With the rapid development of the hydrometallurgy industry,the issue of zero discharge of industrial wastewater from its industrial production process has increasingly become a hot topic of concern in the industry.The effect of pretreatments times,loading height,operating flow rate and temperature on the working volume exchange capacity was investigated in a comparative test using two mixed beds,DDC600/DDA500 and 001×7MB/201×7MB,for the removal of salts from NaCl and Na₂SO₄ condensate wastewater generated by MVR.The results showed that the mixed bed was most effective in removing salts and the effluent could meet the reuse requirements at a pretreatment frequency of 3 times,a mixed bed height of 0.225 m,an operating flow rate of 20 m/h and a temperature of 20 °C.Thomas adsorption model was used to fit the Na⁺ dynamic adsorption pro-cess,and the correlation coefficient R² was ranged from 0.965 4 to 0.981 0,so there was a high fitting effect,and the relative deviations between the calculated theoretical and actual adsorption amounts were ranged from 3.97% to 6.89%.The MVR condensate wastewater could be reused after treatment,providing a useful reference for achieving a true convergence to zero discharge.