Análise de viabilidade econômica do sistema de reúso de águas cinzas no setor hoteleiro

Abstract

The hotel industry has been experimenting for some years with the adoption of new technologies in order to comply with environmental sustainabilitystandards. At the same time, water scarcity in urban centers, due to environmental and management problems, heightens the need for rational use of water. An alternative is the reuse of water. This work aims to show technical and financial aspects of the application of gray water reuse systems in hotels. It was verified, based on the literature, that for the implantation of a gray water reuse system it is necessary to use effluent collection pipes and treated volume distribution, separated from the others. In addition, compact equipment has been found on the market to provide adequate levels of treatment, easy maintenance and low leasing space. In the cases analyzed, it was possible to observe, for the first, an economy of 39.7% in relation to the total water consumption, and for the second, of 29%. Thus, it is important to point out the importance of the public authorities to adopt technical and fiscal incentives for the adoption of reuse systems in the hotel sector, as a means of disseminating the application of the rational use of water and confirming that the developers and entrepreneurs of the continue to invest in water reuse systems.