ESTUDO DE CASO: Projeto de um sistema de captação e aproveitamento de água pluvial, do Salão do Reino das Testemunhas de Jeová, localizado no município de Paraguaçu-MG

Abstract

Rainwater harvesting and utilization systems are devices with great capacity to alleviate floods in urban centers, to combat water shortages and to reduce financial expenses, as well as contribute significantly to the preservation of the environment. Thus, the present work has as main objective, to present a project of capture and use of rainwater for the religious building of the Kingdom Hall of Jehovah's Witnesses church, located in the municipality of Paraguaçu-MG. In order to prepare the project, it was necessary to conduct research to obtain data corresponding to historical series of precipitation that allowed the characterization of the region's rainfall regime. Subsequently, values were collected referring to the dimensions of the building and its coverage. Also, the information related to the number of people using the building and the amount of drinking water consumed every day was found. Thus, the calculations of all the elements of the system were started, where the precipitation intensity, the contributor area, the project flow, the estimation of drinking water consumption, the estimation of non-potable water demand, drinking water saving estimation, gutters, vertical conductors, horizontal conductors, the usable volume of rainwater, the lower and upper reservoirs, the lifting system and the distribution network. In this way, after carrying out all the system design, it was possible to develop the quantitative survey and the cost estimate, where it is estimated that for the execution of the project for the use of rainwater for the building under study, approximately R$ 37,352.16, which will be recovered in a 52 year payback period.