Abstract: A spacer element (1) is disclosed having an integral screen for use in filled cell electrodialysis. The spacer (1) has a continuous portion (2) impermeable to flow and a screen (3) which spans a centrally-located flow treatment region that contains active treatment material, such as ion exchange beads. The screen (3) may perform a structural function, allowing operation at elevated pressure, and may also define a minimum gap between adjacent membranes and enhance mixing along the flow path and at cell boundaries. The spacer element (1) may be configured to enhance hydraulic filling of the cells, and cell architecture is readily implemented in a wide range of useful flow path geometries utilizing the screen spacer element (1).

Abstract: A corrosion resistant electrode connector assembly suitable for use in electrodialysis cells is disclosed, in which a jacket of titanium pipe is closely and mechanically fitted over an electrically conducting pipe comprised, for example, of copper. The assembly is flattened, closed at one end, and drilled to receive a plurality of connecting bolts. In use, an electrical conductor cable is attached to the assembly at the open end and the connector assembly securely bolted to an electrode.