Diffusion dialysis was an ion-exchange membrane separation process driven by concentration gradient, and can be applied for separation and purification of organic or inorgamc electrolyte, such as seawater, brackish water desalination, etc. In the area of environmental engineering, it was mainly used for treatment and recycling of wastewater containing acid or alkali. In this article, we discussed the basic concept and principle of diffusion dialysis method, common equipments and devices for treatment of the industrial wastewater, and main facto...
