Electrodialysis Reversal system

Separation of ions and water salts using direct current and ion-exchange membranes; a low-energy option for desalination of brackish water and industrial applications.

EDR | Electro Dialysis Reversal

Introduction to the Electrodialysis Reversal System

The EDR system separates ions and salts from water using DC power flow and anionic and cationic membranes. The device is specifically designed according to the quality of the incoming water and the project's objective. Periodic changes in the flow direction help control scaling and maintain membrane performance, and in many brackish waters, it reduces energy consumption and wastewater discharge compared to conventional options.

Applications and Key Benefits

System applications

Supply of industrial water for boilers, cooling towers, and process systems
Providing the water required for pharmaceutical and hygiene industries
Desalination of brackish water for drinking, agriculture, and sanitary uses
Providing water for the oil, gas, petrochemical, and power plant industries
Water supply for food, beverage, and cosmetic industries
Water supply for livestock, aquaculture, and poultry units

Technical and operational benefits

Water desalination efficiency up to about 90 percent, depending on feed quality
Reduction of dye production and reduction of wastewater
Reducing energy consumption in the water desalination process
Reduction of equipment depreciation
Lower price and operational costs compared to the RO method under suitable conditions
Production of fresh water at a competitive cost