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Hoffselva showcase video

The Hoffselva River in Oslo, Norway, flows through an increasingly populated and urbanized area. As an important natural element in the urbanized environment of the lower catchment part, Hoffselva River provides recreational services, which are affected by the water quality. Along the river there are several combined sewer overflow facilities, shortly called CSO’s. During heavy rain events, they discharge untreated water with a high content in sewage garbage and particles as well as nitrogen and phosphorus into the river.

Therefore, the European research project DESSIN has demonstrated local treatment solutions for the overflow from CSOs, which are demonstrated in this video.