Exploring and Exploiting the Effect of Solvent Treatment in Membrane Separations

• DOI: 10.1021/acsami.7b01879
• Publication Date: 2017-03-09T14:13:31Z
• Authors: Mayamin Razali; Christos Didaskalou; Jeong F. Kim; Masoud Babaei; Enrico Drioli; Young Moo Lee; Gyorgy Szekely
• Keywords: Nanofiltration

It is well-known that solvent treatment and preconditioning play an important role in rejection flux performance of membranes due to solvent-induced swelling adsorption. Investigations into the effect are scarce application specific, were limited a few solvents only. This study reveals trend based on polarity systematic investigation with aim harness such for intensification membrane processes. Nine indices ranging from 0.1 5.8 (hexane acetonitrile) used as process commercial Borsig GMT-oNF-2, Evonik Duramem 300, emerging tailor-made polybenzimidazole membranes. TGA-GCMS, HS-GC-FID, NMR techniques employed better understand polymer matrix In this work, apart treatment's direct performance, subsequent indirect ultimate separation was observed. Consequently, pharmaceutical case employing chlorhexidine disinfectant antiseptic demonstrate nanofiltration-based purification. shown acetone resulted 25% increase product recovery at 99% impurity removal. The cost negligible terms consumption, mass intensity, processing time.