Saneamento sustentável para o Residencial Pitanga I

Abstract

The Reserva da Pitanga I residential complex in Igarassu, Pernambuco, faces serious sanitation problems resulting from the overloading of the sewage system due to improper connections of rainwater drainage, entry of sand and solid waste, as well as constant leaks of treated water, which result in flooded streets, foul odors, and risks to public health. This reality highlights the need for sustainable solutions capable of offering more effective alternatives than conventional methods. This study aimed to propose nature-based solutions for the requalification of the residential complex's sanitation system, focusing on urban drainage, sanitary sewage, and water loss control. The methodology involved field inspections and documentary research, combining quantitative and qualitative approaches. The results indicated that Nature-Based Solutions (NBS), such as rain gardens, permeable pavements, constructed wetlands, ecological septic tanks, and floodable squares, have the potential to reduce surface runoff by 35% to 70% and increase infiltration capacity by up to 300%, contributing to mitigating flooding and network overload. The comparative analysis also demonstrated economic viability, with an estimated reduction of up to 40% in maintenance costs when associated with community participation. It is concluded that NBS are technically applicable to the studied context and represent a sustainable, replicable alternative aligned with public policies on sanitation and urban planning, reinforcing the importance of integrating green infrastructure and social management of the territory.