Details zur Publikation

Kategorie Textpublikation
Referenztyp Zeitschriften
DOI 10.1016/j.watres.2024.122436
Lizenz creative commons licence
Titel (primär) Fate of persistent and mobile chemicals in the water cycle: From municipal wastewater discharges to river bank filtrate
Autor Muschket, M.; Neuwald, I.J.; Zahn, D. ORCID logo ; Seelig, A.H.; Kuckelkorn, J.; Knepper, T.P.; Reemtsma, T.
Quelle Water Research
Erscheinungsjahr 2024
Department EXPO; EAC
Band/Volume 266
Seite von art. 122436
Sprache englisch
Topic T9 Healthy Planet
Supplements https://ars.els-cdn.com/content/image/1-s2.0-S0043135424013356-mmc1.docx
https://ars.els-cdn.com/content/image/1-s2.0-S0043135424013356-mmc2.xlsx
Keywords PM compounds; micropollutants; groundwater; risk assessment; vPvM; ionic liquids
Abstract Persistent and mobile (PM) chemicals are considered detrimental for drinking water resources as they may pass through all barriers protecting these resources against pollution. However, knowledge on the occurrence of PM chemicals in the water cycle, that make their way into drinking water resources, is still limited. The effluents of six municipal wastewater treatment plants (WWTPs, n = 38), surface water of two rivers (n = 32) and bank filtrate of one site (n = 15) were analyzed for 127 suspected PM chemicals. In the rivers, median concentrations of 92 detected analytes ranged from 0.3 ng/L to 2.6 µg/L (tetrafluoroborate, BF4). Lower than average dilution from WWTP effluent to surface water of 43 PM chemicals suggests significant discharge from other sources. Many of these compounds were industrial chemicals, including cyanoguanidine, trifluoromethanesulfonic acid and BF4. River bank filtration (RBF) reduced the total concentration of 40 quantified compounds by 80 % from 329 µg/L in surface water to 66 µg/L in bank filtrate, on average. Of these, 20 compounds showed good removal (> 80 %), 14 intermediate (80 – 20 %) and 6 no removal (≤ 20 %), among them carbamazepine, hexafluorophosphate, and 2-pyrrolidone. 13 substances occurred at concentrations ≥ 0.1 µg/L in bank filtrate; for six of them toxicological data were insufficient for a health-based risk assessment. The regulatory definition of P and M chemicals, if used together with existing data on environmental half-lives (P) and Koc (M), showed little power to discriminate between chemicals well removed in RBF and those that were hardly removed. This comprehensive field study shows that RBF is a useful but incomplete barrier to retain PM chemicals from surface water. Thus, PM chemicals are, indeed, a challenge for a sustainable water supply.
dauerhafte UFZ-Verlinkung https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=29643
Muschket, M., Neuwald, I.J., Zahn, D., Seelig, A.H., Kuckelkorn, J., Knepper, T.P., Reemtsma, T. (2024):
Fate of persistent and mobile chemicals in the water cycle: From municipal wastewater discharges to river bank filtrate
Water Res. 266 , art. 122436 10.1016/j.watres.2024.122436