Amid a search for alternatives to using mercury to recover gold, the Guyana Geology and Mines Commission (GGMC) is inviting interested medium and large scale mine operators to submit proposals to operate and manage two Knelson concentrator processing plants despite fears they are expensive.
The Knelson concentrator is a gravity concentration apparatus, mainly used in the gold mining industry for the recovery of fine particles of free gold. It does not involve the use of mercury
