EDI (Electrodeionization), also known as continuous electro-deionization technology, scientifically integrates electrodialysis technology and ion exchange technology. Through the selective permeation of cations and anions by cation and anion membranes and the exchange of ions in water by ion exchange resins, directional migration of ions in water is achieved under the action of electric field, thereby achieving deep purification and desalination of water.

The EDI pure water special resin produced by Jiangsu Kingshan New Materials Co., Ltd. has strong exchange capacity, good working effect, practicality and low cost. It is often used in EDI pure water equipment and can produce ultrapure water with a resistivity of up to 16-18MΩ·CM. It has been widely used in various EDI pure water processes and has been well received by domestic and foreign customers.