The road runoff of a sewered section of a road in Switzerland with a traffic intensity of 17,000 vehicles per day was intensely investigated over a period of 2 years. At the same time the road runoff was collected and pumped to a pilot plant for road runoff treatment. The treatment facilities consisted on one hand of shafts containing removable fleece filter bags and underlying GfeH-adsorber filters and on the other rotating fleece filter drums and subsequent adsorbers. It could be shown that the investigated processes for road runoff treatment can be operated as modular systems in one-, two-, or three-step flow schemes. Depending on the process scheme between 70% and 97% of the heavy metals could be removed.
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Boller, M., Langbein, S., Steiner, M. (2007). Characterization of road runoff and innovative treatment technologies. In: Morrison, G.M., Rauch, S. (eds) Highway and Urban Environment. Alliance For Global Sustainability Bookseries, vol 12. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-6010-6_38
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