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Daily variation of lipid regulators and personal care products in a river impacted by domestic effluents in southern brazil

Almeida Brehm Goulart, Franciane de; Reichert, Gabriela 1; Felippe, Tais Cristina; Mizukawa, Alinne; Antonelli, Jhonatas; Fernandes, Cristóvão Scapulatempo; Azevedo, Júlio César Rodrigues de
1 Karlsruher Institut für Technologie (KIT)


In urban areas, wastewater treatment plants (WWTPs) play a major role in the water quality of rivers. The removal efficiency of emerging contaminants by WWTPs is strongly correlated with the type of treatment and the hydraulic retention time (HRT) of the process, which can vary according to the volumetric influent flow of wastewater and occasional peak flows. This paper aims, for the first time, to assess the daily variation of lipid regulators and personal care products in an urban river impacted by domestic effluents. Samples were collected upstream and downstream of a WWTP. The concentrations downstream of the effluent discharge were higher than upstream, but they varied significantly during the day. Concentration peaks upstream of the WWTP were detected at 07:00, 15:00 and 21:00, while downstream of the effluent discharge, concentration peaks occurred between 13:00 and 19:00 and between 21:00 and 23:00. The highest downstream concentrations of triclosan and methylparaben (420 ng L$^{-1}$ and 460 ng L$^{-1}$) were 6.8 and 5.4 times higher than the lowest concentrations detected, respectively. These results show that in WWTP-impacted rivers, the time of the sampling has a great influence on the final results and conclusions of a monitoring study.

Verlagsausgabe §
DOI: 10.5445/IR/1000133991
Veröffentlicht am 20.09.2021
DOI: 10.3390/w13101393
Zitationen: 1
Web of Science
Zitationen: 1
Zitationen: 1
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Wasser und Gewässerentwicklung (IWG)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2021
Sprache Englisch
Identifikator ISSN: 2073-4441
KITopen-ID: 1000133991
Erschienen in Water (Switzerland)
Verlag MDPI
Band 13
Heft 10
Seiten 1393
Nachgewiesen in Dimensions
Web of Science
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