Continuous Electrical Resistivity Tomography Monitoring in Waste Landfill Sites with Different Properties and Visualization of Water Channels
This study aims to obtain findings on the internal water behavior, the presence of water channels, and the degree of washout due to rainfall infiltration in Japanese municipal solid waste (MSW) final disposal sites. Electrical resistivity tomography (ERT) monitoring and undistributed waste sampling...
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MDPI AG
2025-06-01
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| author | Yugo Isobe Hiroyuki Ishimori |
| author_facet | Yugo Isobe Hiroyuki Ishimori |
| author_sort | Yugo Isobe |
| collection | DOAJ |
| description | This study aims to obtain findings on the internal water behavior, the presence of water channels, and the degree of washout due to rainfall infiltration in Japanese municipal solid waste (MSW) final disposal sites. Electrical resistivity tomography (ERT) monitoring and undistributed waste sampling for X-ray computed tomography (X-ray CT) analysis were conducted in the field. The study sites were targeted at Site A, which is mainly composed of non-combustible residues, and Site B, which is mainly composed of incineration ash. The time-dependent resistivity distributions obtained from real-time ERT monitoring were effective for us to understand the water content distribution after water infiltration during water injection tests. As a result, the global flow behavior and the local water channel flow were determined. In addition, X-ray CT analysis of the undisturbed waste samples obtained from the sites clarified the different pore structures, indicating the possibility of more advanced washing out at Site A than at Site B. Furthermore, the soil cover layer and gas extraction wells had a significant effect on the resistivity structure with respect to water flow behavior. Since soil cover layer and gas extraction wells are significant factors affecting waste stabilization by washout, it is suggested that these factors should be considered in the design and maintenance of landfills. |
| format | Article |
| id | doaj-art-b9427052e55e4401bbc75d05564cea5e |
| institution | Kabale University |
| issn | 2076-3417 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | MDPI AG |
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| series | Applied Sciences |
| spelling | doaj-art-b9427052e55e4401bbc75d05564cea5e2025-08-20T03:26:21ZengMDPI AGApplied Sciences2076-34172025-06-011512692010.3390/app15126920Continuous Electrical Resistivity Tomography Monitoring in Waste Landfill Sites with Different Properties and Visualization of Water ChannelsYugo Isobe0Hiroyuki Ishimori1Material Cycles and Waste Management Group, Center for Environmental Science in Saitama (CESS), 914 Kamitanadare, Kazo 347-0115, JapanMaterial Cycles Division, National Institute for Environmental Studies (NIES), 16-2 Onogawa, Tsukuba 305-8506, JapanThis study aims to obtain findings on the internal water behavior, the presence of water channels, and the degree of washout due to rainfall infiltration in Japanese municipal solid waste (MSW) final disposal sites. Electrical resistivity tomography (ERT) monitoring and undistributed waste sampling for X-ray computed tomography (X-ray CT) analysis were conducted in the field. The study sites were targeted at Site A, which is mainly composed of non-combustible residues, and Site B, which is mainly composed of incineration ash. The time-dependent resistivity distributions obtained from real-time ERT monitoring were effective for us to understand the water content distribution after water infiltration during water injection tests. As a result, the global flow behavior and the local water channel flow were determined. In addition, X-ray CT analysis of the undisturbed waste samples obtained from the sites clarified the different pore structures, indicating the possibility of more advanced washing out at Site A than at Site B. Furthermore, the soil cover layer and gas extraction wells had a significant effect on the resistivity structure with respect to water flow behavior. Since soil cover layer and gas extraction wells are significant factors affecting waste stabilization by washout, it is suggested that these factors should be considered in the design and maintenance of landfills.https://www.mdpi.com/2076-3417/15/12/6920electrical resistivity tomographywaste landfillin situ real-time monitoringwater channel flowX-ray computed tomography |
| spellingShingle | Yugo Isobe Hiroyuki Ishimori Continuous Electrical Resistivity Tomography Monitoring in Waste Landfill Sites with Different Properties and Visualization of Water Channels Applied Sciences electrical resistivity tomography waste landfill in situ real-time monitoring water channel flow X-ray computed tomography |
| title | Continuous Electrical Resistivity Tomography Monitoring in Waste Landfill Sites with Different Properties and Visualization of Water Channels |
| title_full | Continuous Electrical Resistivity Tomography Monitoring in Waste Landfill Sites with Different Properties and Visualization of Water Channels |
| title_fullStr | Continuous Electrical Resistivity Tomography Monitoring in Waste Landfill Sites with Different Properties and Visualization of Water Channels |
| title_full_unstemmed | Continuous Electrical Resistivity Tomography Monitoring in Waste Landfill Sites with Different Properties and Visualization of Water Channels |
| title_short | Continuous Electrical Resistivity Tomography Monitoring in Waste Landfill Sites with Different Properties and Visualization of Water Channels |
| title_sort | continuous electrical resistivity tomography monitoring in waste landfill sites with different properties and visualization of water channels |
| topic | electrical resistivity tomography waste landfill in situ real-time monitoring water channel flow X-ray computed tomography |
| url | https://www.mdpi.com/2076-3417/15/12/6920 |
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