Abstract
An easy technique, consisting in injecting air into the liquid stream, is proposed to enhance the permeate flux in crossflow filtration of a model fluid (i.e a bentonite suspension). The injected air promotes turbulence and increases the superficial crossflow velocity that leads to a regular disturbance of the boundary layer. A systematic study of different two-phase configurations points up that the slug flow seems the most appropriate regime. The resulting permeate rate is increased up to 140%, in comparison with the usual filtration processes.
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Mercier, M., Fonade, C. & Lafforgue-Delorme, C. Influence of the flow regime on the efficiency of a gas-liquid two-phase medium filtration. Biotechnol Tech 9, 853–858 (1995). https://doi.org/10.1007/BF00158535
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DOI: https://doi.org/10.1007/BF00158535