Preparation and application of thin film membranes incorporated with nanocomposite for water treatment

Abstract

Membrane technology is an emerging technology frequently applied in water purification and can be a solution for dissolved organic, heavy metal and dissolved mono – divalent salts removal in water sources since membranes are designed to retain particles according to their pore diameter and other physical properties. This thesis demonstrates a better understanding of the fundamental aspects responsible for high contamination removal, modification of porous membrane and fouling development during filtration process. The fabricated membranes in this thesis can be divided to:- • During dead end ultrafiltration blend polyethersulfone /polyacrylonitrile (PES/PAN) membranes with different PAN percents (0.5, 1.0, 1.5, 2.0). PES –M5 (1% PAN addition) had the highest rejection of humic acid (92.47) with the best permeate flux (70 l/m2.h). So, membrane with 1% PAN showed very good properties as UF membranes, in the next parts 1.5% &2.0% are used as porous support layer for the interfacial polymerization for improvement of membrane