Análise do sistema de reúso de água na Universidade Federal da Fronteira Sul Campus Cerro Largo/RS

Abstract

Due to population growth, climate change and water shortage, the prudent water resources use has become fundamental. Thus, alternatives have been created for its conscious use, aiming to preserve it to obtain economic, social and environmental gains. Therefore, the water reuse becomes material because it is considered a rational and efficient use, which controls losses and waste and minimizes the generation of effluents. To analyze the water reuse system on a University Campus, this work determined the water consumption and disposal flows, as well as its quality and reuse possibilities. The adopted methodology found the consumption and discharge of water estimates, and also the determination of the required quality of the discarded water. Considering the water demand of the UFFS Cerro Largo Campus, some possibilities of water reuse were evaluated. Knowing that the rainwater flow collection is 184.86 m³/month and the flow of medium quality water discarded by the equipment is 54.6 m³/month, we found a total reuse flow of 7.96 m³/day. The finding was that the reuse of medium quality water disposed in laboratories, in systems with low water quality requirement in the building A, was the most technically and economically viable possibility.