Yeoh, Yuan Xin and Mazrul Nizam, Abu Seman and Mohd Yusri, Mohd Yunus and Mohammad, Abdul Wahab and Mohd Hashim, Mohd Saad (2025) Influence of different polyether sulfone substrate of thin-film composite forward osmosis membrane on neodymium rejection. Journal of Water Process Engineering, 69 (106645). pp. 1-15. ISSN 2214-7144. (Published)
![[img]](http://umpir.ump.edu.my/style/images/fileicons/other.png) |
Pdf
Influence of different polyether sulfone substrate of thin-film composite forward osmosis membrane on neodymium rejection.pdf Restricted to Repository staff only Download (662kB) | Request a copy |
Abstract
Technology to treat rare earth element (REE) upstream and midstream wastewater especially acid mine drainage (AMD) is urged to be developed as it was proven current circular economy practice in downstream processes is environmentally unfriendly. This study applied forward osmosis (FO) to treat synthetic AMD containing neodymium (Nd) by using a thin-film composite (TFC) membrane as it is cheaper compared to other membrane technologies that require external pressure. Non-solvent induced phase separation (NIPS) was used to fabricate porous substrate prepared from different polyether sulfone (PES) concentrations (13 wt%, 15 wt%, 17 wt%,19 wt%) and 10 wt% PVP. Then, interfacial polymerization (IP) was done on the substrate for crosslinking of polyamide (PA) thin-film active layer. Intrinsic parameters of the fabricated TFC membranes were studied using a two-stage non-pressurized test. The occurrence of the electric double layer effect was proven in this study which was accountable for the Nd rejection together with the structure of the PA layer. TFC membrane prepared from 15 wt% PES showed the best Nd rejection efficiency with 98.28 % in ALFS orientation due to its high negative surface charge with the PA structure of leaves and nodules.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Thin-film composite membrane; Forward osmosis; Polyether sulfone; Rare earth element; Neodymium separation |
| Subjects: | T Technology > TP Chemical technology |
| Faculty/Division: | Faculty of Chemical and Process Engineering Technology Institute of Postgraduate Studies Centre for Sustainability of Mineral & Resource Recovery Technology (SMARRT) |
| Depositing User: | P. M. Dr. Mazrul Nizam Abu Seman |
| Date Deposited: | 02 Dec 2024 03:36 |
| Last Modified: | 02 Dec 2024 03:36 |
| URI: | http://umpir.ump.edu.my/id/eprint/42992 |
| Download Statistic: | View Download Statistics |
Actions (login required)
 |
View Item |