Assessment of landfill leachate in Nam Son, Hanoi using 3D electrical imaging and self-potential data
The main objective of this study was to assess the environmental impact of the Nam Son landãll on the subsurĩace geological structure studied using 3D electrical imaging and self-potential investigations. The map of the equipotential was based on self-potential data and was indicative of concentrat...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Vietnam Ministry of Science and Technology
2017-09-01
|
| Series: | Vietnam Journal of Science, Technology and Engineering |
| Subjects: | |
| Online Access: | https://vietnamscience.vjst.vn/index.php/vjste/article/view/291 |
| _version_ | 1797937734513328128 |
|---|---|
| author | Van Giang Nguyen Quang Dung Nguyen Ba Duan Nguyen |
| author_facet | Van Giang Nguyen Quang Dung Nguyen Ba Duan Nguyen |
| author_sort | Van Giang Nguyen |
| collection | DOAJ |
| description |
The main objective of this study was to assess the environmental impact of the Nam Son landãll on the subsurĩace geological structure studied using 3D electrical imaging and self-potential investigations. The map of the equipotential was based on self-potential data and was indicative of concentrations of redox-active components, and the map of the electrical conductivity provided intormatỉon about the mineralỉzation of the groundwater. The electrical conductivity of the subsurface was obtaỉned from 3D-electrical imaging analysis conducted using a Wenner-based array conhguration. An ỉnversion of the data was carried out using 3D regularixed least-squares optimization methods with robust model constraints. Three prohles of 3D electrical imaging and 180 setf- potential data points, scattered within the study area near the disposal site, were implemented. The self-potential method supports the results of the geoelectrical method relating to a contaminated zone in the survey area with a large negative seư-potential anomaly of ~-260 mV with respect to the reĩerence of a contamỉnant plume. Interpretations of geophysical data showed a low resistivity zone (<10 Í2 m), which appeared to be a íiilly saturated zone with leachate from the Nam Son open dumpsite. The correlation between geophysical investigations and hydrochemical analysis proved to show high conductivity zones related with landbll leachate.
|
| first_indexed | 2024-04-10T18:48:56Z |
| format | Article |
| id | doaj.art-1bc848589ffd4d6aac6608a2c66df07f |
| institution | Directory Open Access Journal |
| issn | 2525-2461 2615-9937 |
| language | English |
| last_indexed | 2024-04-10T18:48:56Z |
| publishDate | 2017-09-01 |
| publisher | Vietnam Ministry of Science and Technology |
| record_format | Article |
| series | Vietnam Journal of Science, Technology and Engineering |
| spelling | doaj.art-1bc848589ffd4d6aac6608a2c66df07f2023-02-01T08:22:35ZengVietnam Ministry of Science and TechnologyVietnam Journal of Science, Technology and Engineering2525-24612615-99372017-09-0159310.31276/VJSTE.59(3).71Assessment of landfill leachate in Nam Son, Hanoi using 3D electrical imaging and self-potential dataVan Giang Nguyen0Quang Dung Nguyen1Ba Duan Nguyen2Institute of Geophysics, VASTHo Chi Minh City Institute of Resources Geography, VASTInstitute of Geophysics, VAST The main objective of this study was to assess the environmental impact of the Nam Son landãll on the subsurĩace geological structure studied using 3D electrical imaging and self-potential investigations. The map of the equipotential was based on self-potential data and was indicative of concentrations of redox-active components, and the map of the electrical conductivity provided intormatỉon about the mineralỉzation of the groundwater. The electrical conductivity of the subsurface was obtaỉned from 3D-electrical imaging analysis conducted using a Wenner-based array conhguration. An ỉnversion of the data was carried out using 3D regularixed least-squares optimization methods with robust model constraints. Three prohles of 3D electrical imaging and 180 setf- potential data points, scattered within the study area near the disposal site, were implemented. The self-potential method supports the results of the geoelectrical method relating to a contaminated zone in the survey area with a large negative seư-potential anomaly of ~-260 mV with respect to the reĩerence of a contamỉnant plume. Interpretations of geophysical data showed a low resistivity zone (<10 Í2 m), which appeared to be a íiilly saturated zone with leachate from the Nam Son open dumpsite. The correlation between geophysical investigations and hydrochemical analysis proved to show high conductivity zones related with landbll leachate. https://vietnamscience.vjst.vn/index.php/vjste/article/view/291contaminant plumeelectrical imagingfluid conductivitylandfill leachateself-potential |
| spellingShingle | Van Giang Nguyen Quang Dung Nguyen Ba Duan Nguyen Assessment of landfill leachate in Nam Son, Hanoi using 3D electrical imaging and self-potential data Vietnam Journal of Science, Technology and Engineering contaminant plume electrical imaging fluid conductivity landfill leachate self-potential |
| title | Assessment of landfill leachate in Nam Son, Hanoi using 3D electrical imaging and self-potential data |
| title_full | Assessment of landfill leachate in Nam Son, Hanoi using 3D electrical imaging and self-potential data |
| title_fullStr | Assessment of landfill leachate in Nam Son, Hanoi using 3D electrical imaging and self-potential data |
| title_full_unstemmed | Assessment of landfill leachate in Nam Son, Hanoi using 3D electrical imaging and self-potential data |
| title_short | Assessment of landfill leachate in Nam Son, Hanoi using 3D electrical imaging and self-potential data |
| title_sort | assessment of landfill leachate in nam son hanoi using 3d electrical imaging and self potential data |
| topic | contaminant plume electrical imaging fluid conductivity landfill leachate self-potential |
| url | https://vietnamscience.vjst.vn/index.php/vjste/article/view/291 |
| work_keys_str_mv | AT vangiangnguyen assessmentoflandfillleachateinnamsonhanoiusing3delectricalimagingandselfpotentialdata AT quangdungnguyen assessmentoflandfillleachateinnamsonhanoiusing3delectricalimagingandselfpotentialdata AT baduannguyen assessmentoflandfillleachateinnamsonhanoiusing3delectricalimagingandselfpotentialdata |