关键词: 电泳膜接触器, 电渗析, 超滤膜

Abstract: The electrophoretic membrane contactor (EMC) is a novel membrane separation technology in which porous membranes are stacked or replaced partial ion exchange membranes by porous membranes in conventional electrodialysis cell. The porous membranes act as the contact interface between the two liquid streams where the mass transfer takes place. The voltage，applied in a direction perpendicular to the flows，is the only driving force. This review paper described the principles of EMC. Cell configuration and operation mode of EMC were briefly discussed. The influences of important operation factors，such as pH of solution and electric field strength，polymer materials and molecular weight cutoff of porous membranes on the mass transfer of EMC process were analyzed in detail. Pollution status of the porous membranes during the operation of EMC was explored and the application potential of EMC in separation and purification of biomacromolecules was discussed. EMC further extends the application field of electrodialysis by using of porous membrane，which could be used in separation and purification of biomolecules greater than 500 Da. Membrane fouling could be effectively minimized due to external electric field.

Key words: electrophoretic membrane contactor, electrodialysis, ultra?ltration membranes