APROVEITAMENTO DE ÁGUA PLUVIAL PARA O CENTRO MUNICIPAL DE EDUCAÇÃO INFANTIL (CMEI), EM TRÊS PONTAS, MG.

Abstract

The rainwater harvesting system is a mechanism capable of capturing and storing rainwater from a coverage area and contributes to the preservation of the environment, mitigating flooding and combating water shortages. The present work has the objective of elaborating a project of the rainwater capture, storage and utilization system for the Municipal Center of Early Childhood Education (CMEI), in the city of Três Pontas - MG. In order to reach the objective of this work, it was necessary to search the current technical and normative literature. Then, determine the supply and demand flows of rainwater that will be used in the project. For this purpose, it was necessary to obtain data as historical series of rainfall to allow the characterization of the amount of rainfall in the studied region; diagnose the dimensions of the building's coverage and determine the number of users. With the data, it was possible to calculate rainfall intensity, coverage area, project flow, estimate non- potable water consumption, gutters, conductors, rainwater volume, lower reservoirs and the lifting system and the distribution network. After this, the project of capture and distribution was carried out in addition to the quantity of materials and estimated costs of the entire system, totaling a value of R$49.142,97 and can be recovered in a return period of 75 years. The elaboration of the project fulfilled its objective of reducing the use of drinking water for purposes that do not lack this quality and enables the rational use of this natural resource.