ZH
Electrodeionization (EDI)
Description
EDI combines ion exchange resins, membranes, and electric fields to produce ultra-pure water without chemical regeneration. It achieves continuous desalination under the influence of a direct current electric field.
Process
- Feedwater is pretreated to remove large particles.
- Ions are separated and removed via ion exchange and migration under a DC
- Ultra-pure water is collected continuously.
Applications
- Pharmaceutical water systems.
- Semiconductor and electronics manufacturing.
Key Advantages
Produces high-purity water (1–18.25 MΩ·cm).
Environmentally friendly, with no chemical regeneration.
Compact，energy-efficient design and simple operation.