Welcome
Welcome
Eawag is a world-leading aquatic research
institute. Its research, which is driven by the needs of society, provides the
basis for innovative approaches and technologies in the water sector. Through
close collaboration with experts from industry, government and professional
associations, Eawag plays an important bridging role between theory and practice,
allowing new scientific insights to be rapidly implemented.
| 12 December 2013 |
Keeping fish away from turbines Fish ladders or naturally designed bypass channels allow common nase, barbel and other fish to bypass hydro-electric plants and migrate upstream. Unfortunately, such measures do not work downstream. The fish follow the direction of flow and end up in the turbines. Now a joint project with the Association of Aare and Rhine Power Stations (VAR), the ETH Research Institute for Hydraulic Engineering, Hydrology and Glaciology (VAW) and Eawag is to investigate what measures can be put in place to improve the downstream passage of fish where larger hydro-electric plants are concerned, if possible without compromising electricity production. [...] |
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| 3 December 2013 |
Aquifers suffocate when river beds silt up River water temperatures have been rising regularly. By analysing data from municipal pumping stations, the Eawag researchers Simon Figura, David Livingstone and Rolf Kipfer have observed that this trend also extends to groundwater, where the average temperature increase up to 0.6°C every ten years. In the course of the last few decades, the oxygen concentration levels in aquifers in the Swiss Plateau have dropped irregularly. Results of the National Research Programme "Sustainable Water Management” (NRP 61) suggest that the irregular decrease might be related to various degrees of silting in watercourses. [...] |
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| 5 November 2013 |
Infrastructure: Beware of investment backlog The engineering firm Hunziker Betatech has devised an unusual 50th anniversary present for itself: a study of the condition of the water and sewage pipes in Switzerland. This study was undertaken by the Gottlieb Duttweiler Institute with help from Eawag researchers. Their conclusion: beware of an investment backlog! [...] |