APROVEITAMENTO DE ÁGUA DE CHUVA E REÚSO DE ÁGUA CINZA EM RESIDÊNCIAS: REDUÇÕES NO CONSUMO DE ÁGUA POTÁVEL NO DISTRITO FEDERAL
DOI:
https://doi.org/10.46421/sispred.v4.8201Keywords:
Rainwater harvesting, Greywater reuse, Residential buildings, Potable water consumption reductionAbstract
The study analyzes the potential for reducing potable water consumption by adopting rainwater harvesting (RWH) and grey water reuse (GWR) systems in residential buildings in the Federal District. Simulations based on representative water consumption models for different household income levels were carried out to estimate their potential for reducing potable water demand. Results indicate that high-income households can achieve savings of up to 229 m³/household/year by using rainwater and 164 m³/household/year by reusing gray water. In multi-family buildings, the use of rainwater proved to be viable only for external uses, such as washing floors and irrigation. The study highlights the importance of implementing RWH and GWR systems as a strategy for the sustainable management of water resources, especially in contexts of scarcity and pressure on centralized supply systems. It also highlights the importance of considering the socio-economic and typological characteristics of buildings when defining decentralized solutions, in order to increase the efficiency and viability of these technologies.
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