sarah pourjafar - Nanobiotechnology Research Centre٫ Faculty of Chemical Engineering, Babol University of Technology٫Babo٫l Iran
ahmad rahimpour - Nanobiotechnology Research Centre٫ Faculty of Chemical Engineering, Babol University of Technology٫Babo٫l Iran
mohsen jahanshahi - Chemical Engineering Department, Babol Noshiravani University of Technology,PO.Box ۴۸۴,Babol, Iran

This study has applied the L16 orthogonal array of the Taguchi method to determine the optimal combination of three basic controlling material (PVA (poly-vinyl alcohol),Gluteraldehyde,TiO2 nanoparticles) concentration of synthesized PVA/PES composite membrane. PES ultrafiltrationmembrane was modified with so-called materials via dip-coating method .Taguchi approach was employed for ion rejection optimization. The optimum conditions were found as the second level of PVA, first level of Glu and fourth level of TiO2. surcace analysis of modified and virginmembranes were conducted with SEM (scanning electron microscopy) and contact angle measurements

Nanofiltration, Membrane, Modification, PVA, TiO2 nanoparticles, Taguchi method