posted on 2009-09-10, 11:20authored bySteve Tarleton, Richard J. Wakeman
Results from an experimental study of field assisted crossflow microfiltration are presented. It was
found that both electric and ultrasonic fields, either in isolation or in combination, can reduce
membrane fouling by an amount dependent on the applied field strengths, acoustic frequency,
suspension concentration, liquid viscosity, particle size and particle surface charge. Synergistic
effects were observed when the fields were applied simultaneously. When force fields are used in
microfiltration lower crossflow velocities can be employed. This implies that pumping costs, heat
transfer in recirculation loops and the degradation of shear sensitive streams can be substantially
reduced.
History
School
Aeronautical, Automotive, Chemical and Materials Engineering
Department
Chemical Engineering
Citation
TARLETON, E.S. and WAKEMAN, R.J., 1992. Electro-acoustic crossflow microfiltration. Filtration & Separation, 29 (5), pp. 425-432.