Publication Details |
| Category | Text Publication |
| Reference Category | Journals |
| DOI | 10.1016/j.watres.2022.118847 |
| Title (Primary) | Assessing the protection gap for mobile and persistent chemicals during advanced water treatment – A study in a drinking water production and wastewater treatment plant |
| Author | Gollong, G.; Neuwald, I.J.; Kuckelkorn, J.; Junek, R.; Zahn, D.
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| Source Titel | Water Research |
| Year | 2022 |
| Department | ANA |
| Volume | 221 |
| Page From | art. 118847 |
| Language | englisch |
| Topic | T9 Healthy Planet |
| Supplements | https://ars.els-cdn.com/content/image/1-s2.0-S0043135422007941-mmc1.docx |
| Keywords | Nontarget screening; Ozonation; Activated carbon; Toxicity assessment; Oxidative stress; PMT/vPvM chemicals |
| Abstract | Persistent and mobile (PM) chemicals spread quickly in the water cycle and can reach drinking water. If these chemicals are also toxic (PMT) they may pose a threat to the aquatic environment and drinking water alike, and thus measures to prevent their spread are necessary. In this study, nontarget screening and cell-based toxicity tests after a polarity-based fractionation into polar and non-polar chemicals are utilized to assess and compare the effectiveness of ozonation and filtration through activated carbon in a wastewater treatment and drinking water production plant. Especially during wastewater treatment, differences in removal efficiency were evident. While median areas of non-polar features were reduced by a factor of 270, median areas for polar chemicals were only reduced by a factor of 4. Polar features showed significantly higher areas than their non-polar counterparts in wastewater treatment plant effluent and finished drinking water, implying a protection gap for these chemicals. Toxicity tests revealed higher initial toxicities (especially oxidative stress and estrogenic activity) for the non-polar fraction, but also showed a more pronounced decrease during treatment. Generally, the toxicity of the effluent was low for both fractions. Combined, these results imply a less effective removal but also a lower toxicity of polar chemicals. The behaviour of features during advanced waste and drinking water treatment was used to classify them as either PM chemicals or mobile transformation products (M-TPs). A suspect screening of the 476 highest intensity PM chemicals and M-TPs in 57 environmental and tap water samples showed high frequencies of detection (median >80%), which indicates the wide distribution of these chemicals in the aquatic environment and thus supports the chosen classification approach and the more generally applicability of obtained insights. |
| Persistent UFZ Identifier | https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=29958 |
| Gollong, G., Neuwald, I.J., Kuckelkorn, J., Junek, R., Zahn, D. (2022): Assessing the protection gap for mobile and persistent chemicals during advanced water treatment – A study in a drinking water production and wastewater treatment plant Water Res. 221 , art. 118847 10.1016/j.watres.2022.118847 |
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