... membrane on the top and a flat plate at the bottom, between which a net-like material is placed to provide space for the permeate removal, and on the other side of the flat plate,another sheet ... satisfactory. Nevertheless, these models can help to understand the operation and performance links. The pore model is appl ied to predict the permeate flux in the pressurecontrol region, under the ... In the cross-flow mode, one stream of the feed flows tangentially to the mem-brane surface, and there are two streams leaving the membrane module withone for the retentate flow and the other...