Enhanced removal of antibiotics in hospital wastewater by Fe-ZnO activated persulfate oxidation

Autor: Joohyun Kim, Sungjun Bae, Khalil Hanna, Gnougon Nina Coulibaly, Aymen Amin Assadi
Přispěvatelé: Institut des Sciences Chimiques de Rennes (ISCR), Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Centre National de la Recherche Scientifique (CNRS)-Ecole Nationale Supérieure de Chimie de Rennes-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES), Konkuk University [Seoul], Ministère de l'Enseignement supérieur, de la Recherche et de l'Innovation, MESRINational Research Foundation of Korea, NRF NRF-2017K1A3A1A21013653, Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Contaminated wastewater
Environmental Engineering
Rate constants
chemistry.chemical_element
Effluents
02 engineering and technology
Zinc
Wastewater treatment
010501 environmental sciences
01 natural sciences
Iron oxides
Chemicals removal (water treatment)
chemistry.chemical_compound
Degradation
Activated persulfate
Wastewater constituents
Antibiotics
Competition effects
Oxidizing agent
Zinc oxide
Oxidation
medicine
Wastewater treatment process
Effluent
Sulfur compounds
0105 earth and related environmental sciences
Water Science and Technology
Chemistry
[SDE.IE]Environmental Sciences/Environmental Engineering
II-VI semiconductors
021001 nanoscience & nanotechnology
Persulfate
Hospital wastewater
Degradation efficiency
6. Clean water
Hospitals
Oxidative treatment
Wastewater
Flumequine
Titanium dioxide
Sewage treatment
0210 nano-technology
[CHIM.OTHE]Chemical Sciences/Other
medicine.drug
Nuclear chemistry
Zdroj: Environmental Science : Water Research and Technology
Environmental Science : Water Research and Technology, Royal Society of Chemistry, 2019, 5 (12), pp.2193-2201. ⟨10.1039/c9ew00611g⟩
Environmental Science : Water Research and Technology, 2019, 5 (12), pp.2193-2201. ⟨10.1039/c9ew00611g⟩
ISSN: 2053-1400
2053-1419
DOI: 10.1039/c9ew00611g⟩
Popis: International audience; Removal of two widely used antibiotics, flumequine (FLU) and ciprofloxacin (CIP), in synthetic and real hospital wastewaters was investigated using Fe-doped zinc oxide (Fe-ZnO) and UV-A irradiation. Fe-ZnO was supported on a cellulose acetate membrane and integrated in a recirculation reactor system, designed for continuous oxidative treatment of contaminated wastewaters. Addition of a low concentration of persulfate (e.g. 0.5 mM) improved considerably the degradation extent, where sulfate radicals were found to be the most involved oxidizing species. Oxidation rate constants decreased in mixture systems with respect to those of individual compounds, because of competition effects with radical species. Wastewater constituents like those found in hospital effluents affected the removal of both CIP and FLU, but CIP degradation is less affected probably because of its higher reactivity with sulfate radicals. Inorganic anions altered slightly the oxidation rate, while the organic compounds commonly found in wastewaters considerably reduced the degradation efficiency. ZnO doped with Fe exhibited photoactivity higher than bare zinc oxide and commercial TiO2, especially in hospital wastewater. The Fe–ZnO supported membrane can also be re-used for several oxidation runs, making this system quite suitable for larger applications in wastewater treatment processes.
Databáze: OpenAIRE
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