The influence of post-treatment (solvent exchange) on the perfomance and structure of nanofiltration membrane

Abstract

The aim of this study was to investigate the influence of post-treatment (solvent exchange) towards performance and structure of nanofiltration membrane. Asymmetric membranes were developed by dry/wet phase inversion method from casting solution contains 18% polyethersulfone (PES) as polymer, 75% N-methyl-2- pyrrolidone (NMP) as solvent and 7% polyvinylpyrrolidone (PVP) as additive.