Modelling crossflow electro- and micro-filtrations

Experimental data from a tubular crossflow filter, operated with and without imposed d.c. electric fields, are presented. The drop-off of filtrate rate as the membrane fouls has been monitored for a variety of operating conditions. A simple mathematical model has been developed to interpret the experimental results; the model facilitates particle trajectory (and hence membrane fouling) calculations from a knowledge of the particle properties and suspension flow parameters.