electrodialysis
Quick Summary
Electrodialysis is a process that accelerates dialysis, which is the separation of suspended colloidal particles from dissolved ions or molecules. This separation occurs due to their differing rates of diffusion through semipermeable membranes. In electrodialysis, an electric field is applied across electrodes adjacent to the membranes, speeding up the movement of charged particles.12
This method is used in desalination, where electrical potential drives positive and negative ions of dissolved salts through separate ion-exchange membranes, leaving fresh water in between. While dialysis itself is a slow process, electrodialysis offers a more rapid separation.342
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- separation and purificationBarrier separations
In electrodialysis, an electrical field accelerates the migration.
Read MoreIn electrodialysis, an electrical field accelerates the migration.
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…applying an electric field (electrodialysis). For medical applications, see also artificial organ.
Read More…applying an electric field (electrodialysis). For medical applications, see also artificial organ.
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desalinationDesalination processesElectrodialysis uses electrical potential to drive the positive and negative ions of dissolved salts through separate semipermeable synthetic membrane filters. This process leaves fresh water between the filters. In reverse osmosis salt water is forced against the membranes under high pressure; fresh water passes through…
Read MoreElectrodialysis uses electrical potential to drive the positive and negative ions of dissolved salts through separate semipermeable synthetic membrane filters. This process leaves fresh water between the filters. In reverse osmosis salt water is forced against the membranes under high pressure; fresh water passes through…
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