Operation principle of EDI device

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　　The EDI device is a revolutionary water treatment technology that cleverly combines electrodialysis and ion exchange techniques to produce high-quality pure water continuously, without the need for acids or bases. It features advanced technology, simple operation, and excellent environmental benefits; it represents a new direction in the industry and can be widely applied in sectors such as electricity, pharmaceuticals, chemicals, and electronics. Its emergence represents a revolutionary advancement in water treatment technology, marking the full entry of the water treatment industry into the category of green industries. 　　EDI unit process: 1. Raw water is supplied to the ultra-pure water EDI system; the main portion flows into the resin/membrane, while another portion flows along the outside of the membrane sheet to wash away the ions that pass through the membrane. 　　2. Resins retain dissolved ions in water. 　　3. Under the action of the electrodes, the trapped ions move toward the positive electrode for anions, and toward the negative electrode for cations. 　　4. Cations pass through the cation membrane and are discharged outside the resin/membrane. 　　5. Anions pass through the anion membrane and are discharged outside the resin/membrane. 　　6. The concentrated ions are discharged from the wastewater flow path. 　　7. Ion-free water flows out from within the resin/membrane.