Análise do custo de implementação de um sistema de coleta e uso de água pluvial residencial na cidade de Ubá-MG

Abstract

Due to the rain scarcity in the southeastern region in Brazil from 2014 to 2015, the State of Minas Gerais suffered a supply crisis that affected several municipalities in the region. According to COPASA on February 2015, the Paraopebas system, which supplies the Metropolitan Region of Belo Horizonte, has operated with 30.25% of its capacity. Just three of the reservoirs that make up the system, the one that has presented the worst condition was the Serra Azul, which stands at only 5.73% of its volume, operating on its dead volume. The cities in Minas Gerais interior also went through rationing, causing problems to the commerce and local industries, besides leaving many families in constant alert. The water crisis that the country faces is promoting the adoption of other possibilities of water consumption, such as the drilling of artesian wells. However, we need to adopt sustainable measures which avoid wastage of resources and minimize the environmental impacts associated with extracting water from the groundwater. The goal of this study is to verify the potential of water saving obtained through the implantation of a rainwater harvesting system in a residence and to elaborate a cost-benefit study in the implantation and use of the system.