To pick the best liner for a tailings pond, design considerations include material selection, thickness, and compatibility with the contained tailings and environmental conditions. The geomembrane material, often high-density polyethylene (HDPE), must offer high chemical resistance to prevent degradation from acids, heavy metals, and other mining byproducts. Thickness is another important factor, with thicker liners providing greater puncture resistance and durability.
Proper installation and seam welding techniques ensure impermeability and structural integrity. The liner system must also accommodate thermal expansion and contraction due to temperature variations. Drainage layers and leak detection systems are typically incorporated to manage seepage and detect any breaches early.