Application of electrical resistivity tomography (ERT) for vertical high-density polyethylene (HDPE) membrane detection

Abstract At landfill sites, uncontrolled leachate is a serious cause of groundwater and soil contamination at landfills can occur extensively when there are looploopholesin the vertical HDPE (High-density polyethylene) membrane. For this reason, detecting membranes necessary. The conventional electrode running poles approach limited, it reflects distribution resistivity in 2D subsurface profiles, which difficult to deploy electrodes above According structural characteristics field conditions membranes, two-row current potential (CP) array proposed be applied testing membranes. forward geoelectric model vulnerability was built using pyGimli, data on 1519 apparent were acquired. previous knowledge without taken into consideration as constraint condition, regional control added conduct inversion, all least square approach. used analyze detection In Yancheng, flaws discovered. Results show that CP electrical measuring device efficient, quick, accurate positioning membrane hole detection, cost-effective method. To verify results, membrane, through Wenner device, inversion profile, low anomalies detected. This thought leakage resistance rate about 1.8 ohm. findings demonstrate susceptibility may located detected instrument, practical efficient