I am looking for papers/articles/studies that deal with ozonated waste water and its' influences on ecosystem-level, for example how it affects the community composition of e.g. macroinvertebrates, food webs, etc. So far, I have found many papers on the influence of ozonated waste water on single test-organisms (Danio rerio, Lemna, Daphnia...), but only one paper that is dealing with the whole stream (Ashauer 2016: Post-ozonation in a municipal wastewater treatment plant improves water quality in the receiving stream).
If you have any recommendations, please let me know :-)
Please see this reference if it is suitable:
Chiellini, C., Gori, R., Tiezzi, A., Brusetti, L., Pucciarelli, S., D'Amato, E., ... & Petroni, G. (2014). Ozonation effects for excess sludge reduction on bacterial communities composition in a full-scale activated sludge plant for domestic wastewater treatment. Environmental technology, 35(12), 1462-1469.
Dear Louisa,
take a closer look at the project "DemO3AC" on the WWTP Aachen Soers, they have a web page that can be found with google. This is the biggest ozonation on a WWTP in Europe (not taking WWTP Neugut in Switzerland into acccount ;-)).
They are investigating possible effects of ozone on the biocenosis in the receiving river "Wurm". I would suggest getting in touch with Ira Brückner (Project Lead, Water Board Eifel Rur), also here on researchgate.
Best regards!
Frank.
Dear Frank Benstoem , thanks for your comment! I have already met her on a conference last year and looked up the project, but so far I only found a status quo report on the biocenosis before the implementation of the ozone treatment. I will write her a message though :-)
The answers to your question could be of great benefit to me too. Thank you
If I understand your point, the paradigm is not O3 effect on the environment or WW, since the oxydizing effect will be "consumed" within the WWTP... but impact of the treated WW on the ecosystem.
O3 is generally good to demonstrate that targeted molecules are destroyed (RSDE/micropollutants/pesticides...), with a theoritical positive effect on the receiving stream...
...but the question is what is the impact of the oxydized/cut form of such molecules or residues, if not eaten by further biological treatment... and the question remains widely open as nobody knows exactly what is to be looked at and what is really dangerous... (sensitivity is known mainly for commercial molecules, imposed by REACH regulation, but not for partially cut/oxydized molecules)
This is why extraction processes like activated carbon or others have their particular interest.
Some offers like "Watchfrog" are evaluating such impact to the ecosystem. They may be of help.
I'm interested as well if you find impact studies. I'll look further.
Thanks to let me know result of your investigations.
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