Pure water supply system for dialysis devices

The electrochemical ozone generator (10) comprise an anode, a cathode and an interposed full-surface, cation-conductive, chemically stable ozone membrane as a solid electrolyte in a cell. The membrane, anode and a cathode are conductively connected to each other for forming flow channels for water. The flow channels are separated from each other as anode and cathode compartments. The membrane extends between the anode and the cathode in the form of a saw-tooth, trapezoidal, rectangular or sinusoidal shape. The electrochemical ozone generator (10) comprise an anode, a cathode and an interposed full-surface, cation-conductive, chemically stable ozone membrane as a solid electrolyte in a cell. The membrane, anode and a cathode are conductively connected to each other for forming flow channels for water. The flow channels are separated from each other as anode and cathode compartments. The membrane extends between the anode and the cathode in the form of a saw-tooth, trapezoidal, rectangular or sinusoidal shape. A curved shape of the membrane is caused by a support such as a mesh or a unidirectional fabric applied to the membrane. The membrane is a self-supporting shaped membrane. The ozone generator further comprises a multilayer structure having the cells, which are stacked side by side. The cell is constructed as a spiral wound module with an outer tube and an inner tube. The spiral wound module comprises a hydrogen-collecting container.