Status quo report on wastewater treatment plant, receiving water's biocoenosis and quality as basis for evaluation of large-scale ozonation process
Autor: | L. Wendt, Henner Hollert, Sarah Könemann, Miriam A. Rosenbaum, Yvonne Müller, Ira Brückner, Johannes Pinnekamp, Kristina Kirchner, Kassandra Klaer, Regina Dolny, Sabrina Schiwy |
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Rok vydání: | 2018 |
Předmět: |
Pollution
Environmental Engineering media_common.quotation_subject 0208 environmental biotechnology 02 engineering and technology 010501 environmental sciences Wastewater 01 natural sciences Water Purification Ozone Rivers Germany Escherichia coli 0105 earth and related environmental sciences Water Science and Technology media_common Environmental engineering Total cell Drug Resistance Microbial 020801 environmental engineering Environmental science Sewage treatment Water quality Biocoenosis Water Pollutants Chemical |
Zdroj: | Water science and technology : a journal of the International Association on Water Pollution Research. 77(1-2) |
ISSN: | 0273-1223 |
Popis: | The project DemO3AC (demonstration of large-scale wastewater ozonation at the Aachen-Soers wastewater treatment plant, Germany) of the Eifel-Rur Waterboard contains the construction of a large-scale ozonation plant for advanced treatment of the entire 25 million m³/yr of wastewater passing through its largest wastewater treatment plant (WWTP). In dry periods, up to 70% of the receiving water consists of treated wastewater. Thus, it is expected that effects of ozonation on downstream water biocoenosis will become observable. Extensive monitoring of receiving water and the WWTP shows a severe pollution with micropollutants (already prior to WWTP inlet). (Eco-)Toxicological investigations showed increased toxicity at the inlet of the WWTP for all assays. However, endocrine-disrupting potential was also present at other sampling points at the WWTP and in the river and could not be eliminated sufficiently by the WWTP. Total cell counts at the WWTP are slightly below average. Investigations of antibiotic resistances show no increase after the WWTP outlet in the river. However, cells carrying antibiotic-resistant genes seem to be more stress resistant in general. Comparing investigations after implementation of ozonation should lead to an approximation of the correlation between micropollutants and water quality/biocoenosis and the effects that ozonation has on this matter. |
Databáze: | OpenAIRE |
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