Nanofiltration membrane cross‐linked by m‐phenylenediamine for dye removal from textile wastewater. (10th October 2018)

• Record Type: Journal Article
• Authors: Gunawan, Felicia Marcella; Mangindaan, Dave; Khoiruddin, K.; Wenten, I Gede
• Is Part Of: Polymers for advanced technologies. Volume 30:Number 2(2019)
• Page Start: 360
• Page End: 367
• Publication Date: 2018-10-10
• Subjects: cross‐linking -- dye removal -- membrane preparation -- nanofiltration -- textile wastewater; Polymers -- Periodicals; 668.9
• DOI: 10.1002/pat.4473
• Languages: English
• ISSNs: 1042-7147

Abstract

Abstract : In this work, m ‐phenylenediamine (MPD) is used to prepare cross‐linked polyetherimide (PEI)‐based nanofiltration (NF) membrane for treatment of dye containing wastewater. The effects of dope solution composition, cross‐linking time, and dye concentration on membrane performance are investigated. Results indicate that the rejection of dye is increased with the increase of acetone concentration in the dope solution, cross‐linking time, and dye concentration. Meanwhile, membrane flux showed the opposite trend. With the aid of SEM and FTIR analysis, the cross‐linking between MPD and PEI is confirmed. The cross‐linked membrane has thicker and dense selective layer compared to the unmodified membrane. The cross‐linked NF membrane (PEI: 15 wt%; acetone: 20 wt%; cross‐linking time: 10 minutes) showed good performance in filtration of synthetic dye wastewater (Reactive Red 120, 1500 ppm) with 98% dye rejection and 0.013 L m −2 hour −1 of flux at relatively low operating pressure (60 psi).