The high salt concentration of wastewater will bring some difficulties to the biological treatment. Two biological treatment is one of the common methods of wastewater treatment. Chemical wastewater, such as fuel, pesticides, pharmaceutical intermediates, such as high salinity wastewater treatment to bring a certain degree of difficulty. This kind of wastewater has high salt concentration and serious pollution.
 

   Electrochemical deionization method is of revolutionary significance to water treatment technology. It is clever geoelectric dialysis and particle exchange technology combined with high pressure water, two electrodes of charged particles move with particle exchange resin and selective membrane to accelerate shift ion removal, so as to achieve the purpose of water purification.