What is the Difference Between EDI and CEDI?

The short answer is nothing!


L'électrodéionisation (EDI) et l'électrodéionisation en continu (CEDI) signifient la même chose. De par sa nature même, l'électrodéionisation est un processus continu, donc le Continu dans CEDI est redondant.

CEDI and CDI are just marketing terms.

Although the different stack/module manufacturers have different designs and configurations, the fundamental operational principals are the same. All EDI stacks/modules use electrical current to continuously regenerate resin within the stack/module. When water comes into contact with the electrical current, it breaks apart to form 1 H+ molecule and 1 OH- molecule. These molecules are the active ingredients required to regenerate the anion and cation resin within the EDI stack/module. Therefore, to ensure the highest quality of water the EDI stack/module needs to have electrical current applied across it continuously when it is in operation. In addition to regenerating the resin within the stack/module, the electrical current also allows for the migration of the contaminant ions out of the product stream and into the concentrate stream.

Remarque: N'appliquez pas de courant électrique à la pile/module lorsqu'elle n'est pas traversée par de l'eau.

in FAQ
What are the Differences Between Coagulation and Flocculation?
In simple terms, coagulation/flocculation are physico-chemical processes used to increase the mass of suspended solids and dissolved substances. By doing so, these particles present in the water can be more easily extracted