Cobertura verde como sistema de reaproveitamento de água da chuva e águas servidas

Abstract

The green areas in urban centers are on the wane. The use of green roof may help this way and bring many benefits to the city and its residents. It provides thermal and acoustic comfort, improves humidity, helps to combat the effect of heat islands, besides aesthetics. It also collaborates with urban drainage, because it minimizes the peak flow that occurs during the rain, as the water is retained on the green cover in order to slow its flow. This study provides the green cover with its layers, to be used as a filtering system for the rainwater and wastewater, thus it is an alternative system for the reuse of water. It is necessary to analyze the properties of water filtered through the roof because the standards require values for pH, turbidity, fecal coliform and residual chlorine in order to reuse the water. These analyzes were satisfactory, the water still requires treatment with the use of chlorine (sodium hypochlorite), but this is a simple and accessible system for everyone . Afterwards, the water is ready for reuse.