidation, except for tetrachloroethylene in heavily polluted soil, the removal rates of contaminants in the soil were all above 90%. Different levels of pollution in the soil had achieved the remediation target values for vinyl chloride, trichloroethylene, and tetrachloroethylene. After on-site remediation, the soil chloroethylene, trichloroethylene, and tetrachloroethylene all reached the remediation target values. The initial concentration of contaminants has a great influence on the removal of chlorinated hydrocarbons. The higher the initial concentration, the higher the desorption rate of chlorinated hydrocarbons. Engineering practice has shown that the enhanced normal temperature desorption proposed in this study is feasible for the remediation of chlorinated hydrocarbon polluted soil.
- soil remediation,
- enhanced room temperature desorption,
- chemical oxidation,
- chlorinated hydrocarbons,
- organic contaminated site

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References(47)

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