Membrane-Separation Scholarly Journal

Membrane separations find many applications because they need many advantages like cost effectiveness, easy operation and a high pre-concentration factor with a high degree of selectivity. The pre-concentration is beneficial for determining the metal ions present at concentrations much less than the detection limit of a specific instrument. Pre-concentration related to selectivity helps eliminate interference of matrix elements. Membrane separations also are used for treatment of huge volumes of low-level radioactive effluents generated at the varied stages of fuel reprocessing within the nuclear industry, wherein significant volume reduction is achieved by membrane separation before processing by conventional methods.All membrane separation processes are amid a phenomenon called ‘concentration polarization’ during which the composition at the feed–membrane interface differs from the composition within the bulk of the feed mixture. This gradient in composition is generated by the separation performed by the membrane and, as such, can't be avoided. However, it's important to attenuate the consequences of concentration polarization because the gradient in composition reduces the separation performance of the membrane and increases the potential for membrane fouling. Therefore, minimizing concentration polarization is one among the foremost important objectives in designing and engineering membrane separation systems.    

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