Date
2024-01-09Author
Quian, JueyingAtallah Al-asad, HanaParniske, JannaBrandl, AndreaDegenhardt, MonikaMorck, TobiasMetadata
Show full item record
Aufsatz
Influence of effluent particles and particle-bound micropollutants on the removal of micropollutants and UVA₂₅₄ in wastewater effluent ozonation
Abstract
This study systematically investigated the influence of effluent particles and activated sludge (AS) particles on the removal of micropollutants via wastewater effluent ozonation within typical effluent total suspended solids (TSS) concentrations. A series of batch experiments revealed that particle concentrations up to 30 mg/L had a minor impact on the removal of organic micropollutants (OMPs) in the aqueous phase. Moreover, the reduction of UV absorbance at 254 nm (UVA₂₅₄) was negatively correlated to the level of particle concentration at ozone doses higher than 0.5 gO₃/gDOC. It indicates that UVA₂₅₄ abatement was more sensitive to the presence of particles compared to OMP removal. Organic micropollutants (OMPs) sorbed on effluent particles and sludge particles were extracted before and after ozonation. OMP sorption in effluent particles was 2–5 times higher than that in sludge particles. During the ozonation of raw secondary effluent, particle-bound micropollutants were removed comparably to the micropollutants in the aqueous phase. This suggests that the boundary layer surrounding the particle didn’t affect the removal of OMPs in the particle phase. Furthermore, the removal of existing OMPs (irbesartan, sulfamethoxazole, and metoprolol) in the effluent was used to assess the ozone and •OH exposure. In water samples with and without particles, the elimination of OMPs could be reliably predicted (R² > 0.95) by calculated ozone and •OH exposures.
Citation
In: Ecotoxicology and Environmental Safety Volume 270 (2024-01-09) eissn:1090-2414Sponsorship
Gefördert durch den Publikationsfonds der Universität KasselCitation
@article{doi:10.17170/kobra-202403069727,
author={Quian, Jueying and Atallah Al-asad, Hana and Parniske, Janna and Brandl, Andrea and Degenhardt, Monika and Morck, Tobias},
title={Influence of effluent particles and particle-bound micropollutants on the removal of micropollutants and UVA₂₅₄ in wastewater effluent ozonation},
journal={Ecotoxicology and Environmental Safety},
year={2024}
}
0500 Oax 0501 Text $btxt$2rdacontent 0502 Computermedien $bc$2rdacarrier 1100 2024$n2024 1500 1/eng 2050 ##0##http://hdl.handle.net/123456789/15534 3000 Quian, Jueying 3010 Atallah Al-asad, Hana 3010 Parniske, Janna 3010 Brandl, Andrea 3010 Degenhardt, Monika 3010 Morck, Tobias 4000 Influence of effluent particles and particle-bound micropollutants on the removal of micropollutants and UVA₂₅₄ in wastewater effluent ozonation / Quian, Jueying 4030 4060 Online-Ressource 4085 ##0##=u http://nbn-resolving.de/http://hdl.handle.net/123456789/15534=x R 4204 \$dAufsatz 4170 5550 {{Ozon}} 5550 {{Abwasser}} 5550 {{Mikroverunreinigung}} 5550 {{Belebtschlamm}} 7136 ##0##http://hdl.handle.net/123456789/15534
2024-03-06T08:21:18Z 2024-03-06T08:21:18Z 2024-01-09 doi:10.17170/kobra-202403069727 http://hdl.handle.net/123456789/15534 Gefördert durch den Publikationsfonds der Universität Kassel eng Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ Ozone Organic micropollutants Effluent suspended solids Wastewater Wastewater particles Ozone exposure 620 Influence of effluent particles and particle-bound micropollutants on the removal of micropollutants and UVA₂₅₄ in wastewater effluent ozonation Aufsatz This study systematically investigated the influence of effluent particles and activated sludge (AS) particles on the removal of micropollutants via wastewater effluent ozonation within typical effluent total suspended solids (TSS) concentrations. A series of batch experiments revealed that particle concentrations up to 30 mg/L had a minor impact on the removal of organic micropollutants (OMPs) in the aqueous phase. Moreover, the reduction of UV absorbance at 254 nm (UVA₂₅₄) was negatively correlated to the level of particle concentration at ozone doses higher than 0.5 gO₃/gDOC. It indicates that UVA₂₅₄ abatement was more sensitive to the presence of particles compared to OMP removal. Organic micropollutants (OMPs) sorbed on effluent particles and sludge particles were extracted before and after ozonation. OMP sorption in effluent particles was 2–5 times higher than that in sludge particles. During the ozonation of raw secondary effluent, particle-bound micropollutants were removed comparably to the micropollutants in the aqueous phase. This suggests that the boundary layer surrounding the particle didn’t affect the removal of OMPs in the particle phase. Furthermore, the removal of existing OMPs (irbesartan, sulfamethoxazole, and metoprolol) in the effluent was used to assess the ozone and •OH exposure. In water samples with and without particles, the elimination of OMPs could be reliably predicted (R² > 0.95) by calculated ozone and •OH exposures. open access Quian, Jueying Atallah Al-asad, Hana Parniske, Janna Brandl, Andrea Degenhardt, Monika Morck, Tobias 9 Seiten doi:10.1016/j.ecoenv.2023.115915 Ozon Abwasser Mikroverunreinigung Belebtschlamm publishedVersion eissn:1090-2414 Ecotoxicology and Environmental Safety Volume 270 false 115915 true
The following license files are associated with this item: