A NOVEL SOLID LIQUID SEPARATION TECHNIQUE: 'THE DYNAMIC CROSS-FLOW FILTER: IT'S ADVANTAGES AND BENEFITS DEMONSTATED WITH AN EXAMPLE PROCESS'

摘要

Cross-flow technology for separating substances with poor filtration properties are state of the art. With traditional cross-flow filtration the development of the clogging layer is prevented at the surface of the filter membranes by pumping the feed. When handling sensitive or highly viscous products, this method is not efficient or even not applicable. The pumping cross-flow filtration technologies would not be able to concentrate liquid to sludges, e.g. a fermentation broth to an extent where essentially no valuable liquid compound would remain in the retentate. Because the dynamic cross-flow filtration is able to concentrate the biomass of the fermentation broth close to 100% by volume, the efficiency of the separation and the yield of the valuable compound are higher than by any other cross-flow technology.