Multi-field coupled migration characteristics of heat and mass in the process of in-situ thermal remediation of organic contaminated soil
This paper built a simulation test platform for soil in-situ thermal remediation, and studied the temporal and spatial distribution of temperature, moisture and electrical conductivity in the process of thermal remediation under the condition of multi heat source heating and extraction. The effects...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-06-01
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| Series: | Case Studies in Thermal Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X25003600 |
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| author | Guangchang Yang Mengying Zhou Lu Yu Yang Liu Huiyang Liu Jinglin Hu Rui Zhou |
| author_facet | Guangchang Yang Mengying Zhou Lu Yu Yang Liu Huiyang Liu Jinglin Hu Rui Zhou |
| author_sort | Guangchang Yang |
| collection | DOAJ |
| description | This paper built a simulation test platform for soil in-situ thermal remediation, and studied the temporal and spatial distribution of temperature, moisture and electrical conductivity in the process of thermal remediation under the condition of multi heat source heating and extraction. The effects of different initial moisture content, dry density, heating temperature and heating time on heat and mass coupling migration characteristics and removal of organic pollutants and heavy metal ions are analyzed. The results show that the temperature shows a decreasing trend with the increase of soil initial moisture content, and shows different rules with the change of dry density under different moisture content. The moisture shows a change rule of first increasing and then decreasing, which is significant with low moisture content and high dry density, with a similar change in electrical conductivity. The gradual heating process can promote the further migration of moisture, but it is unfavorable for the temperature rise at the point far away from the heat source. Low moisture content, low dry density and long heating time are more conducive to the removal of organic pollutants, but the effect of in-situ thermal remediation on the remediation of heavy metal ions Cd2+ is not obvious. |
| format | Article |
| id | doaj-art-e6d5c3bec3bf4af5b60415637605ced6 |
| institution | OA Journals |
| issn | 2214-157X |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj-art-e6d5c3bec3bf4af5b60415637605ced62025-08-20T01:48:30ZengElsevierCase Studies in Thermal Engineering2214-157X2025-06-017010610010.1016/j.csite.2025.106100Multi-field coupled migration characteristics of heat and mass in the process of in-situ thermal remediation of organic contaminated soilGuangchang Yang0Mengying Zhou1Lu Yu2Yang Liu3Huiyang Liu4Jinglin Hu5Rui Zhou6Department of Civil Engineering, University of Science and Technology Beijing, Beijing, 100083, ChinaDepartment of Civil Engineering, University of Science and Technology Beijing, Beijing, 100083, ChinaDepartment of Civil Engineering, University of Science and Technology Beijing, Beijing, 100083, ChinaCorresponding author.; Department of Civil Engineering, University of Science and Technology Beijing, Beijing, 100083, ChinaDepartment of Civil Engineering, University of Science and Technology Beijing, Beijing, 100083, ChinaDepartment of Civil Engineering, University of Science and Technology Beijing, Beijing, 100083, ChinaDepartment of Civil Engineering, University of Science and Technology Beijing, Beijing, 100083, ChinaThis paper built a simulation test platform for soil in-situ thermal remediation, and studied the temporal and spatial distribution of temperature, moisture and electrical conductivity in the process of thermal remediation under the condition of multi heat source heating and extraction. The effects of different initial moisture content, dry density, heating temperature and heating time on heat and mass coupling migration characteristics and removal of organic pollutants and heavy metal ions are analyzed. The results show that the temperature shows a decreasing trend with the increase of soil initial moisture content, and shows different rules with the change of dry density under different moisture content. The moisture shows a change rule of first increasing and then decreasing, which is significant with low moisture content and high dry density, with a similar change in electrical conductivity. The gradual heating process can promote the further migration of moisture, but it is unfavorable for the temperature rise at the point far away from the heat source. Low moisture content, low dry density and long heating time are more conducive to the removal of organic pollutants, but the effect of in-situ thermal remediation on the remediation of heavy metal ions Cd2+ is not obvious.http://www.sciencedirect.com/science/article/pii/S2214157X25003600Heat and mass migrationIn-situ thermal remediationOrganic contaminated soilMulti-field coupling |
| spellingShingle | Guangchang Yang Mengying Zhou Lu Yu Yang Liu Huiyang Liu Jinglin Hu Rui Zhou Multi-field coupled migration characteristics of heat and mass in the process of in-situ thermal remediation of organic contaminated soil Case Studies in Thermal Engineering Heat and mass migration In-situ thermal remediation Organic contaminated soil Multi-field coupling |
| title | Multi-field coupled migration characteristics of heat and mass in the process of in-situ thermal remediation of organic contaminated soil |
| title_full | Multi-field coupled migration characteristics of heat and mass in the process of in-situ thermal remediation of organic contaminated soil |
| title_fullStr | Multi-field coupled migration characteristics of heat and mass in the process of in-situ thermal remediation of organic contaminated soil |
| title_full_unstemmed | Multi-field coupled migration characteristics of heat and mass in the process of in-situ thermal remediation of organic contaminated soil |
| title_short | Multi-field coupled migration characteristics of heat and mass in the process of in-situ thermal remediation of organic contaminated soil |
| title_sort | multi field coupled migration characteristics of heat and mass in the process of in situ thermal remediation of organic contaminated soil |
| topic | Heat and mass migration In-situ thermal remediation Organic contaminated soil Multi-field coupling |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X25003600 |
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