EDI, Electrodeionization Water Treatment Plant or CDI, Continuous Electrodeionization is a process which uses mixed ion exchangeable resign to absorb positive ion and negative ion in water, as well as removed by positive ion exchangeable membrane and negative ion exchangeable membrane under direct current. Also, this new technology can replace traditional DI devices which can generate resistivity up to 18 MIA cm ultra-pure water.

Using Reverse Osmosis technology for first-time desalination and EDI technology for second-time desalination can completely avoid acid and alkali reclamation. Thus EDI technology brings a revolutionary development for water treatment technology.