To control AMD, geomembranes are installed as a bottom liner in waste containment facilities or tailings ponds. The geomembrane acts as an impermeable barrier, preventing acidic water from seeping into the soil or groundwater. Acid mine drainage (AMD) is a significant environmental concern that arises from mining activities, particularly in the extraction of coal and metals. AMD occurs when water reacts with sulfide minerals present in mine waste, resulting in the release of acidic water that can contaminate nearby water sources. Geomembranes are an effective tool for controlling AMD, and are commonly used in the construction of waste containment facilities and tailings ponds.
In addition to preventing the release of acidic water, geomembranes can also be used in the treatment of AMD. In some cases, the acidic water may be collected and treated using lime or other chemicals to raise the pH and neutralize the acidity. Geomembranes can be used to contain the treated water, preventing it from re-entering the environment and causing further contamination.
