17# Integrated management of tailings
The 17# tailings have been levelled and landfilled; and the above area has been subjected to contaminated soil remediation and treatment. In accordance with the "Keketuohai Industrial and Mining Area Ecological Environment Governance Planning", the open-pit mining site of No.3 vein is implemented with stepped stockpiling, and the slope of the waste rock tailing heap is repaired, covered with greening, dust suppression and dust reduction effect. The crushing plant to the mine park car park and silicon carbide plant, machinery plant, 8766 tailings storage, machinery plant to replace 300,000 square metres of soil, vegetation restoration 101,831.8 square metres.