Cleaning of filters

Details Cleaning of filters Cleaning of filters

B - Operations, Transporting

01

D

182/13.2

B01D 65/02 (2006.01) B01D 29/62 (2006.01)

Patent

CA 1275260

ABSTRACT A method of cleaning a filter (10) made of hollow fibres having a pore size in the range 5 micron to 0.01 micron utilizes a gas back-wash. Feedstock to the filter is applied to the outside of the fibres and permeate (11) is drawn off through the fibre lumens. The gaseous back-wash medium (13) is introduced in to the fibre lumens. The gas is applied at a pressure sufficient to overcome the effects of the surface tension of the continuous phase of the feedstock within the pores of the membrane.

508260

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