Elimination of organic micropollutants in a municipal nutrient removal plant upgraded with a full-scale post-ozonation followed by sand filtration

Escher, Beate, Bramaz, N, Gansner, E, Hollender, J, Koch, M, Koepke, S, Krauss, M, Mcrdell, CS, Ort, C, Singer, H, von Gunten, U, Siegrist, H and Zimmermann, SG (2009). Elimination of organic micropollutants in a municipal nutrient removal plant upgraded with a full-scale post-ozonation followed by sand filtration. In: 7th IWA World Congress on Water Reclamation and Reuse (REUSE09). 7th IWA World Congress on Water Reclamation and Reuse (REUSE09), Brisbane, Australia, (). 20 - 25 Sep 2009.


Author Escher, Beate
Bramaz, N
Gansner, E
Hollender, J
Koch, M
Koepke, S
Krauss, M
Mcrdell, CS
Ort, C
Singer, H
von Gunten, U
Siegrist, H
Zimmermann, SG
Title of paper Elimination of organic micropollutants in a municipal nutrient removal plant upgraded with a full-scale post-ozonation followed by sand filtration
Conference name 7th IWA World Congress on Water Reclamation and Reuse (REUSE09)
Conference location Brisbane, Australia
Conference dates 20 - 25 Sep 2009
Convener International Water Association IWA
Proceedings title 7th IWA World Congress on Water Reclamation and Reuse (REUSE09)
Place of Publication Brisbane, Australia
Publisher In Kim (IWA Specialist Group)
Publication Year 2009
Sub-type Fully published paper
Open Access Status
Collection year 2010
Language eng
Abstract/Summary The aim of the project MicroPoll (www.umwelt-schweiz.ch/micropoll) is to compile decision-support information and to develop a strategy for reducing the release of micropollutants from wastewater treatment plants (WWTPs) in Switzerland. Within the project the WWTP of Regensdorf near Zurich (current load 15,000 inhabitants plus 10,000 population equivalents) was upgraded with a full-scale ozonation step after secondary treatment and prior to sand filtration. The method developed for the screening of micropollutants is comprehensive and can also be applied for other enhanced or advanced water treatment processes. The full-scale reactor proves ozonation to be an efficient technique for the elimination of micropollutants from secondary effluent as well as for disinfection at reasonable additional energy consumption. The specific and non-specific toxicity is significantly reduced by ozonation indicating that no further toxic compounds are produced. Additional sand filtration is useful for elimination of N-nitrosodimethylamine and biodegradable compounds formed during ozonation.
Subjects 960611 Urban Water Evaluation (incl. Water Quality)
090409 Wastewater Treatment Processes
EX
Keyword water quality
wastewater
Q-Index Code EX
Q-Index Status Provisional Code
Additional Notes Confirmation received to process as E1. USB given to all attendees.

 
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Created: Mon, 15 Mar 2010, 17:40:00 EST by Professor Beate Escher on behalf of National Res Centre For Environmental Toxicology