09/09/2026
Electrodialysis (ED) is an electrochemical membrane-based process which has been adopted in a variety of applications such as water treatment, bioprocessing, pharmaceuticals and food industries. This process relies on the application of an electric current to promote the migration of ionic species from diluate channels into concentrate channels, thanks to a series of alternating Ion Exchange Membranes (IEMs).
Typical ED stacks comprise tens to hundreds repeating cell pairs, where each cell pair consists of two membranes (one Cation Exchange Membrane, ‘CEM’, and one Anion Exchange Membrane. ‘AEM’), one diluate channel and one concentrate channel. In its basic configuration, the ED process has the feed solution flow co-currently in the diluate and the concentrate channels.
Head over to our blog to discover more about electrodialysis and its uses:
https://coanda.ca/blog/electrodialysis/