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Published in:
2021 | OriginalPaper | Chapter
Maximum Daily Stormwater Runoff Flow Rates at the Inlet of the Lviv WWTP Based on the Results of Systematic Hydrologic Observations of the Catchment
Authors : Volodymyr Zhuk, Lesya Vovk, Ivan Matlai, Ihor Popadiuk
Published in: Proceedings of EcoComfort 2020
Publisher: Springer International Publishing
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Abstract
Method of the estimation of maximum daily stormwater flow rates from the urban catchments of cities with combined sewerage system is presented in the paper. Full-scale sample survey of the territory of the Baltic Sea catchment of the Lviv city allowed to obtain the total area of technical watershed of the Baltic Sea catchment – 40.79 km2. Based on the regression analysis of results of the survey, the power law dependency between the total and effective imperviousness of the catchment is obtained. Weibull model approximation, based on the actual data for the rainfall events in Lviv for the last 20 years, is obtained and can be recommended for the maximum daily rainfall depth estimation depending on the value of the return period. Estimated maximum flow rates of stormwater runoff at the inlet of Lviv WWTP as the function of the return period P in the range of 0.1 yr. to 5 yr. is presented.