BQE Water, a leader in the management of mine wastewater and metallurgical bleed streams, has been retained by GoGold Resources to supply a SART plant at the Parral tailings project in Chihuahua. The contract comes after on site testing and preliminary assessment of SART integration into the metallurgical process at Parral that were completed earlier by BQE Water.
Under the contract, BQE Water’s scope of work will include plant engineering design, process automation, engineering support during procurement and construction, plant commissioning, and ongoing operations support after plant start-up. The plant construction is expected to be completed by the end of Q4 2019. Once the plant is commissioned, BQE Water will provide operations support services for a monthly fee for a period of three years.
Owned and operated by GoGold Resources, the Parral project involves the reprocessing of old tailings to recover silver and gold by conventional cyanidation. In addition to the precious metals, the tailings also contain significant quantities of cyanide soluble copper and zinc. These base metals compete for cyanide, causing high cyanide consumption and increasing operating costs.
Invented in the mid-1990s by Dr. Chris Fleming at Lakefield Research, the SART (sulphidation-acidification-recycling-thickening) process recovers copper from cyanide leach solution while allowing free cyanide to be recycled back to the leaching of precious metals. This lowers the cost of gold extraction and reduces the environmental footprint of gold mining projects.
This story first appeared in the Canadian Mining Journal