1. A method for treating Basic Copper Chloride production wastewater, characterized by comprising the following steps:
Step I, performing solid-liquid separation treatment on the production wastewater to obtain a first supernatant, adding ammonia water into the first supernatant to form a mixed system, and adjusting the pH value to 4.5-5.5;
Step II: oxidizing the mixed system to completely convert cuprous ions into copper ions to obtain first wastewater;
Step III: transferring the first wastewater to an ion exchange system to adsorb and remove free copper ions to obtain second wastewater; Wherein the ion exchange system comprises a plurality of series reaction columns filled with active resin, and the flow rate of the first wastewater in the reaction columns is controlled to be 8-10m3/h;
Step IV, transferring the second wastewater to an evaporation system for evaporation to obtain concentrated solution, cooling and crystallizing the concentrated solution, and performing solid-liquid separation treatment to obtain ammonium chloride.
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