Practice of deep treatment of dewatering water in ultra-high salinity mine
It introduces the current situation and renovation design of the deep treatment system of dewatering water in a typical ultra-high salinity mine in Ningdong region of Ningxia.Ultrafiltration(UF)+reverse osmosis(RO)technology is used in the advanced treatment process.In view of the problems existing in the design and operation of the original advanced treatment system,a corresponding solution is proposed in the transformation engineering design.The operation results after the implementation of the renovation project show that the ultrafiltration+reverse osmosis system is stable and reliable,and the water quality meets the water quality standard of reuse water.The water output of the in-depth treatment and renovation project is 9 600 m3/d,and the annual emission reduction is nearly 3.5 million t/a after completion.
high salinitymine drainage waterultrafiltrationreverse osmosis