Análise da viabilidade técnica para implementação de um sistema de aproveitamento de águas pluviais no Shopping da Vila em Delmiro Gouveia - AL

Abstract

Water scarcity is an increasingly worrying problem, especially when you think about future generations. In view of this, the reuse of rainwater is a great alternative and sustainable source that helps to minimize the waste of drinking water in places that do not need this type of use. This study sought to analyze the technical feasibility of implementing a rainwater reuse system in a mall located in the city of Delmiro Gouveia, in the highlands of Alagoas, Brazil. Local rainfall data, the water collecting area, estimated average monthly consumption, suggested areas where water can be reused (flushing toilets and urinals, irrigation of outdoor gardens), calculated the volume of the reservoir using two methods and finally compared the volume of water captured with the volume consumed at the reuse points. The results showed that although monthly consumption at the suggested reuse points is higher than the volume captured, the system contributes to a reduction of up to 70% in relation to annual consumption at these points. Consequently, it also reduces the use of drinking water and the amount paid to the water utility, and if applied in conjunction with the reuse of gray water, which is already done on site, it can have an even greater reduction.