Diclofenac removal from waste water by UV-A LED-based heterogeneous photocatalysis

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dc.contributor.author Trousil, Vojtěch
dc.contributor.author Palarčík, Jiří
dc.contributor.author Smolný, Marek
dc.contributor.author Blažková, Zuzana
dc.contributor.author Machalický, Oldřich
dc.contributor.author Cakl, Jiri
dc.date.accessioned 2019-10-03T07:41:05Z
dc.date.available 2019-10-03T07:41:05Z
dc.date.issued 2019
dc.identifier.isbn 978-80-7560-243-5
dc.identifier.issn 1211-5541
dc.identifier.uri https://hdl.handle.net/10195/74261
dc.description.abstract Degradation of the active pharmaceutical ingredient diclofenac (DCL) was studied using a laboratory-scale photoreactor equipped with highly efficient UV-A LEDs. Three photocatalysts (Aeroxide P25, Hombikat UV 100 and Precheza AV01) were tested and compared. In addition to deionized water, the other types of water (water matrices), were then tap water, unfiltered surface water, and the primary effluent of a wastewater from the municipal treatment plant. The experimental results indicated that the UV-A LED source operating at a wavelength of 368 nm had been much more efficient when combined with Precheza AV-01 photocatalyst of the microstructured anatase type. A negligible contribution of photolysis was noticed, while UV-A/TiO2 photocatalysis was more efficient in DCL removal in both the tap and the surface water matrices. The removal rate of DCL from the wastewater matrix was more dependent on the matrix itself than on the chemical structure of the micropollutant. The addition of hydrogen peroxide to the photocatalytic system enhanced the removal rates. The results of the algal growth inhibition test revealed a significant reduction of toxicity to Parachlorella kessleri after UV-A LED irradiation of the DCL solution. In addition, the reduction of the 'matrix toxicity' was also observed. en
dc.format p. 101 - 116
dc.language.iso en
dc.publisher University of Pardubice en
dc.relation.ispartof Scientific papers of the University of Pardubice. Series A, Faculty of Chemical Technology. 25/2019 en
dc.rights open access en
dc.subject diclofenac en
dc.subject photocatalytic degradation en
dc.subject UV-A LEDs en
dc.subject wastewater en
dc.title Diclofenac removal from waste water by UV-A LED-based heterogeneous photocatalysis en
dc.type Article en
dc.peerreviewed yes en
dc.publicationstatus published en
dc.identifier.obd 39883354

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