Drinking Water

Prevention is better than cure

Thanks to the fact that Switzerland’s surface waters have been kept clean, this maxim has to a large extent been upheld. However, the presence of new (harmful) substances allows no room for complacency on this front. Globally, there is an urgent need for cost-effective and energy-efficient water treatment solutions on various scales - all the way through to wastewater recycling.


May 9, 2022

May 9, 2022Oliver Schilling is newly appointed Professor of Hydrogeology at the University of Basel, where he is setting up a research group that is also associated with the Eawag Water Resources and Drinking Water Department in Dübendorf. This dual affiliation is perfect, says Schilling.

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April 14, 2022

April 14, 2022Chlorination of drinking water reduces infections – and it changes the composition of the intestinal flora of young children, as a study published today in “Nature Microbiology” shows. The results indicate that the diversity of the intestinal flora isn’t reduced and bacteria associated with gut health are increased.

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Scientific publications

Araya, D.; Podgorski, J.; Kumi, M.; Mainoo, P. A.; Berg, M. (2022) Fluoride contamination of groundwater resources in Ghana: country-wide hazard modeling and estimated population at risk, Water Research, 212, 118083 (10 pp.), doi:10.1016/j.watres.2022.118083, Institutional Repository
Lightfoot, A. K.; Brennwald, M. S.; Prommer, H.; Stopelli, E.; Berg, M.; Glodowska, M.; Schneider, M.; Kipfer, R. (2022) Noble gas constraints on the fate of arsenic in groundwater, Water Research, 214, 118199 (11 pp.), doi:10.1016/j.watres.2022.118199, Institutional Repository
Walpen, N.; Joss, A.; von Gunten, U. (2022) Application of UV absorbance and electron-donating capacity as surrogates for micropollutant abatement during full-scale ozonation of secondary-treated wastewater, Water Research, 209, 117858 (11 pp.), doi:10.1016/j.watres.2021.117858, Institutional Repository
Gulde, R.; Clerc, B.; Rutsch, M.; Helbing, J.; Salhi, E.; McArdell, C. S.; von Gunten, U. (2021) Oxidation of 51 micropollutants during drinking water ozonation: formation of transformation products and their fate during biological post-filtration, Water Research, 207, 117812 (20 pp.), doi:10.1016/j.watres.2021.117812, Institutional Repository
To the library


4.00 pm
Eawag Dübendorf, FC C20 or online

Birdsall-Dreiss Distinguished Lecture

9.00 am
Swiss Tech Convention Center Lausanne

Eawag Info Day 2022

Selected research projects and programs

Inhalation of legionella bacteria – which thrive in warm water – can cause illness: in a new project, an Eawag-led multidisciplinary research team is investigating how the risks associated with these bacteria can best be managed.
An inter- and transdisciplinary strategic research program that strives to develop novel non-gridconnected water and sani- tation systems that can function as comparable alternatives to network-based systems.
This project facilitates the exchange of data, maps and information on geogenic contaminants (focussing on arsenic and fluoride) via the web-based Groundwater Assessment Platform (GAP)
Sustainable urban water and wastewater management applied and implemented in the modular NEST building.

Regionale Wasserversorgung Basel-Landschaft 21

SWP assesses recontamination risks in treated water and evaluates strategies to prevent it: safe storage options, UV-C disinfection in storage containers and passive system-level chlorination.
With Helvetas-Nepal, this project aims to establish a drinking water security strategy in rural communities


Dr. Christian Binz
  • decentralized systems
  • innovation
  • global change
  • sustainable transitions
  • urban water management
Dr. Silvio Canonica
  • photochemistry
  • drinking water
  • water treatment
Dr. Frederik Hammes
  • drinking water
  • water treatment
  • sensors
  • Flow cytometry
  • Biological filtration
Prof. Dr. Janet Hering
  • biogeochemistry
  • sustainable water management
  • water treatment
  • water quality
Dr. Stephan Hug
  • arsenic
  • solid-water interfaces
  • groundwater
  • spectroscopic methods
Dr. Tim Julian
  • microbes
  • urban sanitation
Prof. Dr. Rolf Kipfer
  • noble gases
  • isotopes
Prof. Dr. Mario Schirmer
  • groundwater
  • hydrogeology
  • modeling
  • surface water
Dr. Andreas Voegelin
  • wastewater
  • arsenic
  • solid-water interfaces
  • geogenic contaminants
  • nanoparticles
  • spectroscopic methods
  • water treatment
Prof. Dr. Urs Von Gunten
  • advanced oxidation processes
  • ozonation
  • drinking water
  • water treatment
Prof. Dr. Lenny Winkel
  • inorganic contaminants
  • arsenic
  • groundwater
  • organic pollutants
  • sediments
  • selenium

Cover picture: Well shaft of a horizontal filter well of Zurich Water Supply in Hardhof. (Photo: Urs von Gunten)