Electrodialysis And Electrodeionization Spacers

Abstract: An improved spacer for use in electrodialysis and electrodeionization stacks can provide close contact between the spacer mesh and its adjacent ion exchange membranes, reducing the water flow cross-section through the cell. This in turn can lead to higher flow velocities and increased flow turbulence between ion exchange membranes, thereby reducing membrane polarization effects and increasing the limiting current density. The improved spacer can be combined with a voluminous spacer gasket for receiving a volume of electroactive media, the voluminous spacer gasket comprising an outer gasket edge having an open central area for receiving the electroactive media, and holes on the top and bottom of the outer gasket edge whose dimensions match the holes on the spacer.

Patent Information

Applicants

Inventors

Specification

Documents

Application Documents