Research on Double Salt Stream Electroredox Desalination of Mine Water
In this paper,a double salt stream electroredox desalination(DSSED)system is employed to treat simulated mine water from the Ningdong Coal Mine.Firstly,the energy consumption,salt removal rate,and durability of 6 000 mg/L NaCl saltwater treated by the DSSED under different voltages and electrolyte concen-trations are compared.The results indicate that the energy consumption of the DSSED system for treating 6 000 mg/L NaCl saltwater is less than 0.2 kW·h/m3,and the highest average salt removal rate can reach 197.5 μg/(cm2·min),demonstrating good stability and repeatability.Under the best working conditions,the DSSED system can desalinate simulated mine water from the Ningdong Coal Mine to freshwater level(＜500 mg/L)within 4 hours,achieving an average salt removal rate of 160 μg/(cm2·min),an ion removal rate of 90％,and an energy consumption of 0.397 kW·h/m3.This study provides a new solution for the treatment of high-concentration saltwater in the Ningdong area.
mine water desalinationelectroredox[Fe(CN)6]3-/[Fe(CN)6]4-high concentration saltwater
万方数据
维普
