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Deciphering the simultaneous removal of carbamazepine and metronidazole by monolithic Co2AlO4@Al2O3 activated peroxymonosulfate by Min-Ping Zhu; Jia-Cheng E. Yang; Darren Delai Sun; Baoling Yuan; Ming-Lai Fu is a Engineering article available to read on EtoBox.
What is Deciphering the simultaneous removal of carbamazepine and metronidazole by monolithic Co2AlO4@Al2O3 activated peroxymonosulfate about?
Reported here is a pioneering work on the co-removal of carbamazepine (CBZ) and metronidazole (MNZ) by Co2AlO4@Al2O3 millispheres activated peroxymonosulfate (PMS). Compared with the single removal, the reduced ratios for the removal kinetics of MNZ (72.16%) are two times higher than that of CBZ (35.41%) within initial pH 3 – 9. This is essentially due to the higher oxidation affinity of SO4 •– and 1O2 toward CBZ than MNZ. Cl− facilitated the degradation of CBZ but inhibited the degradation of MNZ, probably ascribed to the formation of HOCl and Cl2 •−. HCO3 − and PO4 3− significantly inhibited the removal of CBZ and MNZ by scavenging SO4 •– and/or passivating the active sites of Co2AlO4@Al2O3. The degradation of CBZ is mainly due to the electron abstraction and oxygen addition, while the primary oxidation processes of MNZ include the denitration, ring opening and/or N-C cleavage. Because of the competition of CBZ against SO4 •−, the simultaneous removal process remarkably changed the main products of MNZ compared with the single removal process. The simultaneous removal of CBZ and MNZ increased the total bioaccumulation potential and mutagenicity risk of degradation products but he
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It is typically read by researchers, students, and practitioners in Engineering.
- Author
- Min-Ping Zhu; Jia-Cheng E. Yang; Darren Delai Sun; Baoling Yuan; Ming-Lai Fu
- Publisher
- Elsevier BV
- Published
- 2022
- Language
- EN
- Field
- Engineering (Physical Sciences)
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