MEMBRANE TECHNOLOGY WITH SPECIAL REFERENCE TO FILTRATION AND REVERSE-OSMOSIS

Membrane based separation technology (MBST) is a selective permeation technology which is practicable and economically attractive. It refers to pressure driven separation of components of a fluid mixture by sel ective permeation of the permeate (solvent with smaller molecule size) from the retentate (solute with larger molecule size) through a semip ermeable membrane. The present paper describes various membrane operat ion techniques with special reference to Ultra Filtration (UF) and rev erse osmosis (RO). Their vast applications in Industry are also discus sed.