Potencial de captação de água da chuva no Colégio Estadual do Campo Dom Pedro II no município de São Miguel do Iguaçu - Paraná

Abstract

Considering the growing of the demand for drinkable water and that this is a finite and essential blessing to insure all forms of life, it became necessary to seek for ways to ensure your quality and availability. In this context the rainwater is an ally, since even without treatment can be used for plenty activities, however, it is a blessing wasted by the majority population. This study evaluated the potential of capturing rainwater in Colégio Estadual do Campo Dom Pedro II, a school located in São Miguel do Iguaçu, in the west of Paraná. Aimed to provide support then in the future the unit implants a system to capture rainwater to reduce the use of drinkable water for activities where it isn’t needed. First it was calculated the annual and monthly average of the rainwater, based on historical series of ten years in the region, finding an annual amount of 1650.28 mm. Right after it was calculated the total potential of catchment, which considered all the covered area of the structure, achieving the result of 2.464,68 cubic meters annually. The partial potential, which considered the roofs that are served by rails already installed, totalized 998.58 cubic meters annual. After, these values were related to the average precipitation and scaled up the system to capture rainwater compatible with the demands of the School. After the analyzing of these data it was concluded that the partial area is enough to support the consumption in the unit, since the year of higher demand was in 2012, which totalized 977 cubic meters. Based on this area it was dimensioned the volume of the reservoir based on 4 methods proposed by NBR 15,527. In order to define the volume of the reservoir, it was the used the result obtained by the Rippl method. Based on the studies used as reference for developing this work, it was checked that these systems after implanted in their entirety are effective in reducing of spending on drinkable water. It was concluded that, to install a project of rainwater catchment is viable in the economic and promotes environmental sustainability.