Numerical study for one-dimensional non-isothermal transport of organic contaminant in the three-layer composite liner containing a defective geomembrane
文献类型：期刊论文
| 作者 | Jiang, Wenhao2,3,4; Li, Jiangshan2,3; Ge, Shangqi1 |
| 刊名 | INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
 |
| 出版日期 | 2025-02-01 |
| 卷号 | 237页码:13 |
| 关键词 | Organic contaminant Three-layer composite liner Non-isothermal transport Defective geomembrane Temperature-dependent transport parameter Numerical study |
| ISSN号 | 0017-9310 |
| DOI | 10.1016/j.ijheatmasstransfer.2024.126417 |
| 英文摘要 | The non-isothermal case in bottom composite liners not only induces thermal diffusion behavior, but also alters transport parameters. To date, however, limited work has been done on this topic. The present research constructs a model for one-dimensional non-isothermal transport of organic contaminant in the three-layer composite liner containing a defective geomembrane (GMB), which for the first time systematically includes the impacts of temperature-dependent transport parameters, and also considers the multiple transport mechanisms. The developed model is then solved via finite difference, and its rightness is well-proven through comparisons with the two experiment results and the other calculation approaches. After that, the numerical analysis shows that the temperature-dependent transport parameters exert a combined effect on the transport process, in which changes in diffusion coefficients and hydraulic conductivities with temperature remarkably accelerate the transport rate, whereas such a change for distribution coefficients leads to an opposite trend. The barrier performance assessment suggests that the growth of temperature difference in the composite liner, as well as the GMB defects density, reduces the defined breakthrough time (tb) and increases the bottom transport flux. Moreover, 1 cm geosynthetic clay liner is noticed to extend tb by approximately 2.23 years, while 0.1 m compacted clay liner yields the increment of tb by about 12.1 years. These findings contribute to the reasonable evaluation of bottom composite liners' barrier performance at a non-isothermal environment, which could provide guidance for optimizing their engineering design. |
| 资助项目 | National Key Research and Development Program of China[2023YFC3707800] |
| WOS研究方向 | Thermodynamics ; Engineering ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:001358734400001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/43196]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Li, Jiangshan |
| 作者单位 | 1.Shandong Univ, Sch Civil Engn, Jinan 250061, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 4.Fuzhou Univ, Zijin Sch Geol & Min, Fuzhou 350108, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jiang, Wenhao,Li, Jiangshan,Ge, Shangqi. Numerical study for one-dimensional non-isothermal transport of organic contaminant in the three-layer composite liner containing a defective geomembrane[J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,2025,237:13. |
| APA | Jiang, Wenhao,Li, Jiangshan,&Ge, Shangqi.(2025).Numerical study for one-dimensional non-isothermal transport of organic contaminant in the three-layer composite liner containing a defective geomembrane.INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,237,13. |
| MLA | Jiang, Wenhao,et al."Numerical study for one-dimensional non-isothermal transport of organic contaminant in the three-layer composite liner containing a defective geomembrane".INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER 237(2025):13. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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