Test installations of bubble curtains showed massive noise reduction from underwater blasting with charges up to 1800 kg TNT. The Norwegian Coastal Administration; Kystverket, had decided to do scientific testing of the effects of bubble curtains on underwater noise. They did the testing in connection with real life underwater blasting works in the harbour of…
Previous Next Silt curtains in Oslo The eastern Oslo City Centre at Bjørvika in The Oslo Fjord is undergoing extensive urban development. Along the Akerselva river towards the fjord, new commercial buildings and cultural buildings are being built, among them the new Munch Museum, which is being built opposite the opera house. The construction activity…
At a lake restoration in Sweden, thin layer sediment removal successfully removed a 5 cm phosphorus enriched top layer of sediment in lake Rålången. The sediment was leaking nutrients causing algal bloom, euthrophication and anoxia in the lake and waterways downstream. Now the sediment is removed and will be pelleted fertilizer.
Silt can carry pollutants, cloud waters an cover bottom life. How do you prevent or mitigate the problem? The video above from Western Washington University shows how silt-contaminated currents move rapidly throug water bodies. The video shows how widely silt pollution will affect the waters, and illustrate how important it is to manage this when…
The Norwegian research institute SINTEF has been doing reserarch indicating that hurricanes can be prevented by Bubble curtains bringing cold water from the deep up to the surface to cool the surface water. This will slow down or stop the formation and powering of hurricanes, that depent on at surface temperatur of at least 26,5…
UN climate goals Waens support UN climate goals, especially relevant to us, goal 14, Life Below Water
