Image: By Geomartin
Processing of ore at the mine takes place without the use of Mercury or Cyanide. A metals concentrate is produced that contains gold,silver and lead minerals from the ore. The concentrate is produced by a non-toxic method called froth flotation. Froth flotation relies on the surface properties of the metallic compounds present to preferentially adhere to air bubbles. It is a long established, safe and simple technology. The metals concentrate is shipped to a well-regulated smelter via Belfast port.
The small amount of frothing agents used are bio-degradeable and have no impact on mine water.