Ozonation at the WWTP Neugut
The WWTP Neugut is currently establishing Switzerland's first large scale ozonation plant. This expansion is required by the new Swiss Water Protection Act to improve the removal of micropollutants. The Ecotox Centre contributes to this project: In collaboration with Eawag, it investigates the efficiency and stability of ozonation with subsequent biological treatment. The main focus is on the influence of the water composition on the removal of micropollutants and the efficiency of various biological post-treatment methods. Several bioassays are used to this end.
Applied test systems
- Yeast Estrogen Screen
- Combined Algae Test
- In situ Feeding Assay with Gammarids
- Chronic Reproduction test with Daphnids
- Fish Early Life Stage Test (FELST) with Rainbow Trouts
- Other bioassays as needed
Publications
Final report: Biologische Nachbehandlung von kommunalem Abwasser nach Ozonung – ReTREAT: Teilprojekt Biotests
Kienle, C., Werner, I., Fischer, S., Lüthi, C., Schifferli, A., Besselink, H., … Vermeirssen, E. L. M. (2022). Evaluation of a full-scale wastewater treatment plant with ozonation and different post-treatments using a broad range of in vitro and in vivo bioassays. Water Research, 212, 118084 (13 pp.). doi.org/10.1016/j.watres.2022.118084 , Institutional Repository
Böhler, M., Fleiner, J., McArdell, C. S., Teichler, R., Siegrist, H., Kienle, C., … Wunderlin, P. (2017). Projekt ReTREAT. Untersuchungen zu Verfahren für die biologische Nachbehandlung nach Ozonung. Aqua & Gas, 97(5), 54-63. , Institutional Repository
Bourgin, M., Beck, B., Boehler, M., Borowska, E., Fleiner, J., Salhi, E., Teichler, R., von Gunten, U., Siegrist, H. and McArdell, C.S. (2018) Evaluation of a full-scale wastewater treatment plant upgraded with ozonation and biological post-treatments: Abatement of micropollutants, formation of transformation products and oxidation by-products. Water. Res. 129, 486–498.
Völker, J., Stapf, M., Miehe, U. and Wagner, M. (2019) Systematic review of toxicity removal by advanced wastewater treatment technologies via ozonation and activated carbon. Environ. Sci. Technol. 53(13), 7215–7233
Contact
Dr. Cornelia Kienle
Send mail Tel. +41 58 765 5563