A simple kinetic relationship is proposed to model the rate of removal of bacterial cells from solid surface by a shearing force. The theory is compared to experimentally obtained data for the removal of B. cereus cells from glass capillaries, the shear being imparted by a the flow of medium through the capillary. The critical shear stress required to sterilize the capillary wall is obtained experimentally for a number of industrial contaminant bacteria. The effect of settling time on critical shear stress is also investigated.
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Powell et al. (1982) studied this question.
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