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ELECTRICAL RESPONSE OF A LEAK IN A GEOMEMBRANE LINER
Citation:
Para, J. ELECTRICAL RESPONSE OF A LEAK IN A GEOMEMBRANE LINER. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/J-88/535.
Description:
A leak in a geomembrane lined impoundment or landfill has a characteristic electrical response. imulate the waste material, the liner, and the soil under the liner by infinite horizontal layers and express the secondary potential for a leak in the geomembrane liner in terms of a three-layer medium Green's function and in the unknown current density distribution at the leak. he area of the leak is sufficiently small for the leak current density to be essentially uniform. dd the primary potential associated with a leak-free liner to the secondary potential to form an integral equation and derive a general expression for the current density at the boundary between the waste material and the liner from the expression for the current determine the current flow through the leak and the amplitude of the anomaly response. ultiple circular leaks in the thin resistive liner are included In the analysis. he potential anomaly of a leak is a localized response which is capable of providing a useful means for detecting and locating such leaks accurately in large waste disposal sites or landfills. xcellent agreement between peridental and model data shows my general solution is accurate in predicting leak signatures and solution may be useful to model field data acquired in geomembrane lined impoundments or landfills.