Electrodeionization (Electrodeionization) referred to EDI, an ion-exchange technology, ion-exchange membrane and ion migration technology combines pure water manufacturing technology. A high-tech green technology. EDI with continuous water purification equipment, no acid regeneration and unattended, etc., have been gradually replaced by a mixed bed polishing equipment used in the preparation of the water system. Environmental characteristics of this advanced technology, simple operation uses, more and more recognized by people, but also more and more widely popularized in medicine, electronics, electrical, chemical and other industries. Features: 1. without acid regeneration: In the mixed bed resin acid regeneration need to use chemicals, and EDI processing and eliminates the heavy work of these harmful substances. Protect the environment. 2. Continuous simple: In the mixed bed regeneration and due to changes in water quality every time, so that the operation becomes complicated, and water production process EDI is stable continuous product water quality is constant, no complicated operating procedures, operations greatly simplified. 3. Reduce the installation requirements: EDI system compared with the fairly treated water mixed bed, there is less volume, which uses modular structure, can be flexibly configured according to the height and cellar space. The modular design makes EDI work in the production of energy and easy maintenance