Evaluation of landfill disposal boundary by means of electrical resistivity imaging |
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| Authors: | Vladimir Frid Gady Liskevich Dmitriy Doudkinski Nikolay Korostishevsky |
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| Institution: | (1) Geotechnical Department, Isotop, POB 2, Gedera, 70700, Israel |
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| Abstract: | This paper deals with an employment of electrical resistivity imaging (ERI) for survey of leachate content on the waste disposal
site in Northern Israel. The research consisted of conducting ten ERI lines and drilling investigation wells. Data simulation
used a 2D EarthImager inversion program. Analysis of 2D ERI interpretation results shows that determination of the boundary
between the landfill body bottom intensively saturated with leachates and underlying layers of highly water saturated fat
nonconsolidated clays presents a challenge. However, statistical analysis of ERI data indicates that standard deviation and
confidence interval of a set of resistivity data measured in the landfill body are significantly larger than those in underlying
clays. Moreover, maximum changes of these parameters are found on the boundary between landfill body and underlying soil,
thus reflecting natural differences in scattering of resistivity data measured in these two objects. |
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| Keywords: | Waste landfill Electrical imaging survey Electrical resistivity tomography |
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