Details zur Publikation |
| Kategorie | Textpublikation |
| Referenztyp | Zeitschriften |
| DOI | 10.1016/j.jhazmat.2025.140795 |
| Titel (primär) | Mitigating tetracyclines in struvite recovery from swine wastewater by respectively applying unactivated and activated peroxymonosulfate oxidation |
| Autor | Huang, X.; Ye, Z.-L.; Ding, C.; Adrian, L.
; Liao, W. |
| Quelle | Journal of Hazardous Materials |
| Erscheinungsjahr | 2026 |
| Department | MEB |
| Band/Volume | 501 |
| Seite von | art. 140795 |
| Sprache | englisch |
| Topic | T7 Bioeconomy |
| Supplements | Supplement 1 |
| Keywords | Struvite; Antibiotics; Peroxymonosulfate; Dissolved organic matters; Reactive oxygen species |
| Abstract | Mitigating antibiotics during struvite (MgNH4PO4·6H2O) recovery from swine wastewater is critical to preventing the spread of antibiotic resistance. In this study, unactivated peroxymonosulfate (PMS) and ultraviolet activated peroxymonosulfate (UV/PMS) oxidations were employed to degrade tetracyclines (TCs) during struvite recovery by using synthetic and real wastewaters, respectively. Results demonstrated that UV/PMS possessed higher TCs removal efficiency (93.72 %-96.74 %) in synthetic wastewater than PMS. Unexpectedly, the unactivated PMS process showed higher efficiency (54.58 %-64.92 %) than the radical-based UV/PMS process (51.35 %-61.72 %) in real wastewater, leading to lower TCs residue in recovered struvite. This unexpected result can be attributed to the abundant dissolved organic matters (DOM) in real wastewater acting as a scavenger for radicals (•SO4- and •HO), thereby inhibiting the UV/PMS system. Nevertheless, the non-radical PMS pathway selectively targeted electron-rich lipid-like and protein DOM components that preferentially complex with TCs, as revealed by Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR-MS). Furthermore, fractionated DOM with different molecular weight cut-offs confirmed the targeted attack occurred in the high molecular weight DOM (FDOM1) with electron-rich fraction where TCs were concentrated. This study elucidated the critical role of DOM in different oxidation pathways and highlights that non-radical mechanisms represent a more selective and effective approach for pollutant degradation in DOM-rich environments, providing a novel strategy for safer nutrient recovery. |
| dauerhafte UFZ-Verlinkung | https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=31950 |
| Huang, X., Ye, Z.-L., Ding, C., Adrian, L., Liao, W. (2026): Mitigating tetracyclines in struvite recovery from swine wastewater by respectively applying unactivated and activated peroxymonosulfate oxidation J. Hazard. Mater. 501 , art. 140795 10.1016/j.jhazmat.2025.140795 |
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