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High Performance Mixed-Matrix Electrospun Membranes for Ammonium Removal from Wastewaters
| Content Provider | MDPI |
|---|---|
| Author | Chen, Shu-Ting Wickramasinghe, Sumith Qian, Xianghong |
| Copyright Year | 2021 |
| Description | Mixed-matrix electrospun membranes were developed to investigate ammonium removal from low ammonium concentration wastewaters for the first time. Particles derived from the inexpensive zeolite 13X were successfully incorporated into polyethersulfone (PES) matrices. The fabricated mixed-matrix electrospun membranes demonstrate high ammonium removal capacity reaching over 55 $mg/g_{zeolite}$, more than 2.5 times higher than the previously fabricated mixed-matrix membranes via non-solvent induced phase inversion. Moreover, the membranes fabricated exhibit high permeability and ease of regeneration. Over 90% of total ammonium nitrogen (TAN) can be removed from low TAN wastewaters such as aquaculture wastewaters. In addition to zeolite 13X, other zeolite particles including zeolite Y, zeolite 3A and 4A were also incorporated into the membrane matrix. The inexpensive zeolite 13X show the highest ammonium exchange capacity. Particle type, loading and the level of its dispersion all affect TAN removal capacity. |
| Starting Page | 440 |
| e-ISSN | 20770375 |
| DOI | 10.3390/membranes11060440 |
| Journal | Membranes |
| Issue Number | 6 |
| Volume Number | 11 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-06-11 |
| Access Restriction | Open |
| Subject Keyword | Membranes Water Science and Technology Ammonium Removal Wastewater Mixed-matrix Membranes Zeolite Electrospinning |
| Content Type | Text |
| Resource Type | Article |
