The comprehensive evaluation of water resources and the integrated demonstration of key water-saving technologies in Qinghai Salt Lake Mining Area have achieved remarkable results

The project integrates the use of ultrasonic waves based on the characteristics of the world's advanced production processes such as reverse flotation-cold crystallization, hot solution crystallization, dehydration-melting electrolysis and refining furnace refining, and ion exchange adsorption in the Salt Lake mining area. We have established a three-level water balance technology system in the Salt Lake Mining Area using various water balance testing methods such as method and volumetric method, and established water resource evaluation technology suitable for Qinghai's high-cold, high-altitude, water-scarce areas. Through the analysis of regional multiple water source guarantees, a priority water withdrawal plan for the Salt Lake Mining Area was formed, and the boundary and degree of impact of water withdrawal on groundwater in the Salt Lake Mining Area were evaluated. New technologies such as reverse osmosis water treatment of concentrated lithium eluent, alkaline water recovery of potassium hydroxide production system, and water bath dust removal wastewater recovery in potash fertilizer production have been developed to improve the utilization efficiency of water resources in the Salt Lake mining area.

　(Original title: Comprehensive assessment of water resources and key water-saving technology integration demonstration in Qinghai Salt Lake Mining Area has achieved remarkable results)