STABILITY OF AN ELECTRODIALYSIS SYSTEM CHANNEL

Stability of mass electrotransfer in an electrodialysis system channel is considered from the viewpoint of its applicability in systems desi gned for purifying dilute working media or concentrating substances. T he possibilities are discussed of a synergistic approach to studying t he stability of multicomponent systems in which transfer is realized t hrough hydrodynamic flows, diffusion, or migration. The mathematical m odel of an electrochemical system includes equations of ion transport with variable thermal properties, the Poisson equation that relates th e potential and the electrical charge density, and the corresponding b oundary conditions. The dissipation function, which reveals the mechan isms responsible for maintaining the system stability is analyzed by t he Prigogine-Glansdorff theory.