Počet záznamů: 1
Fate of antifungal drugs climbazole and fluconazole in constructed wetlands Diastereoselective transformation indicates process conditions
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SYSNO ASEP 0548812 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Fate of antifungal drugs climbazole and fluconazole in constructed wetlands Diastereoselective transformation indicates process conditions Tvůrce(i) Sochacki, A. (CZ)
Maršík, P. (CZ)
Chen, Z. (CZ)
Šíša, Miroslav (UEB-Q) ORCID
Vymazal, J. (CZ)Celkový počet autorů 5 Číslo článku 127783 Zdroj.dok. Chemical Engineering Journal. - : Elsevier - ISSN 1385-8947
Roč. 421, OCT 1 (2021)Poč.str. 9 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova Antifungal drugs ; Constructed wetlands ; Plant uptake ; Stereoselective transformation ; Transformation products Obor OECD Environmental biotechnology Způsob publikování Open access Institucionální podpora UEB-Q - RVO:61389030 UT WOS 000664193800001 EID SCOPUS 85097055869 DOI 10.1016/j.cej.2020.127783 Anotace Climbazole (CBZ) and fluconazole (FCZ) belong to the class of azole antifungal drugs that are widely used in medicine and as ingredients of cosmetics, and in result have been frequently detected in municipal and domestic wastewater and in natural watercourses. So far, the behaviour of azole antifungal drugs in constructed wetlands has been scarcely reported. In this study the fate of CBZ and FCZ was investigated in constructed wetlands with various water saturation levels and with or without the vegetation. The experimental column system was operated in outdoor conditions for 122 days and was fed with artificial wastewater containing CBZ or FCZ at 10 μg/L, each. The removal of FCZ was negligible and the removal of CBZ was ≥90% in unsaturated and partially saturated conditions and in saturated columns with plants. Unvegetated saturated columns provided only moderate removal of CBZ (56%). Plants took up only small portion of FCZ or CBZ (1–2%) as referred to the influent load. Contrasting translocation factor (roots-leaves) was observed for CBZ (TF = 0.1) and FCZ (TF = 4.6). The transformation products of CBZ in the effluents were: reduced CBZ (CBZ-alcohol) and hydroxylated (oxidized) CBZ. CBZ-alcohol was detected in two diasteromers that were quantified throughout the experiment. The ratio of the diastereomers depended on the water saturation level and to a lesser extent on the presence of plants and was in the range from 0.10 for saturated columns to 2.02 in unsaturated columns, which suggested stereoselective formation/degradation reactions. CBZ-alcohol was probably further degraded and its degradation efficiency corresponded to CBZ removal. In contrast to CBZ, CBZ-alcohol was translocated to the above-ground tissues of the plants. The translocation of CBZ-alcohol was deemed a stereoselective process. Pracoviště Ústav experimentální botaniky Kontakt David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469 Rok sběru 2022 Elektronická adresa http://doi.org/10.1016/j.cej.2020.127783
Počet záznamů: 1