The geomembrane is among the most important components of a brine evaporation pond. Geosynthetic liners (geomembranes) play a key role in the construction of brine evaporation ponds, serving as a barrier to prevent loss of the precious slurry. The barrier also separates the brine from the surrounding soil.
Liners are used in evaporation ponds in salt mining operations. Water is pumped through wells into and out of the underground salt formations bringing the brine solution to the surface, where the sun evaporates the water, leaving the salt for recovery.