Shanghai Landfill Leak Detection

Background

This landfill has been in operation for over 15 years, covering approximately 120,000 m². As it enters the closure phase, assessing the integrity of the liner system became a critical task. Traditional manual inspection could not effectively cover the entire area or pinpoint micro-defects in the deep liner layer.

Challenge

The project faced three major challenges: large area with complex terrain and thick waste cover; detection without disrupting ongoing operations; and separate evaluation of both the HDPE geomembrane and compacted clay composite liner.

Solution

The SENEVEN team deployed proprietary high-density electrical leak detection technology combined with 3D geological modeling algorithms to achieve non-destructive testing of the entire liner system. High-precision electrode arrays collected tens of thousands of potential data points, with inversion algorithms pinpointing the 3D coordinates of each leak.

Results