Effects of 3D microstructure of porous media on DNAPL migration and remediation by surface active agents in groundwater
Aquifers composed of porous granular media are important to human beings because they are capable of storing a large amount of groundwater. Contaminant migration and remediation in subsurface environments are strongly influenced by three-dimensional (3D) microstructures of porous media. In this stud...
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Elsevier
2024-12-01
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| Series: | Eco-Environment & Health |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2772985024000553 |
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| author | Zhou Cheng Ming Wu Yanru Hao Cehui Mo Qusheng Li Jianfeng Wu Jichun Wu Bill X. Hu Guoping Lu |
| author_facet | Zhou Cheng Ming Wu Yanru Hao Cehui Mo Qusheng Li Jianfeng Wu Jichun Wu Bill X. Hu Guoping Lu |
| author_sort | Zhou Cheng |
| collection | DOAJ |
| description | Aquifers composed of porous granular media are important to human beings because they are capable of storing a large amount of groundwater. Contaminant migration and remediation in subsurface environments are strongly influenced by three-dimensional (3D) microstructures of porous media. In this study, fractal models are developed to investigate contaminant transport and surfactant-enhanced aquifer remediation (SEAR) for the regular tetrahedron microstructure (RTM) and right square pyramid microstructure (RSPM). The relationships of permeability and entry pressure are derived for these two kinds of 3D microstructures of granular porous media. Afterward, the difference in perchloroethylene (PCE) migration and SEAR efficiency between RTM and RSPM is investigated by the numerical simulation based on a synthetic heterogeneous granular aquifer. Results indicate that PCE penetrates faster and spreads farther in RSPM-based aquifers compared with RTM-based aquifers. Further, SEAR in RTM-based aquifers can achieve remediation efficiencies of 66.129%–92.214% with a mean of 84.324%, which is clearly lower than the SEAR efficiency of 70.149%–94.773% (with a mean of 89.122%) in RSPM-based aquifers. Findings are significant for understanding the 3D microstructure of porous media and how the microstructure of porous media affects macroscopic contaminant behaviors and remediation. |
| format | Article |
| id | doaj-art-39c3dcfb30ec4c1ab4993c35c5f7c6ce |
| institution | Kabale University |
| issn | 2772-9850 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Eco-Environment & Health |
| spelling | doaj-art-39c3dcfb30ec4c1ab4993c35c5f7c6ce2024-12-07T08:35:07ZengElsevierEco-Environment & Health2772-98502024-12-0134466475Effects of 3D microstructure of porous media on DNAPL migration and remediation by surface active agents in groundwaterZhou Cheng0Ming Wu1Yanru Hao2Cehui Mo3Qusheng Li4Jianfeng Wu5Jichun Wu6Bill X. Hu7Guoping Lu8Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, China; Guangdong Provincial Academy of Environmental Science, Guangzhou 510045, ChinaGuangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, China; Corresponding author.Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, ChinaGuangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, ChinaGuangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 510632, ChinaKey Laboratory of Surficial Geochemistry, Ministry of Education, Department of Hydrosciences, School of Earth Sciences and Engineering, Nanjing University, Nanjing 210023, ChinaKey Laboratory of Surficial Geochemistry, Ministry of Education, Department of Hydrosciences, School of Earth Sciences and Engineering, Nanjing University, Nanjing 210023, ChinaSchool of Water Conservancy and Environment, University of Jinan, Jinan 250022, ChinaGuangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, ChinaAquifers composed of porous granular media are important to human beings because they are capable of storing a large amount of groundwater. Contaminant migration and remediation in subsurface environments are strongly influenced by three-dimensional (3D) microstructures of porous media. In this study, fractal models are developed to investigate contaminant transport and surfactant-enhanced aquifer remediation (SEAR) for the regular tetrahedron microstructure (RTM) and right square pyramid microstructure (RSPM). The relationships of permeability and entry pressure are derived for these two kinds of 3D microstructures of granular porous media. Afterward, the difference in perchloroethylene (PCE) migration and SEAR efficiency between RTM and RSPM is investigated by the numerical simulation based on a synthetic heterogeneous granular aquifer. Results indicate that PCE penetrates faster and spreads farther in RSPM-based aquifers compared with RTM-based aquifers. Further, SEAR in RTM-based aquifers can achieve remediation efficiencies of 66.129%–92.214% with a mean of 84.324%, which is clearly lower than the SEAR efficiency of 70.149%–94.773% (with a mean of 89.122%) in RSPM-based aquifers. Findings are significant for understanding the 3D microstructure of porous media and how the microstructure of porous media affects macroscopic contaminant behaviors and remediation.http://www.sciencedirect.com/science/article/pii/S2772985024000553Porous mediaSequential gaussian simulationRegular tetrahedron microstructureRight square pyramid microstructureSurfactant-enhanced aquifer remediation |
| spellingShingle | Zhou Cheng Ming Wu Yanru Hao Cehui Mo Qusheng Li Jianfeng Wu Jichun Wu Bill X. Hu Guoping Lu Effects of 3D microstructure of porous media on DNAPL migration and remediation by surface active agents in groundwater Eco-Environment & Health Porous media Sequential gaussian simulation Regular tetrahedron microstructure Right square pyramid microstructure Surfactant-enhanced aquifer remediation |
| title | Effects of 3D microstructure of porous media on DNAPL migration and remediation by surface active agents in groundwater |
| title_full | Effects of 3D microstructure of porous media on DNAPL migration and remediation by surface active agents in groundwater |
| title_fullStr | Effects of 3D microstructure of porous media on DNAPL migration and remediation by surface active agents in groundwater |
| title_full_unstemmed | Effects of 3D microstructure of porous media on DNAPL migration and remediation by surface active agents in groundwater |
| title_short | Effects of 3D microstructure of porous media on DNAPL migration and remediation by surface active agents in groundwater |
| title_sort | effects of 3d microstructure of porous media on dnapl migration and remediation by surface active agents in groundwater |
| topic | Porous media Sequential gaussian simulation Regular tetrahedron microstructure Right square pyramid microstructure Surfactant-enhanced aquifer remediation |
| url | http://www.sciencedirect.com/science/article/pii/S2772985024000553 |
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