Dynamization of Urban Runoff Pollution and Quantity

At present, the annual loads from long-term series simulations are mostly used for evaluation of rainwater management and treatment measures although relevance temporal distribution both pollution quantity has a recognizable influence on performance treatment. With idea dynamizing simulation output values in relation to (i) single rainfall events, (ii) specific catchment characteristics, (iii) duration dry period between two events measurement devices scenario studies were established joint research project Lower Saxony. First results surface runoff qualities an urban sub-catchment Braunschweig/Germany presented high definition several parameters. A correlation analysis was performed identifying additional explanatory parameters that have first flush effect, such as characteristics or antecedent period. calculations possible reduction decentralized storm water by disconnecting showed 42–65%, depending The comparative data with different statistical methods shows uncertainties calculation pollution, flush, still very do not yet allow researchers derive forecast for, e.g., throttle control solely recording rain area characteristics.