EDI (Electrodeionization), also known as continuous electric desalting technology, is a pure water treatment technology that combines ion exchange technology, ion exchange membrane technology and ion electromigration technology. Through EDI electric desalting technology, the equipment can deeply purify and desalt, and continuously produce high-quality ultra pure water. The equipment has the advantages of advanced technology, compact structure, simple operation, etc. It is a green revolution in water treatment technology.