CST Wastewater Technology has recently installed a dewatering plant at Anglo Platinum’s Modikwa Mine to effectively manage its water supply.
“This plant has allowed the mine to minimise the stress placed on the mining region’s extremely limited water supply by managing its water resources more efficiently,” CST Wastewater Technology managing director Mike Bambridge says.
According to CST Wastewaster Technology, the filter press detwaters the sludge, producing a dry filter cake. The clarified water is simultaneously stored in a storage tank awaiting re-use in the mining operations, with 98% of the processed water being recovered.
“Essentially, the plant allows the mine to reduce its production costs by recycling its water, and providing the mine with the option to process already mined ore, achieving platinum recovery of approximately 4g/t of filter cake,” he says.
"Sustainable water recovery and re-use allows for the reduction in excessive transport and handling costs required to obtain water, as well as the costs involved in the disposal of the slurry to landfill sites,” Bambridge says.
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