THE USE OF SWMM SOFTWARE FOR THE MANAGEMENT OF SUSTAINABLE URBAN DRAINAGE

Abstract

The present work presents a study performed in the hydrographic basin of the Figueira Stream located in the city of Umuarama-PR, with the intention of reducing surface runoff and expanding the storage of urban waters to minimize the current environmental problems, such as silting and erosion. The main objective is to implement LIDs (Low impact development) devices known in Brazil as low impact urban development and with the help of the Storm Water Management Model - SWMM software, to simulate the behavior of urban waters considering the real situation and comparing them with the simulation with insertion of LIDs. As a methodology, an in loco survey was performed, followed by two simulations. The first simulation considered the data from the in loco survey. We observed that the basin is not prone to flooding, but there is a great possibility of erosion and silting. In the second simulation, we inserted three types of LIDs: filtration basin; porous pavement and infiltration valleys. The data was analyzed and the behavior of urban waters was compared. Our study observed an improvement in water balance and flow propagation. Finally, we understood that with the implementation of the LIDs the results generated were satisfactory, in the sense of providing solutions to improve the environmental problems installed in the basin, consequently promoting improvement in the quality of urban life.