Geomembrane liners in heap leach operations prevents the loss of valuable material and also prevents toxic liquids from migrating into the ground. Low value ore deposits are dissolved by chemicals applied to the top of the heap, which eventually leach to the bottom of the pile. Here a geomembrane liner captures the solution preventing it from migrating into the ground, before directing the solution by gravity to a collection system. Once captured by the geomembrane liner, the metal-rich solution is directed by gravity to a collection system and from there to a refinery.
the HDPE geomembrane liner serves as a barrier for separation and is also the most important component in heap leaching. The geomembrane must resist chemical attack, point loads from typically high heap loading conditions, site-specific topography, site-specific climate conditions, and site-specific construction conditions.
