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The process combines ion exchange, membrane separation, and an electric field.
Under direct current, ions migrate through ion-exchange membranes and are removed from the water stream, while the resin is continuously regenerated without chemicals.
Systems include:
• EDI modules (resin-filled compartments)
• anion and cation exchange membranes
• electrodes (anode/cathode)
• DC power supply
• piping and control system
Modules can be scaled according to required capacity.
• power generation (boiler feed water)
• pharmaceutical industry
• electronics and microelectronics
• laboratories and ultrapure water production
• no chemical regeneration
• continuous operation
• stable water quality
• low operating costs
• environmentally friendly process
Main parameters:
• water quality — up to 18 MΩ·cm (ultrapure)
• capacity — configuration-dependent
• demineralization level — ultrapure water
• chemical-free operation
• integration with RO systems
