Análise técnico-econômico de um sistema de aproveitamento de água pluvial em um estabelecimento localizado no alto sertão alagoano

Abstract

The water is a limited natural resource, precious and essential to life. The humans in the during of his historical process of evolution, responsible for several perceptible environmental impacts that some way threaten life on planet Earth. Among the main concerns is the problem related to water waste. In a tropical country where rainfall is highest, an alternative to this solution is the collection of rainwater, a sustainable solution that contributes to the conservation of water resources, once decreases demand for surface water and groundwater, besides contributing to the rational use of water. Capture and reuse practices are millenarian techniques used in several countries, it is therefore an important strategy to overcome the problems of shortage and promote the economy and the conscious use of this resource. The case study developed in this research aims to present a model of rainwater harvesting and reuse for non-potable purposes in a restaurant, located in the municipality of Água Branca – AL, illustrating an ecologically correct idea, from efficient techniques and in qualitative and quantitative terms and presenting an economically interesting system. The system to be deployed is economically feasible, as it will generate about 50% savings in the water bill monthly, and its payback time was 12.3 years.