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A technique using a membrane flow cell to determine average mass transfer coefficients and tortuosity factors in
L A García López1, M C Veiga, R Nogueira
1Chemical Engineering Laboratory, Faculty of Science, University of A Coruña, Spain.
Abstract:
Average mass transfer coefficients of an inert compound (LiCI) within denitrifying biofilms were monitored during biofilm growth in a membrane flow cell under different flow conditions, until the biofilm reached (pseudo-) steady state. Average effective diffusivities were found to increase with the decrease tortuosity factors of the biofilm matrix. The lowest tortuosity factor corresponded the highest liquid velocity.