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Electrodialysis desalination device

Desalination of seawater/brackish water: brackish water with a salt content of up to 60g/L can be desalinated into drinking water. Industrial wastewater treatment: desalination and reuse of circulating cooling wastewater, with a desalination rate of 77.5% in the refining wastewater demonstration project. Reverse osmosis concentrated water treatment: further concentrate RO concentrated water to reduce evaporation load. Material separation and purification: dairy product demineralization, sweetener desalination, glycerol desalination. Food/pharmaceutical pure water: low-pressure boiler soft water, pharmaceutical purified water.

National Service Hotline：400-611-6861
Product Introduction

The electrodialysis desalination device utilizes molecular weight differences to achieve phase free directional separation, which is significantly energy-saving compared to traditional thermal concentration. It operates at room temperature to protect thermosensitive components and is the core technology for material purification, wastewater reduction, and resource recovery.

Under the action of an external DC electric field, cations migrate towards the cathode and pass through the cation exchange membrane, while anions migrate towards the anode and pass through the anion exchange membrane. The alternating arrangement of anion/cation exchange membranes separates the device into a fresh water chamber and a concentrated water chamber: ions in the fresh water chamber are removed to achieve desalination, while ions are received in the concentrated water chamber to achieve concentration.


Technical Advantage
low energy consumption
No phase change process, 0.5-2.5 kWh per ton of water and electricity consumption, only used for ion migration, energy consumption is proportional to the salt content of the influent.
flexible design
Customization can be achieved through stage and section combinations, as well as series and parallel connections, based on processing capacity and desalination rate.
Constant effluent quality
PLC fully automatic control, stable operation, achieving automated operation.
Equipment Selection

The requirement for exceeding the limit of indicators shall be handled accordingly

TDS 1000-60000 mg/L (optimal range) Use RO for low levels and connect evaporation for high levels

SS ＜ 5 mg/L with precision filter

Hardness<200 mg/L with softener or EDR

COD ＜ 50 mg/L with activated carbon/ultrafiltration

PH 2-10 acid-base regulation

Temperature 5-40 ℃ heat exchanger


Friendship Link
Huapu Environmental Protection Huapu Water Treatment Equipment