Heap Leaching :: Gold Mining Miners Minerals Essays

Heap Leaching Heap leaching is a method used most commonly for the mining of gold. Along with heap leaching comes many environmental concerns and considerations. In order to decrease these environmental concerns, there must be regulations placed on the mining of gold. Regulations can stem from control acts, enforced by the Department of Energy and other agencies similar to this, to simple regulations dealing with the equipment companies must use in their daily excavations. The heap leaching method used to extract gold uses cyanide as part of the process. This can be â€Å"toxic to fish and wildlife† and is therefore an environmental concern with the mining of gold (Bartlett 79). Some other concerns taken into consideration when dealing with gold mining and heap leaching are â€Å"preventing bird poisoning on wet heaps and solution storage ponds [†¦as well as amounts of] wind blown dust and other air contaminants [which] can be serious† problems spreading throughout the environment (Bartlett 79). Contamination of surface and ground waters is a major concern as a side effect of heap leaching (Bartlett 79). There has been action taken in order to reduce the possibility of any of these environmental considerations taking place during and after the process of heap leaching. It is recommended that in order to regulate heap leaching of gold, companies use methods of containment along with close monitoring in order to recognize problems before they occur (Bartlett 79-80). As I stated in my second essay, the ore and solution removed from the heap leaching process is discarded onto leach pads. These pads are the â€Å"most important element[s] of the solution containment system† (Bartlett 80). The leach pads help prevent toxic solutions from running off into the surrounding areas and therefore they decrease the risk of harming any living organisms living in the area the mining is occurring in. â€Å"Proper foundation preparation is necessary to prevent movement and tearing of the liner† of the leach pad (Bartlett 80). If this were to happen then the leach pad would not be a sufficient means of protection for the environment. Another way to protect the environment is by having a solution collection system.