Experiments using electricity to prevent fouling in membrane filtration

Experimental data obtained from a tubular crossflow filter are presented. The effects of operating conditions, including feed concentration, crossflow and throughflow velocities, and imposed electric fields are discussed with reference to the data. A method of reducing the consumption of electrical power based on some further results is noted. Permeate flux can be considerably enhanced using a d.c. electric field, and this is attributed to reduced particulate fouling of the membrane.