Abstract: The waste water of metallic ion, especially the heavy metal, can be a severe destruction to the environment. So we must take proper disposals to reach the level of waste discharge. Through investigating to some relevant literatures, in this thesis we take copper ion as an example, mainly study and present a method of disposing the heavy metal waste water by electrodialysis, and simply present other methods as well. The liquid flow in chamber, the concentration of raw materials, current intensity, the interference of Cu2+ and Ni2+and the effect of the mixture solutions for the transfer result and also the maximum transport quantity were studied. The result shows that, moderate liquid flow in chamber (80L/h), the material concentration of raw materials (concentration of Cu2+ is 0.15g/L) and moderate current intensity(1.5A) are beneficial to the result of transfer. The mixture solutions whose concentration is simulated to the factories’ real emission concentration can also be totally transferred; meanwhile, Ni2+ transfers faster than Cu2+. The maximum transport quantity of Cu2+ is much bigger than the recycling quantity of the factories’, so it’s possible to recycle Cu2+ and Ni2+ from the waste water by electrodialysis.
Keywords: Metal ion waste water; Copper; Nickel; Electrodialysis;Maximum transport quantity
