Viabilidade técnica-econômica de um sistema de aproveitamento pluvial para fins não potáveis em uma indústria em Tabira - PE

Abstract

Cities are increasingly finding it difficult to guarantee the public supply of drinking water. An alternative to reduce the demand for treated water is the use of the rainwater harvesting system. This work analyzes the economic viability of the implantation of a system of capture, storage and distribution of rainwater in an industry in the city of Tabira-PE. For this, the local rainfall data, the area of contribution and the demand of non-potable water in the building were analyzed in order to size a reservoir and the pluvial drainage facilities. The cost of implementing the system was estimated at R $ 26,662,03. and compared to the annual savings of R $ 4,071.60, brought about by the substitution of potable water by rainwater, results in a return period of estimated investment of 7.8 years. The benefits of such a system are not only financial but also environmental and cultural.