APROVEITAMENTO DE ÁGUAS PLUVIAIS: Desenvolvimento de projeto para a Escola Municipal Antônio de Pádua Amâncio

Abstract

The improper use of drinking water has been causing scarcity of this resource in several regions of the country. This fact promotes sustainable ideas and techniques that enable the preservation and rationalization of this water resource. The utilization of rainwater consists of the capture of rainwater through the impermeable areas, which is transported and stored in a reservoir, from where it can be used in activities that do not require drinking standards. The main objective of this work was to scale the rainwater harvesting system to the Municipal School Antônio de Pádua Amâncio, located in the municipality of Varginha. In the diagnosis made during a visit to the school, the absence of vertical gutters and conductors was verified, both scaled so that the capture could be performed. Analyzing the values of monthly water consumption at school (for sanitation, irrigation and sanitary basins) and determining the volume of available rainwater abstraction as a function of the coverage area and the rainfall index, the reservoir was measured using the Rippl method store water throughout the year. It was also dimensioned the grinder, lifting system, upper tank in function of the daily demand and the cold water pipe to supply the points of use. Making financial viability through the quantitative budget worksheet and estimated potable water savings, a return period of 9 years was verified, being considered not financially feasible, but with a great socio-environmental impact when applying this technique in a school, since it will provide awareness of the rationalization of water to students, parents and teachers.