| 摘要 |
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 ).
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