EM and GPR investigations of contaminant spread around the Hoc Mon waste site, Vietnam

• Autorzy: Van Giang N. , Marquis G. , Minh L.H.
• Języki publikacji: EN

Abstrakty

EN

This paper is presenting the results from near-surface geophysical surveys near the waste site of Hoc Mon in southern Vietnam where leachate contamination has been recognized at the surface. Using EM and GPR surveys, we were able to determine the lateral extent of a contaminated area of high electrical conductivity and have identified channels that concentrate the contaminant flow. The simple relationship between the electrical resistivity and the leachate concentration is suggested and estimated the in situ leachate concentration from the inversion of the EM data; values are as high as 40%. Thanks to a permeability barrier leachate flow is confined to the shallow subsurface, making it easier to apply possible site remediation projects.

Słowa kluczowe

EN

electromagnetic method; leachate flow; ground penetrating radar; contaminant concentration

• Wydawca: Instytut Geofizyki PAN ; Springer
• Czasopismo: Acta Geophysica
• Rocznik: 2010
• Tom: Vol. 58, no. 6
• Strony: 1040--1055
• Opis fizyczny: Bibliogr. 20 poz.

Twórcy

autor

Van Giang N.

autor

Marquis G.

autor

Minh L.H.

• Institute of Geophysics, Vietnamese Academy of Science and Technology, Hanoi, Vietnam,

Bibliografia

• Abu-Zeid, N., G. Bianchini, G. Santarato, and C. Vaccaro (2004), Geochemical characterisation and geophysical mapping of landfill leachates: the Marozzo canal case study (NE Italy), Environ. Geol. 45, 4, 439-447.
• Anderson, W.L. (1979), Numerical integration of related Hankel transforms of orders 0 and 1 by adaptive digital filtering, Geophysics 44, 7, 1287-1305,.
• Baedecker, M.J., and W. Back (1979), Hydrogeological processes and chemical reactions at a landfill, Ground Water 17, 5, 429-437.
• Bano, M. (2006), Effects of the transition zone above a water table on the reflection of GPR waves, Geophys. Res. Lett. 33, L13309.
• Bano, M., G. Marquis, B. Nivière, J.C. Maurin, and M. Cushing (2000), Investigating alluvial and tectonic features with ground-penetrating radar and analyzing diffractions patterns, J. Appl. Geophys. 43, 1, 33-41.
• Bernstone, C., T. Dahlin, T. Ohlsson, and W. Hogland (2000), DC-resistivity map ping of internal landfill structures: two pre-excavation surveys, Environ. Geol. 39, 360-371.
• Christensen, T.H., P.L. Bjerg, S.A. Banwart, R. Jakobsen, G. Heron, and H.J. Albrechtsen (2000), Characterization of redox conditions in groundwater contaminant plumes, J. Contam. Hydrol. 45, 3-4, 165-241.
• Daniels, D.J. (1996), Surface-Penetrating Radar, Institution of Electrical Engineers, London, UK, 300 pp.
• Girard, J.F. (2002), Imagerie géoradar et modélisation des diffractions multiples, Ph.D. Thesis, University of L. Pasteur, Strasbourg.
• Guérin, R., M.L. Munoz, C. Aran, C. Lapperrelle, M. Hidra, E. Drouart, and S. Grellier (2004), Leachate recirculation: moisture content assessment by means of a geophysical technique, Waste Mgmt. 24, 8, 785-794.
• Jorstad, L.B., J. Jankowski, and R.I. Acworth (2004), Analysis of the distribution of inorganic constituents in a landfill leachate-contaminated aquifer: Astrolabe Park, Sydney, Australia, Environ. Geol. 46, 2, 263-272.
• McNeill, J.D. (2000), Application of dipole-dipole electromagnetic systems for geological depth sounding, Technical Note TN-31, Geonics Limited, Mississauga, Canada.
• Naudet, V., A. Revil, J.Y. Bottero, and P. Bégassat (2003), Relationship between self-potential (SP) signals and redox conditions in contaminated groundwater, Geophys. Res. Lett. 30, 21, 2091.
• Nobes, D.C., M.J. Armstrong, and M.E. Close (2000), Delineation of a landfill leachate plume and flow channels in coastal sands near Christchurch, New Zealand, using a shallow electromagnetic survey method, Hydrogeol. J. 8, 3, 328-336.
• Oh, M.H., J.H. Lee, G.L. Yoon, and J. Park (2003), Pilot-scale field model tests for detecting landfill leachate intrusion into the subsurface using a grid-net electrical conductivity measurement system, Environ. Geol. 45, 2, 181-189.
• Tezkan, B. (1999), A review of environmental applications of quasi-stationary electromagnetic techniques, Surv. Geophys. 20, 3-4, 279-308.
• Ward, S.H., and G.W. Hohmann (1988), Electromagnetic theory for geophysical applications. In: M.N. Nabighian (ed.), Electromagnetic Methods in Applied Geophysics, Vol. 1: Theory, Society of Exploration Geophysicists, Tulsa,131-311.
• Won, I.J., D.A. Keiswetter, G.R.A. Fields, and L.C. Sutton (1996), GEM-2: A new multifrequency electromagnetic sensor, J. Environ. Eng. Geoph. 1, 129-138.
• Yoon, G.L., and J.B. Park (2001), Sensitivity of leachate and fine contents on electric al resistivity variations of sandy soils, J. Hazard. Mater. 84, 2-3, 147-161.
• Zhang, Z., P.S. Routh, D.W. Oldenburg, D.L. Alumbaugh, and G.A. Newman (2000), Reconstruction of 1-D conductivity from dual-loop EM data, Geophysics 65, 492-501.