Electroplate chromium -containing wastewater's processing apparatus

The utility model discloses an electroplate chromium -containing wastewater's processing apparatus, wherein processing apparatus is arranged in the preprocessor that detaches chromium -containing wastewater's suspended impurity, grease and iron ion including one, preprocessor has connected gradually cation exchange ware, anion exchange ware, advanced treatment sun bed and the cloudy bed of advanced treatment through the pipeline, wherein, chromium -containing wastewater gets into in proper order and carries out preliminary desalination in cation exchange ware and the anion exchange ware after preprocessor carries out the preliminary treatment, to go out water again and loop through advanced treatment sun bed and carry out desalination once more with cloudy of advanced treatment, reduce the conductivity of a water, obtain the recoverable demineralized water that is used for the chromium plating rinsing. The utility model discloses an adopting the cloudy bed system of second grade sun, both having eliminated the environmental pollution of hexavalent chromium, can obtain high -quality demineralized water simultaneously, running water, demineralized water quantity are practiced thrift in retrieval and utilization in production, have good economic benefits.