Integrated Stormwater Management in Multifamily Housing Development: Casa Nordeste 1.0 Experiment

Abstract

The increasing demand for water supply in large urban centers is destabilizing the hydric network connected to them. In this scenario, rainwater shows itself as a valid alternative source to supply the needs of this good. However, these alternative systems are proving difficult to implement, considering the current vertical density. The objective of this work was to analyze at a projectual level the operational, social and economic viability of an integrated rainwater reuse management model in the context of an evolving multifamily housing complex, composed of technologies previously developed by researchers and applied in the experiment CASA NORDESTE 1.0. As a result, the integrated system allows the optimization of the technologies in harmony with the building structure, saving of R$ 163.00 per month, considering a usable volume of 42,6 m³/month, then reducing local economic demands, allocation and energy. Finally, the project presents the potential viability in metropolis with problems of population density, urban drainage and water stress, besides presenting an evolutionary dynamics that can be expanded or suppressed according to the demand.