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What are the treatment methods of mining wastewater
Mine acid wastewater treatment methods mainly include neutralization method, sulfidation method, sedimentation flotation method, extraction electrowinning method, biochemical method, etc. However, these methods have many problems, especially secondary pollution. The application of ultra-low pressure reverse osmosis membrane in the process of mine acid wastewater treatment and reuse has effectively improved the problems of the former, and has shown great advantages in industrial wastewater treatment.
The ultra-low pressure reverse osmosis membrane is used to treat the secondary treated mine acid wastewater. The ultra-low pressure reverse osmosis membrane has a retention rate of 99% for heavy metal ions. The concentration of Nl2+, Cu2+, Zn2+, and Pb2+ in the permeate is all less than 0.4mg/ L, the total conductivity of the permeate is 100us/cm, which meets the requirements of reused water, and the concentrate can be further recycled.