EDI apparatus belongs polishing water system, and more generally with the reverse osmosis (RO) with the use of the composition of pretreatment, reverse osmosis, EDI ultrapure water treatment system unit, which replaces the traditional water treatment process of mixed ion exchange equipment. EDI means the water requirements for the resistivity of 0.025-0.5MΩ · cm, reverse osmosis unit fully meet the requirements. EDI apparatus can produce high resistivity 18MΩ · cm or more ultra-pure water. Guangzhou Tianshui EDI ultra-pure water equipment and technology introduction: Depending on the water quality of the source using a different process. Usually after a reverse osmosis water treatment systems, produced water conductivity <10μS / cm, after the reverse osmosis system product water conductivity <5μS / cm or less, in the preparation of the reverse osmosis system combined with ultra-EDI equipment water to a resistivity of 18 megohms (conductivity = 1 / resistivity). First, the technical process analysis: 1, RO reverse osmosis + EDI ion exchange system combines mature technology, reliable, easy operation and maintenance; 2, compared with the traditional process with a stable advantage (ion exchange regeneration cycle greatly extended ), compared with the latest technology without regeneration, supplies; 3, pre-RO reverse osmosis technology advanced and reliable. EDI and the use of sophisticated technology to make the water tends to be more stable and safe water; Second, the system processes the pretreatment system - reverse osmosis system - intermediate tanks - crude mixed bed - fine mixed bed - pure water - pure water pump - UV disinfection - polishing mixed bed - Ultrafilter - Water target (≥18MΩ.CM) (traditional crafts) Guangzhou Tianshui EDI ultra-pure water equipment handling technical features: equipment operation and stability, modular design, electrical control system uses sophisticated programmable PLC logic control, Siemens, Mitsubishi and well-known brands converter, using the PPI, MPI, Profibus, CClink other network control equipment to ensure maximum safety and reliability. Welding used in all welding crow's feet, good sealing effect, there is no leak dripping. Process is a combination of ultrafiltration, microfiltration, reverse osmosis, EDI, such as different organic membrane processes together to achieve efficient removal of contaminants and the purpose of a water depth of desalination technology. After the entire membrane water treatment can directly meet the boiler feed water, process water, electronic ultra-pure water, water reuse, water recycling and other requirements of the process of key technology EDI system electrodialysis (ED) and ion exchange technology (DI) combine achieve continuous desalination, operation and maintenance simple, no acid emissions. IPC control system programmable control, automatic start and stop, dosing and flushing, automatic monitoring of various operating parameters. Guangzhou Tianshui EDI ultra-pure water equipment models: 0.5T / H, 1T / H, 2T / H, 3T / H, 5T / H, 6T / H, 10 T / H, 30 T / H, 50 T / H, model complete, welcomed the consultation, order.