Ιδρυματικό Αποθετήριο
Πολυτεχνείο Κρήτης
Πολυτεχνείο Κρήτης
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| URI | http://purl.tuc.gr/dl/dias/A7354E43-05A1-4B84-820D-F92FFA00FB40 | - |
| Αναγνωριστικό | https://doi.org/10.1002/jctb.7329 | - |
| Αναγνωριστικό | https://scijournals.onlinelibrary.wiley.com/doi/10.1002/jctb.7329 | - |
| Γλώσσα | en | - |
| Μέγεθος | 10 pages | en |
| Τίτλος | Treatment of hospital wastewater: emphasis on ecotoxicity and antibiotic resistance genes | en |
| Δημιουργός | Kaliakatsos Andreas | en |
| Δημιουργός | Καλιακατσος Ανδρεας | el |
| Δημιουργός | Gounaki Iosifina | en |
| Δημιουργός | Γουνακη Ιωσηφινα | el |
| Δημιουργός | Dokianakis Spyros | en |
| Δημιουργός | Maragkaki Emmanouela | en |
| Δημιουργός | Stasinakis Athanasios S. | en |
| Δημιουργός | Gyparakis Stylianos | en |
| Δημιουργός | Katsarakis Nikos | en |
| Δημιουργός | Manios Thrassyvoulos | en |
| Δημιουργός | Fountoulakis Michalis S. | en |
| Δημιουργός | Venieri Danai | en |
| Δημιουργός | Βενιερη Δαναη | el |
| Εκδότης | Wiley | en |
| Περιγραφή | This research has been co-financed by the European Regional Development Fund of the European Union and Greek national funds through the Operational Program Competitiveness, Entrepreneurship and Innovation, under the call RESEARCH - CREATE - INNOVATE (project code: T2EDK-02905). | en |
| Περίληψη | BACKGROUND Hospital wastewater (HWW) charges wastewater treatment plants (WWTPs) with a mixture of contaminants such as pharmaceutically active compounds (PhACs) and pathogenic bacteria. This matrix is considered highly toxic to the ecosystem and organisms, and it may induce the development of antibiotic resistant bacteria (ARB) and the transfer of antibiotic resistance genes (ARGs) within microbial communities. Conventional WWTPs cannot treat HWW effectively, because they have not been designed to confront this challenge. Therefore, this study investigated the applicability of photocatalysis to purify HWW, regarding its ecotoxicity and the removal rates of targeted substances, selected pathogenic bacteria and specific ARGs. RESULTS The HWW samples showed high toxicity towards the bioindicator Daphnia magna population, while they also contained significant levels of ARB and ARGs. Upon application of the photocatalytic treatment, the pharmaceutical concentrations decreased at a rate of >80% and the removal rates of the examined bacteria (Escherichia coli, Enterococci, Klebsiella sp. and Staphylococcus sp.) were >80%. Importantly, the bacteria remaining after photocatalysis were sensitive to the tested antibiotics. Conversely, the examined ARGs were present in high concentrations before and after photocatalytic treatment. For example, the concentrations of the selected genes, namely ampC, sul2, tetA and qnrA, in the effluents were from 104 to 106 gene copies L−1. CONCLUSIONS Photocatalysis may be a promising treatment technique for the elimination of PhACs and pathogenic bacteria from HWW. Moreover, it proved capable of altering the antibiotic resistance profile of the bacteria surviving after treatment, making them sensitive to certain antibiotic compounds. However, the main concern regarding public health protection remains, as the presence of ARGs in effluents in considerable concentrations may induce antibiotic resistance in bacterial communities of aquatic environments. © 2023 The Authors. Journal of Chemical Technology and Biotechnology published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry (SCI). | en |
| Τύπος | Peer-Reviewed Journal Publication | en |
| Τύπος | Δημοσίευση σε Περιοδικό με Κριτές | el |
| Άδεια Χρήσης | http://creativecommons.org/licenses/by/4.0/ | en |
| Ημερομηνία | 2025-10-31 | - |
| Ημερομηνία Δημοσίευσης | 2024 | - |
| Θεματική Κατηγορία | Hospital wastewater | en |
| Θεματική Κατηγορία | Wastewater treatment | en |
| Θεματική Κατηγορία | Antibiotics | en |
| Θεματική Κατηγορία | Pharmaceuticals | en |
| Θεματική Κατηγορία | Antibiotic resistant bacteria | en |
| Θεματική Κατηγορία | Antibiotic resistance genes | en |
| Βιβλιογραφική Αναφορά | A. Kaliakatsos, I. Gounaki, S. Dokianakis, E. Maragkaki, A. S Stasinakis, S. Gyparakis, N. Katsarakis, T. Manios, M. S Fountoulakis, and D. Venieri “Treatment of hospital wastewater: emphasis on ecotoxicity and antibiotic resistance genes,” J. Chem. Technol. Biotechnol., vol. 99, no. 10, pp. 2129–2138, Oct. 2024, doi: 10.1002/jctb.7329. | en |
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