Principle and definitions
Electrodialysis

Originally, in the 1930s, the idea was to use an electric current to increase the material transfer of charged species compared with that obtained by simple dialysis [1] . Today, electrodialysis uses specific membranes, arranged alternately orthogonally to an electric field. The reactor consists of a stack of membranes, often referred to as a "stack", itself composed of a repetition of identical "elementary motifs", mounted in a "filter-press" type arrangement.