Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/3684| DC Field | Value | Language |
|---|---|---|
| dc.contributor.authorall | Radulescu, M.; Conestoga Rovers and Associates, Waterloo, Ontario, Canada | en |
| dc.contributor.authorall | Valerian, C.; Avalanche Mobile Development, Bucharest, Romania | en |
| dc.contributor.authorall | Yang, J.; Department of Earth and Environmental Sciences, University of Windsor, Windsor, Ontario, Canada | en |
| dc.date.accessioned | 2008-02-26T13:35:33Z | en |
| dc.date.available | 2008-02-26T13:35:33Z | en |
| dc.date.issued | 2007-06 | en |
| dc.identifier.uri | http://hdl.handle.net/2122/3684 | en |
| dc.description.abstract | The extent of landfill leachate can be delineated by geo-electrical imaging as a response to the varying electrical resistivity in the contaminated area. This research was based on a combination of hydrogeological numerical simulation followed by geophysical forward and inversion modeling performed to evaluate the migration of a contaminant plume from a landfill. As a first step, groundwater flow and contaminant transport was simulated using the finite elements numerical modeling software FEFLOW. The extent of the contaminant plume was acquired through a hydrogeological model depicting the distributions of leachate concentration in the system. Next, based on the empirical relationship between the concentration and electrical conductivity of the leachate in the porous media, the corresponding geo-electrical structure was derived from the hydrogeological model. Finally, forward and inversion computations of geo-electrical anomalies were performed using the finite difference numerical modeling software DCIP2D/DCIP3D. The image obtained by geophysical inversion of the electric data was expected to be consistent with the initial hydrogeological model, as described by the distribution of leachate concentration. Numerical case studies were conducted for various geological conditions, hydraulic parameters and electrode arrays, from which conclusions were drawn regarding the suitability of the methodology to assess simple to more complex geo-electrical models. Thus, optimal mapping and monitoring configurations were determined. | en |
| dc.language.iso | English | en |
| dc.relation.ispartofseries | 3/50 (2007) | en |
| dc.subject | landfill | en |
| dc.subject | hydrogeological modeling | en |
| dc.subject | salinity | en |
| dc.subject | resistivity | en |
| dc.subject | geophysical forward and inverse modeling | en |
| dc.title | Time-lapse electrical resistivity anomalies due to contaminant transport around landfills | en |
| dc.type | article | en |
| dc.type.QualityControl | Peer-reviewed | en |
| dc.subject.INGV | 04. Solid Earth::04.04. Geology::04.04.99. General or miscellaneous | en |
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HUTSON (2002): Laboratory investigations of variable-density flow and solute transport in unsaturated-porous media, Transport in Porous Media, 206, 219-236. SINGHA, K. and S.M. GORELICK (2005): Saline tracer visualized with electrical resitivity tomography: field scale spatial moment analysis, Water Resour. Res., 41, W05023, doi: 10.1026/2004WR003640. TEZKAN, B. (1999): A review of environmental applications of quasi-stationary electromagnetic techniques, Surv. Geophys. J., 20 (3-4), 279-308. TIMUR, H., I. OZTURK, M. ALTINBAS, A. ARIKAN and B.S. TUYLUOGLU (2000): Anaerobic treatability of Leachate: a comparative evaluation for three different reactor systems, Water Sci. Technol., 42 (1-2), 287-292. WASY GmbH (2005), Institute for Water Resources, Planning and Systems Research, Berlin-Bohnsdorf, Germany. YANG, J. (2005): Geo-electrical responses associated with hydrothermal fluid circulation in oceanic crust: feasibility of magnetometric and electrical resistivity methods in mapping off-axis convection cells, Explor. Geophys., 36, 272-277. | en |
| dc.description.journalType | JCR Journal | en |
| dc.description.fulltext | open | en |
| dc.contributor.author | Radulescu, M. | en |
| dc.contributor.author | Valerian, C. | en |
| dc.contributor.author | Yang, J. | en |
| dc.contributor.department | Conestoga Rovers and Associates, Waterloo, Ontario, Canada | en |
| dc.contributor.department | Avalanche Mobile Development, Bucharest, Romania | en |
| dc.contributor.department | Department of Earth and Environmental Sciences, University of Windsor, Windsor, Ontario, Canada | en |
| item.openairetype | article | - |
| item.cerifentitytype | Publications | - |
| item.languageiso639-1 | en | - |
| item.grantfulltext | open | - |
| item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
| item.fulltext | With Fulltext | - |
| crisitem.author.dept | Conestoga Rovers and Associates, Waterloo, Ontario, Canada | - |
| crisitem.author.dept | Avalanche Mobile Development, Bucharest, Romania | - |
| crisitem.author.dept | Department of Earth and Environmental Sciences, University of Windsor, Windsor, Ontario, Canada | - |
| crisitem.classification.parent | 04. Solid Earth | - |
| Appears in Collections: | Annals of Geophysics | |
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|---|---|---|---|---|
| 13radulescu.pdf | 2.21 MB | Adobe PDF | View/Open |
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