Please use this identifier to cite or link to this item:
https://doi.org/10.3390/nano10010180
DC Field | Value | |
---|---|---|
dc.title | Enhanced degradation of sulfamethoxazole (SMX) in toilet wastewater by photo-fenton reactive membrane filtration | |
dc.contributor.author | Sun, S. | |
dc.contributor.author | Yao, H. | |
dc.contributor.author | Li, X. | |
dc.contributor.author | Deng, S. | |
dc.contributor.author | Zhao, S. | |
dc.contributor.author | Zhang, W. | |
dc.date.accessioned | 2021-08-10T03:08:01Z | |
dc.date.available | 2021-08-10T03:08:01Z | |
dc.date.issued | 2020 | |
dc.identifier.citation | Sun, S., Yao, H., Li, X., Deng, S., Zhao, S., Zhang, W. (2020). Enhanced degradation of sulfamethoxazole (SMX) in toilet wastewater by photo-fenton reactive membrane filtration. Nanomaterials 10 (1) : 180. ScholarBank@NUS Repository. https://doi.org/10.3390/nano10010180 | |
dc.identifier.issn | 2079-4991 | |
dc.identifier.uri | https://scholarbank.nus.edu.sg/handle/10635/196258 | |
dc.description.abstract | Pharmaceutical residuals are increasingly detected in natural waters, which made great threat to the health of the public. This study evaluated the utility of the photo-Fenton ceramic membrane filtration toward the removal and degradation of sulfamethoxazole (SMX) as a model recalcitrant micropollutant. The photo-Fenton catalyst Goethite (?-FeOOH) was coated on planar ceramic membranes as we reported previously. The removal of SMX in both simulated and real toilet wastewater were assessed by filtering the feed solutions with/without H2O2 and UV irradiation. The SMX degradation rate reached 87% and 92% respectively in the presence of UV/H2O2 for the original toilet wastewater (0.8 ± 0.05 ppb) and toilet wastewater with a spiked SMX concentration of 100 ppb. The mineralization and degradation by-products were both assessed under different degradation conditions to achieve deeper insight into the degradation mechanisms during this photo-Fenton reactive membrane filtration. Results showed that a negligible removal rate (e.g., 3%) of SMX was obtained when only filtering the feed solution through uncoated or catalyst-coated membranes. However, the removal rates of SMX were significantly increased to 67% (no H2O2) and 90% (with H2O2) under UV irradiation, respectively, confirming that photo-Fenton reactions played the key role in the degradation/mineralization process. The highest apparent quantum yield (AQY) reached up to approximately 27% when the H2O2 was 10 mmol·L?1 and UV254 intensity was 100 µW·cm?2. This study lays the groundwork for reactive membrane filtration to tackle the issues from micropollution. © 2020 by the authors. Licensee MDPI, Basel, Switzerland. | |
dc.publisher | MDPI AG | |
dc.rights | Attribution 4.0 International | |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | |
dc.source | Scopus OA2020 | |
dc.subject | Ceramic membrane | |
dc.subject | Photo-fenton | |
dc.subject | SMX | |
dc.subject | Toilet wastewater | |
dc.subject | ?-FeOOH | |
dc.type | Article | |
dc.contributor.department | CIVIL AND ENVIRONMENTAL ENGINEERING | |
dc.description.doi | 10.3390/nano10010180 | |
dc.description.sourcetitle | Nanomaterials | |
dc.description.volume | 10 | |
dc.description.issue | 1 | |
dc.description.page | 180 | |
Appears in Collections: | Elements Staff Publications |
Show simple item record
Files in This Item:
File | Description | Size | Format | Access Settings | Version | |
---|---|---|---|---|---|---|
10_3390_nano10010180.pdf | 2.55 MB | Adobe PDF | OPEN | None | View/Download |
This item is licensed under a Creative Commons License