Dimensionamento e análise de viabilidade econômica de sistema de coleta de águas da chuva

Abstract

In order to preserve water resources, several alternative sources of water have been used to meet the demands of human activities. The reuse of rainwater for non- potable purposes is a measure that has been widely accepted, due to the simplicity of application of the collection and storage system. Considering the importance and interdisciplinarity of sizing and economic feasibility analysis for implementing a rainwater collection system for non-potable purposes, the research adopts no approach that combines technical and economic analysis methodologies. The technical approach is based on 3D modeling of the system based on the sizing and determination of the hydraulic components that make up the set, as well as the definition of the implementation costs of each structure that makes up the system, while the economic analysis reveals the time required for the return on investment When compared to the savings in monthly water costs. In this way, it is possible to verify that the system, when implemented for the purpose of reusing non-potable water, in fact tends to be not viable from an economic point of view. The fact is that the return on investment required to implement the structures that comprise the system When compared to the savings that the system generates is around 64 years.