Archive News

March 29, 2022Artificial floods mimick natural flows to mobilise and transport sediment downstream, reshape the river and reinstate important habitats for native aquatic insects and fish. Improved outcomes can occur when these artificial floods converge with natural flows and sediment delivery from unregulated tributary streams further down the valley.

March 1, 2022The use of lake and river water to generate heat and cold is constantly increasing. The potential is enormous. Nevertheless, negative impacts on aquatic ecosystems must be avoided. A fact sheet from Eawag lists the key points in this regard.

January 20, 2022Switzerland has around 800 municipal wastewater treatment plants. A recent study by Eawag researchers reveals the burden these plants place on the climate, and explores how emissions of climate-damaging nitrous oxide can be reduced.

January 12, 2022All living organisms that respire have to get rid of electrons. In oxygen-free environments, microorganisms deploy special molecules which act as extracellular electron shuttles to transfer the electrons from cells to minerals. A group of researchers has now discovered what determines the electron transfer efficiency of these “taxi” cars: the energy differences of the transported electrons.

December 7, 2021With around 200 pictures and texts, the new Water Timeline takes you through 200 years of the eventful history of Swiss water protection. It aims to show how shifts towards more sustainable management of natural resources can be shaped. 

November 22, 2021ETH Zurich has awarded the Otto Jaag Water Protection Prize to environmental engineer Elisa Calamita for her doctoral thesis “Modelling the effects of large dams on water quality in tropical rivers.” The price honours outstanding dissertations and master theses from ETH Zurich in the field of water protection and hydrology.

November 17, 2021The separation toilet save! has won the Design Award Switzerland 2021. This is also a milestone for Tove Larsen. She is a member of the Eawag Directorate and has been researching for almost 30 years how the nutrients in wastewater can be recovered in a useful way. In this interview on the occasion of World Toilet Day 2021, she explains how crucial our handling of wastewater is for climate change and for achieving the SDGs sustainability goals.

November 17, 2021Together with a team of researchers and designers, Kai Udert has designed a toilet system that makes it possible to recycle nutrients from wastewater on-site. As a result, valuable nutrients can be recovered and used as fertilisers so that they no longer end up in lakes and oceans where they do a lot of damage. Now he wants to make the system ready for market together with industry partners.

September 30, 2021Although the consequences of climate change are becoming more and more visible and tangible, the transition to climate-friendly energy systems is only proceeding slowly. In a field experiment, Eawag and the University of Groningen (NL) investigated what kind of measures could be used to better promote innovations such as heat pumps.

September 17, 2021The chaotic behaviour of vortices is one of the things that makes weather forecasting so difficult. Researchers at ETH Zurich, Eawag and WSL, together with international partners, have now developed a novel experimental method that enables more accurate analyses of the movement and energy of turbulence in fluids with much less effort.