Microfiltration Subject

Other methods have also been adopted to produce inorganic membranes with essentially straight pores. Witte [1988] subjected a metal foil such as nickel to a two-step photolithographic procedure. The pore density of the final membrane exceeds 150,(X)0/cm and the pore sizes form fall under the microfiltration and ultrafiltration ranges. Although both flat and cylindrical shapes can be handled, the flat shape is preferred. 

The investigation of Dean vortices and their application to membrane separation processes has been the subject of several experimental and theoretical studies concerning the improvement of microfiltration (ME), ultrafiltration (UF), and nanofiltration (NF),... 

Often, an object of equal interest is the solvent component itself and its permeation. Considered as a pure component or mixture of constant composition, the solvent becomes subject to Darcy s law for flow through porous media. The notable solvent example is water, which most usually pertains to the separation operations of dialysis and reverse osmosis. Beyond this, water generally functions as the particulate-carrier in microfiltration and ultrafiltration. 

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