Michael Tost, head of the Department of Mining Engineering and Economics of Mineral Resources at Montan University in Leoben, said the proposed lithium mine in the Jadar Valley would be developed as an underground operation. He specified that the mine would reach depths of 400 to 700 meters. According to Tost, this approach is intended to limit effects on surface soil and on drinking water and groundwater at those depths.
In an interview with Demostat, Tost said he has extensive mining industry experience and previously led the Mining and Metals Sector at the World Economic Forum in Davos. He emphasized the need to base discussions on factual information rather than opinions shared via social media.
Underground design and continued surface agriculture
Tost said the planned mining operation would not require large surface excavations. He stated that this would allow agricultural activities to continue above ground. He also reiterated that public debate should focus on verified information rather than speculation circulated online.
Closed processing systems and leak prevention
The mine would use closed systems placed on concrete bases, which Tost referred to as tankvans. He said these structures would be built to industry standards intended to reduce pollution risks. If leaks were to occur, an additional protective layer would be used to prevent contaminants from reaching the ground.
Waste disposal, groundwater depth limits, and water recycling
Tost said waste would be stored in specially designed landfills with protective layers intended to avoid environmental harm. He noted that groundwater at mining depths is not suitable for drinking or agricultural use. Wells, he said, are located much shallower at 20 to 30 meters.
He added that mine water would be collected and purified, with the aim of enabling recycling during later stages of mining operations. Tost also said sulfuric acid would be used only within closed systems for ore processing, and that its use would be minimized to avoid excess waste and cost.
Air controls for sulfuric acid fumes
Tost said measures including scrubber filters are planned to prevent sulfuric acid fumes from entering the air. He described these controls as part of efforts to mitigate environmental risks associated with processing.
Dry compacted storage approach and research priorities
Tost highlighted responsible waste management practices that include Rio Tinto’s dry compacted storage approach, which he described as relatively new technology. He said Montan University is committed to advancing research related to this method. The research focus is presented as support for sustainable practices in the mining industry.