Influence of the flow regime on the efficiency of a gas-liquid two-phase medium filtration

Autor: C. Fonade, M. Mercier, C. Lafforgue-Delorme
Rok vydání: 1995
Předmět:
Zdroj: Biotechnology Techniques. 9:853-858
ISSN: 1573-6784
0951-208X
DOI: 10.1007/bf00158535
Popis: 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.
Databáze: OpenAIRE