Electro Dialysis Reversal, EDR

ELECTRO DIALYSIS REVERSAL, EDR – WATER AND WASTE WATER RECYCLING TECHNOLOGY

Introduction Picture1
Electrodialysis reversal can successfully remove ions from water and wastewater by applying a direct current and reversing the polarity of electrodes periodically. The electric charge drives the ions penetrating anion or cation exchange membranes. EDR reduces conductivity and dissolved solids of bulk solution.

BenefitsPicture2
•High water recovery rate
•High desalination efficiency
•Easy process control of flow rate, voltage and current

Features
•Soften hard water without chemical addition
•Remove sodium chloride, calcium, magnesium, sulfate and nitrate
•Capable of treating influent with SDI 10 times higher than RO
•Flexible pre-treatment using normal, micro or ultra-filtration

Full-scale EDR system (2400 m3/d ) for river water
desalination

ApplicationPicture3
•Desalination of RO concentrate
•Cooling tower condensate
•Salty groundwater
•City water
•Wastewater

Patent
•TW 232772