SISTEMA DE APROVEITAMENTO PLUVIAL PARA FINS NÃO POTÁVEIS EM UMA RESIDÊNCIA FAMILIAR DE BOA ESPERANÇA EM MINAS GERAIS

Abstract

The excessive use of water and the increase in world population indicate a possible water shortage in the future, even in countries with abundant drinking water, a problem that demands special care from governments around the world, the need to preserve this finite natural resource has become the focus of the development of rational alternatives for available water resources. One of these alternatives for the conservation of drinking water is rainwater harvesting, this activity basically consists of collecting rainwater and storing it in tanks so that it can be used in domestic and/or industrial activities for non-potable means, such as washing the external area, unloading, among others. Taking this into account, the objective of this work was to analyze the feasibility of implementing a rainwater catchment system in a residence in the city of Boa Esperança, Minas Gerais. For this, a case study was developed in a single-family house, where a roof water collection system was proposed with a non-water use demand of two hundred liters per day. For the implementation of the projected system, the investment would be around R$ 8.234,39 reais, the annual volume of water collected will be approximately 54,000 liters, generating annual savings of R$ 279 in the water bill. The installation of the system is not a viable option from a financial point of view because the period for the system to pay for itself is 29 years, but if we think about its benefit for the environment, the system is viable at any cost, since the drinking water savings are real, and help preserve water for future generations.