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External mass transfer in a biological film reactor
Author(s) -
La Motta Enrique J.
Publication year - 1976
Publication title -
biotechnology and bioengineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.136
H-Index - 189
eISSN - 1097-0290
pISSN - 0006-3592
DOI - 10.1002/bit.260181004
Subject(s) - mass transfer , mass transfer coefficient , turbulence , mechanics , kinetic energy , flow velocity , substrate (aquarium) , flow (mathematics) , thermodynamics , materials science , chemistry , physics , classical mechanics , biology , ecology
A method for calculating the mass transfer coefficient in a biological film system, under turbulent flow conditions, is presented. It is experimentally found that fluid velocity has a positive effect on the rate of substrate utilization when the system is operated in other than the kinetic regime. A correlation is developed which indicates a dependence of the mass transfer coefficient on the fluid velocity raised to the 0.7 power.