Uso de águas pluviais e residuais em instalações prediais: subsídios para gestão ambiental em prédios públicos

Abstract

The objective of this work was to demonstrate the importance of implementing technologies for reuse of water in the system of building installations. Was evaluated the potential of rainwater harvesting and the drains of air conditioners for non-potable use of building, aiming to supply part of the requirements of this resource. With an estimated demand use of the treated water which could be substituted for reuse, the coefficient of surface runoff of the roof, and the simulation calculation of the reservoir, one can determine the system's efficiency. Thus, was verified that the captured volume is enough for attend the demand of water that can be replaced in one of the units studied, and in some months of the year occurs overflow, which in turn can be used in other activities. The amount of volume produced by air conditioners was estimated by the water collected in certain equipment, and the results of the samples showed that they produce enough water to use, however, are discarded not profitably. In this context, it was demonstrated that there is viability in the water drained by the use of air conditioners, and is justified the implementation of this system mainly in buildings that work with such equipment. Finally, it is concluded that the adoption of practices that seek the rational use of water as the reuse is of fundamental importance, for besides the environmental issue, the government should adopt a strict posture in order to make efficient use of this resource in their buildings through proper management of consumption.