Electrodialysis desalination technology

About Electrodialysis desalination technology

Electrodriven membrane separation equipment is a physical and chemical process that migrates ions from one part of water to another part of water by using the selective permeability of electrodriven membrane under the action of external direct current electric field. The electrodriven membrane separation desalinator uses the electrodialysis process in the multi-layer compartment to achieve the purpose of desalting water.

The electric driven membrane separator consists of a separator, an electric driven membrane, an electrode, a clamping device and other main components. The electrically driven membrane has selective permeability to ions with different charges. The positive film only allows the passage of cations and prevents the passage of anions. The negative film only allows anions to pass through, preventing the passage of cations. Under the action of the external direct current electric field, the ions in water are transferred in a directional manner. Because the electrodriven membrane separator is composed of multi-layer compartments, the anions and ions in the light chamber migrate to the adjacent concentration chamber, so that the brine is desalted.

As a pre-desalting equipment, the electric driven separator can be applied to raw water with salt content of 500-4000mg/L, which has strong practicability and economy. Single water production 0.2-16T/H, desalting rate 75-97%. Widely used in chemical industry, metallurgy, food, biology, pharmaceutical industrial sewage treatment and other fields.