






Vol.1 , No. 3, Publication Date: Dec. 19, 2014, Page: 80-90
[1] | Tiit Koppel, Department of Mechanics, Tallinn University of Technology, Tallinn, Estonia. |
[2] | Anatoli Vassiljev, Department of Mechanics, Tallinn University of Technology, Tallinn, Estonia. |
[3] | Raido Puust, Department of Mechanics, Tallinn University of Technology, Tallinn, Estonia. |
[4] | Janek Laanearu, Department of Mechanics, Tallinn University of Technology, Tallinn, Estonia. |
This paper presents the stormwater measurements and modelling results of contaminated rainwater discharge in the capital of Estonia, Tallinn. Pollutant concentration and runoff was measured in six urban area subcatchments (0.56 – 481 ha in size). Rainfall events were monitored during one year (2008). Selected subcatchments cover areas of transportation, residential and commercial areas. The water flow and quality were modelled by the USEPA SWMM 5 model. The accuracy of water quality modelling depends on the precision of stormwater hydraulic modelling and precipitation measurements. Water quality was modelled for concentrations of suspended solids. It was found that concentration of suspended solids may have high peak values at the start of water flow. Differences between flow weighted and non-flow weighted average concentrations are analysed here for different sampling intervals.
Keywords
Hydrology & Water Resoruce, Pollution, Sewers & Drains, Sewage Treatment & Disposal
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