Optimise and overcome new challenges

The wastewater infrastructure in Switzerland is worth 125 billion Swiss francs. Nine hundred treatment plants clean the country’s wastewater around the clock. Part of the work of Eawag is to examine how this success story can be continuously optimised and tailored to suit the particular conditions in other countries, as well as to look at how to overcome new challenges


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April 27, 2017

If drinking water or wastewater containing bromide is treated with ozone to remove micropollutants, bromate – a potentially carcinogenic substance – is formed. Eawag scientists have developed a new process which makes it possible to minimize bromate formation during ozonation. This is achieved by transferring ozone to the water in small doses through the pores of PTFE membranes.  Read more

April 6, 2017

Over the past five years, 23 Swiss research groups have been investigating the behaviour of synthetic nanomaterials. Today the steering Committee and project leaders present their findings and a synthesis in a press conference at Bern. One of the main aims of National Research Programme 64 was to assess the risks they pose for human health and the environment.  Read more

Scientific publications

Zöllig,H.; Remmele,A.; Morgenroth,E.; Udert,K. (2017) Removal rates and energy demand of the electrochemical oxidation of ammonia and organic substances in real stored urine, Environmental Science: Water Research & Technology, 480-491, doi:10.1039/c7ew00014f, Institutional Repository
McCall,A.K.; Scheidegger,A.; Madry,M.M.Steuer,A.E.; Weissbrodt,D.G.; Vanrolleghem,P.A.; Kraemer,T.; Morgenroth,E.; Ort,C. (2016) Influence of different sewer biofilms on transformation rates of drugs, Environmental Science and Technology, 50(24), 13351-13360, doi:10.1021/acs.est.6b04200, Institutional Repository
Soltermann,F.; Abegglen,C.; Tschui,M.; Stahel,S.; von Gunten,U. (2017) Options and limitations for bromate control during ozonation of wastewater, Water Research, 116, 76-85, doi:10.1016/j.watres.2017.02.026, Institutional Repository
Bischel,H.N.; Schindelholz,S.; Schoger,M.; Decrey,L.; Buckley,C.A.; Udert,K.M.; Kohn,T. (2016) Bacteria inactivation during the drying of struvite fertilizers produced from stored urine, Environmental Science and Technology, 50(23), 13013-13023, doi:10.1021/acs.est.6b03555, Institutional Repository
Hernández,F.; Castiglioni,S.; Covaci,A.; de Voogt,P.; Emke,E.; Kasprzyk-Hordern,,B.; Ort,C.; Reid,M.; Sancho,J.V.; Thomas,K.V.; van Nuijs,A.L.N.; Zuccato,E.; Bijlsma,L. (2016) Mass spectrometric strategies for the investigation of biomarkers of illicit drug use in wastewater, Mass Spectrometry Reviews, 1-23, doi:10.1002/mas.21525, Institutional Repository
To the library
Wunderlin,P.; Joss,A.; Siegrist,H.; Abegglen,C.; Schärer,M. (2015) Verfahrenstechnik Mikroverunreinigungen, Aqua & Gas, 95(2), 14-19, Institutional Repository
Kaufmann,M.; Dürenmatt,D.; Villez,K. (2015) Verstecktes Potential in Kläranalgendaten. Anlageoptimierung Dank systematischer Datenauswertung, Aqua & Gas, 95(2), 76-81, Institutional Repository
Larsen,T.A.; Udert,K.M.; Lienert,J. (2014) Abwassertrennung und Dezentralisierung, Aqua & Gas, 94(1), 52-54, Institutional Repository
Vögeli,Y.; Lohri,C.R.; Gallardo,A.; Diener,S.; Zurbrügg,C. (2014) Anaerobic Digestion of Biowaste in Developing Countries. Practical Information and Case Studies, 135 pp, Institutional Repository

Current research projects and programs

Wings is an inter- and transdisciplinary strategic research program that strives to develop novel non-grid-connected water and sanitation systems that can function as comparable alternatives to network-based systems.
The National Research Programme "Sustainable Water Management" (NRP 61) developed scientific foundations and methods for sustainable management of Switzerland's water resources.


Marc Böhler
  • wastewater treatment
  • micropollutants
  • ozonation
Dr. Nicolas Derlon
  • wastewater
  • wastewater treatment
  • wastewater treatment plant
Dr. Adriano Joss
  • wastewater
  • micropollutants
  • ozonation
Dr. Kai Udert
  • wastewater separation
  • decentralized technologies
  • nutrients
  • urine separation
  • resource recovery