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Song SY, Kim B, Jeong J, Park S, Nam MJ. 4D interpretation of time-lapse electrical resistivity monitoring data to identify preferential flow path in a landfill, South Korea. ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 195:625. [PMID: 37119389 DOI: 10.1007/s10661-023-11149-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 03/20/2023] [Indexed: 06/19/2023]
Abstract
Monitoring the leakage of leachate from a landfill is critical in preventing possible contamination in the surrounding area. Time-lapse (TL) electrical resistivity tomography (ERT) has been performed along eleven survey lines at four different time points in a landfill in Korea. The TL data sets were interpreted using an in-house 4D inversion algorithm. Changes in 4D inversion results were analyzed in order to interpret a leachate-contaminant region. Since the rainy season started during obtaining TL ERT data sets, the effects of precipitation on TL ERT data are also analyzed. Changes in electrical resistivity (ER) showed that precipitation increases ER of contaminant zones. As hydrogeochemical data offer contamination information in some areas where boreholes are located, these are helpful to interpret and compare with ERT inversion results to evaluate the extent of the contaminated plume. We also classified soil textures from particle size analysis on soil samples and analyzed electrical conductivity (EC) and dissolved oxygen (DO) using groundwater samples obtained from observation wells in the survey site. The information on soil structure as well as the results of 4D inversion provided insight into the location of a preferential flow path.
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Affiliation(s)
- Seo Young Song
- Department of Energy and Mineral Resources Engineering, Sejong University, Seoul, 05006, Republic of Korea
| | - Bitnarae Kim
- Department of Energy and Mineral Resources Engineering, Sejong University, Seoul, 05006, Republic of Korea
- Currently, BRGM (French Geological Survey), Orléans, F-45100, France
| | - Juyeon Jeong
- Department of Energy and Mineral Resources Engineering, Sejong University, Seoul, 05006, Republic of Korea
| | - Samgyu Park
- Korea Institute of Geosciences and Mineral Resources, Daejeon, 34132, Republic of Korea
| | - Myung Jin Nam
- Department of Energy and Mineral Resources Engineering, Sejong University, Seoul, 05006, Republic of Korea.
- Department of Energy Resources and Geosystems Engineering, Sejong University, Seoul, 05006, Republic of Korea.
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Numerical modeling of biogeobattery system from microbial degradation of underground organic contaminant. SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-020-2008-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Yang YS, Li P, Zhang X, Li M, Lu Y, Xu B, Yu T. Lab-based investigation of enhanced BTEX attenuation driven by groundwater table fluctuation. CHEMOSPHERE 2017; 169:678-684. [PMID: 27912192 DOI: 10.1016/j.chemosphere.2016.11.128] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Revised: 11/24/2016] [Accepted: 11/25/2016] [Indexed: 06/06/2023]
Abstract
Groundwater fluctuation is often overlooked and lack of study in the field contaminant hydrogeology. Hydraulic force from fluctuating groundwater tables leads to dissolution and subsequent enhanced advective transport of petroleum (e.g. BTEX) in contaminated subsurface system. A laboratory investigation of effect of the groundwater table fluctuation (GTF) on BTEX transport, taking toluene as a typical compound, in a typical representative model of aquifers subjected to a daily water-table fluctuation was undertaken in this work. Results showed that toluene in effluent degraded significantly with cycles of GTF, and the attenuation rates differed in porous media types with higher value for fine-coarse sand media (13.7 mg L-1 d-1) and lower for fine sand-clay media (2.8 mg L d-1). Hydraulic and hydrochemical evidences inferred that toluene attenuation was controlled mainly by flushing effect in the initial GTF cycle stages, followed by dissolution and mixing action in the later stages. Meanwhile, adsorption was found to take effects in toluene behavior throughout the whole GTF process, particularly obvious in fine sand-clay media with its toluene attenuation rate of only 2.8 mg L d-1.
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Affiliation(s)
- Y S Yang
- Key Lab of Groundwater Resources and Environment, Jilin University, Ministry of Education, Changchun, 130021, PR China; Key Lab of Eco-restoration of Region Polluted Environment, Shenyang University, Ministry of Education, Shenyang, 110044, PR China
| | - Panpan Li
- Key Lab of Groundwater Resources and Environment, Jilin University, Ministry of Education, Changchun, 130021, PR China
| | - Xi Zhang
- Key Lab of Groundwater Resources and Environment, Jilin University, Ministry of Education, Changchun, 130021, PR China
| | - Mingjie Li
- Key Lab of Groundwater Resources and Environment, Jilin University, Ministry of Education, Changchun, 130021, PR China
| | - Ying Lu
- Key Lab of Groundwater Resources and Environment, Jilin University, Ministry of Education, Changchun, 130021, PR China.
| | - Bin Xu
- Key Lab of Groundwater Resources and Environment, Jilin University, Ministry of Education, Changchun, 130021, PR China
| | - Tong Yu
- Key Lab of Groundwater Resources and Environment, Jilin University, Ministry of Education, Changchun, 130021, PR China
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French HK, Kästner M, van der Zee SEATM. New approaches for low-invasive contaminated site characterization, monitoring and modelling. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2014; 21:8893-6. [PMID: 24756671 DOI: 10.1007/s11356-014-2840-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Accepted: 03/25/2014] [Indexed: 05/26/2023]
Affiliation(s)
- Helen K French
- Environmental Sciences, Norwegian University of Life Sciences, P.O.Box. 5003, 1432, Ås, Norway,
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