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Product Description
What is Electrodialysis (ED)?
The technology of purifying and separating substances by selective membranes and electrodes is called Electrodialysis (ED).
The method of separating different solute particles (such as ions) using the selective permeability of a semipermeable membrane is called dialysis. When dialysis is performed under the action of an electric field, the phenomenon in which charged solute particles (such as ions) in the solution migrate through the membrane is called electrodialysis.
At the beginning, it was used for seawater desalination and is now widely used in chemical industry, light industry, metallurgy, papermaking, medicine Industry, especially the preparation of pure water and the treatment of three wastes in environmental protection are the most important, such as acid and alkali recovery, electroplating waste liquid treatment and recovery of useful substances from industrial wastewater.
What is bipolar membrane electrodialysis?
The electrodialysis bipolar membrane process (BMED) is based on the unique property of bipolar membrane (BM) - electro-dissociation of water. BM effectively divides water into H+ and OH− under the influence of the applied electric field.
Bipolar electrodialysis stack consists of bipolar and monopolar (cation/anion-exchange) membranes, which convert waste salts into acids and bases.
It's used for the recovery of acid and caustic from waste salts for local use. It is an environmentally friendly technology that reduces operating costs for the wastewater treatment plant.
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