The core feature of EDI technology lies in the synergistic effect of a DC electric field, ion exchange membrane, and resin. While removing ions from water, it continuously regenerates the ion exchange resin through hydrogen and hydroxide ions generated by water ionization, eliminating the need for chemical regeneration using acids and alkalis.
This brings several advantages: environmental safety, with no harmful chemical waste (such as acid/alkali regeneration wastewater) discharged, making it a green and environmentally friendly process; continuous and stable operation, with a continuous water production process and stable water quality, enabling high automation and even unattended operation; low operating costs, saving on acid/alkali consumption, regeneration water, wastewater treatment costs, and significant labor costs; high-quality produced water, stably producing ultrapure water with resistivity as high as 15-18 MΩ·cm, and even up to 18.25 MΩ·cm; small footprint, flexible installation, modular design, compact structure, and easy layout according to site conditions; and simple maintenance, with modular design facilitating maintenance, and some products supporting independent maintenance of individual modules without affecting the overall system operation. Furthermore, EDI systems typically boast high recovery rates (up to 90%-95%), and the concentrate can be reused, further enhancing water resource utilization.
