The transformation and migration of contaminants during the remediation process of heterogeneous strata by the in-situ thermal conductive heating (TCH) technology: A literature review

There are currently large quantities of heterogeneous contaminated sites and the in-situ thermal conductive heating (TCH) technology have been widely used in soil remediation. Some engineering cases have shown that when soil remediation of heterogeneous sites use TCH technology, the gases carrying c...

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Main Authors: Wei Ji, Rong-Bing Fu, Cai-Hong Gao, Jia-Bin Yao
Format: Article
Language:English
Published: Polish Academy of Sciences 2023-03-01
Series:Archives of Environmental Protection
Subjects:
Online Access:https://journals.pan.pl/Content/126526/PDF/AEP_vol49no1pp94_102.pdf
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author Wei Ji
Rong-Bing Fu
Cai-Hong Gao
Jia-Bin Yao
author_facet Wei Ji
Rong-Bing Fu
Cai-Hong Gao
Jia-Bin Yao
author_sort Wei Ji
collection DOAJ
description There are currently large quantities of heterogeneous contaminated sites and the in-situ thermal conductive heating (TCH) technology have been widely used in soil remediation. Some engineering cases have shown that when soil remediation of heterogeneous sites use TCH technology, the gases carrying contaminants migrate laterally and contaminate clean areas. However, there are relatively few domestic studies on this phenomenon. Some international scholars have confirmed the occurrence of this phenomenon on the laboratory scale, but have not proposed an effective solution to the above scientific question. This study first introduced the heating mechanism and heating process of TCH. Meanwhile, the forms and transformation mechanism of organic contaminants were fully expounded during soil remediation by TCH. In addition, the formation, migration, accumulation, and lateral diffusion of gaseous contaminants were comprehensively reviewed during the in-situ thermal desorption of heterogeneous strata. Finally, arrangement methods of extraction pipes to effectively capture gas are provided for the heterogeneous contaminated soils remediated by TCH. The results of this study will provide theoretical and technical support for in-depth understanding of steam movement in heterogeneous formations and the remediation of heterogeneous contaminated sites by TCH technology.
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spelling doaj.art-706516b36b914b99aed7708e1a934eb62023-11-29T10:43:05ZengPolish Academy of SciencesArchives of Environmental Protection2083-47722083-48102023-03-01vol. 49No 194102https://doi.org/10.24425/aep.2023.144742The transformation and migration of contaminants during the remediation process of heterogeneous strata by the in-situ thermal conductive heating (TCH) technology: A literature reviewWei Ji0Rong-Bing Fu1Cai-Hong Gao2Jia-Bin Yao3State Key Laboratory of Pollution Control and Resources Reuse,College of Environmental Science and Engineering, Tongji University, Shanghai 200092, ChinaCentre for Environmental Risk Management and Remediation of Soil and Groundwater,Tongji University, Shanghai 200092, ChinaState Key Laboratory of Pollution Control and Resources Reuse,College of Environmental Science and Engineering, Tongji University, Shanghai 200092, ChinaCentre for Environmental Risk Management and Remediation of Soil and Groundwater,Tongji University, Shanghai 200092, ChinaState Key Laboratory of Pollution Control and Resources Reuse,College of Environmental Science and Engineering, Tongji University, Shanghai 200092, ChinaCentre for Environmental Risk Management and Remediation of Soil and Groundwater,Tongji University, Shanghai 200092, ChinaState Key Laboratory of Pollution Control and Resources Reuse,College of Environmental Science and Engineering, Tongji University, Shanghai 200092, ChinaCentre for Environmental Risk Management and Remediation of Soil and Groundwater,Tongji University, Shanghai 200092, ChinaThere are currently large quantities of heterogeneous contaminated sites and the in-situ thermal conductive heating (TCH) technology have been widely used in soil remediation. Some engineering cases have shown that when soil remediation of heterogeneous sites use TCH technology, the gases carrying contaminants migrate laterally and contaminate clean areas. However, there are relatively few domestic studies on this phenomenon. Some international scholars have confirmed the occurrence of this phenomenon on the laboratory scale, but have not proposed an effective solution to the above scientific question. This study first introduced the heating mechanism and heating process of TCH. Meanwhile, the forms and transformation mechanism of organic contaminants were fully expounded during soil remediation by TCH. In addition, the formation, migration, accumulation, and lateral diffusion of gaseous contaminants were comprehensively reviewed during the in-situ thermal desorption of heterogeneous strata. Finally, arrangement methods of extraction pipes to effectively capture gas are provided for the heterogeneous contaminated soils remediated by TCH. The results of this study will provide theoretical and technical support for in-depth understanding of steam movement in heterogeneous formations and the remediation of heterogeneous contaminated sites by TCH technology.https://journals.pan.pl/Content/126526/PDF/AEP_vol49no1pp94_102.pdfmigrationtransformationsoil remediationheterogeneous stratain-situ thermal desorption
spellingShingle Wei Ji
Rong-Bing Fu
Cai-Hong Gao
Jia-Bin Yao
The transformation and migration of contaminants during the remediation process of heterogeneous strata by the in-situ thermal conductive heating (TCH) technology: A literature review
Archives of Environmental Protection
migration
transformation
soil remediation
heterogeneous strata
in-situ thermal desorption
title The transformation and migration of contaminants during the remediation process of heterogeneous strata by the in-situ thermal conductive heating (TCH) technology: A literature review
title_full The transformation and migration of contaminants during the remediation process of heterogeneous strata by the in-situ thermal conductive heating (TCH) technology: A literature review
title_fullStr The transformation and migration of contaminants during the remediation process of heterogeneous strata by the in-situ thermal conductive heating (TCH) technology: A literature review
title_full_unstemmed The transformation and migration of contaminants during the remediation process of heterogeneous strata by the in-situ thermal conductive heating (TCH) technology: A literature review
title_short The transformation and migration of contaminants during the remediation process of heterogeneous strata by the in-situ thermal conductive heating (TCH) technology: A literature review
title_sort transformation and migration of contaminants during the remediation process of heterogeneous strata by the in situ thermal conductive heating tch technology a literature review
topic migration
transformation
soil remediation
heterogeneous strata
in-situ thermal desorption
url https://journals.pan.pl/Content/126526/PDF/AEP_vol49no1pp94_102.pdf
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