Landfill Leakage Detection Using ERT

In this work we applied the electrical resistivity tomography technique in an attempt to locate areas of leakage in a lined landfill. A systematic ERT survey was carried out using dipole-dipole and pole-dipole forward and reverse arrays. Based on the explanation of the different inversion images obtained over the same line for the the different electrode arrays we propose an interpretation approach which can be used for identifying leakage within a geomembrane liner landfill. Further, the systematic survey with dipole-dipole and pole-dipole (forward and reverse) arrays and the combined graphical interpretation can be used to locate potential leakage area.