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Article

Photocatalytic Removal of Pharmaceuticals from Greywater

1
Department of Water Technology and Environmental Engineering, University of Chemistry and Technology Prague, Technicka 5, 166 28 Prague, Czech Republic
2
Centre for Innovations in the Field of Nanomaterials and Nanotechnologies, J. Heyrovsky Institute of Physical Chemistry, Czech Academy of Sciences, Dolejskova 3, 182 23 Prague, Czech Republic
3
Forensic Laboratory of Biologically Active Substances, Department of Chemistry of Natural Compounds, University of Chemistry and Technology Prague, Technicka 5, 166 28 Prague, Czech Republic
4
Department of Analytical Chemistry, University of Chemistry and Technology Prague, Technicka 5, 166 28 Prague, Czech Republic
*
Author to whom correspondence should be addressed.
Academic Editors: Jaime Carbajo and Patricia García-Muñoz
Catalysts 2021, 11(9), 1125; https://doi.org/10.3390/catal11091125
Received: 26 July 2021 / Revised: 14 September 2021 / Accepted: 16 September 2021 / Published: 18 September 2021
High concentrations of pharmaceuticals have been detected in greywater effluents treated using up-to-date technologies. Finding a suitable additional treatment before this effluent is reused is urgently needed to ensure the reused water meets quality standards. This paper reports the use of heterogeneous photocatalysis on anatase and rutile nanopowders to remove naproxen, metformin and sulfamethoxazole, at practically relevant concentrations found in membrane bioreactor (MBR)-treated greywater. A low anatase concentration of 400 mg L−1 was sufficient to efficiently degrade the pharmaceuticals listed above, with complete degradation observed in 5 h. The effect of background species presented in greywater was, to some extent, comparable to that of the OH-radical scavenger. These results prove that photocatalysis using anatase TiO2 is a feasible additional treatment for greywater recycling. View Full-Text
Keywords: greywater; photocatalysis; micropollutants; metformin; naproxen; sulfamethoxazole greywater; photocatalysis; micropollutants; metformin; naproxen; sulfamethoxazole
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MDPI and ACS Style

Ojobe, B.; Zouzelka, R.; Satkova, B.; Vagnerova, M.; Nemeskalova, A.; Kuchar, M.; Bartacek, J.; Rathousky, J. Photocatalytic Removal of Pharmaceuticals from Greywater. Catalysts 2021, 11, 1125. https://doi.org/10.3390/catal11091125

AMA Style

Ojobe B, Zouzelka R, Satkova B, Vagnerova M, Nemeskalova A, Kuchar M, Bartacek J, Rathousky J. Photocatalytic Removal of Pharmaceuticals from Greywater. Catalysts. 2021; 11(9):1125. https://doi.org/10.3390/catal11091125

Chicago/Turabian Style

Ojobe, Bukola, Radek Zouzelka, Barbora Satkova, Magdalena Vagnerova, Alzbeta Nemeskalova, Martin Kuchar, Jan Bartacek, and Jiri Rathousky. 2021. "Photocatalytic Removal of Pharmaceuticals from Greywater" Catalysts 11, no. 9: 1125. https://doi.org/10.3390/catal11091125

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