An Experimental Investigation of the Treatment of Complexed Copper-containing Wastewater by Ion-exchange

An negative ion-exchange resin is used in this study to investigate its treatment of the Cu-EDTA-complex wastewater fro m rare earth separating process by ion-exchange.The experimental results show that the Cu-EDTA and free EDTA can be concentrated and recovered by the method of this study, and it is expected to be reused in the process of rare earth separating.