Geomembranes are permeable fabrics which when used together with soil have the capacity to isolate, filter, support, protect and drain. Geomembranes were previously used as canal and pond liners. However the current and largest application is controlling dangerious wastes. In several of these applications, geomembarnes are concurrently used with geotextiles or mesh which offer reinforcement or protection to the flexible geomembrane while at the same act as outlets for gases and leachates generated in certain wastes.
