Simulação hidráulica de sistema do abastecimento de água e da rede coletora de esgoto sanitário do distrito de Taquara do Reino em Ibiporã - PR

Abstract

The universalization of access to basic sanitation services, established by Brazil’s New Legal Framework for Basic Sanitation (Law No. 14.026/2020), requires efficient technical solutions to overcome operational challenges and achieve the goals of 99% water coverage and 90% sewage coverage by 2033. In this context, this study evaluated the Water Supply System (WSS) and Sewage System (SS) of the Taquara do Reino district (Ibiporã-PR, Brazil) using hydraulic modeling supported by the softwares EPANET and SWMM. For the WSS, three pumping scenarios were simulated to optimize pressures (following NBR 12.218/2017) and energy costs. For the SS, the network was analyzed under two scenarios (dry and rainy weather) to verify compliance with NBR 9.649/1986. The results demonstrated that: (i) in the WSS, the scenario with a frequency inverter reduced daily energy costs by 30% while maintaining pressures between 10 mca and 40 mca (meters of water column), in line with technical recommendations; (ii) in the SS, although flow velocities and water depth ratio (Y/D) met the standards, 17.3% of sections in dry weather and 13.3% in rainy weather exhibited shear stress below 1.0 Pa, indicating risks of clogging.