| Abstract: | Microporous filters media for cake filtration. Improved knowledge about filtration conditions, capillary phenomena in filter cakes and in filter media, as well as the properties of membranes permit the use of microporous membranes in cake-forming filtration. This allows removal of moisture without passage of gas and yields a particle-free filtrate. Apart from metallic and ceramic membranes, polymeric membranes prove highly suitable as microporous filter media since they permit utilization of the entire range of filter equipment. The present article considers first the fundamentals of cake-forming filtration, then surveys the various membrane systems, and finally discusses process-engineering aspects of filtration with microporous filter media. |
