Avaliação de um sistema residencial para coleta de água de chuva

Abstract

For the sustaining human life, water must be drinkable, in other words, it must have microbiological and physicochemical levels that the human body can accept without being submitted to organic imbalances that endanger our health. The demand for water is increasing very fast every decade, specially in domestic, agricultural and industrial uses, and because of it, nature seems not be able to purify it in its cycle. Thus, alternatives are sought to help the environment fulfill this process. The use and reuse of rainwater is being used in order to help nature supplies human needs. Thus, this work aimed the deployment of a system for domestic use and its easy maintenance enabling the use of water for other purposes except for drinking. In order to follow the NBR 15527/2007, related to the consumption of non-drinkable rainwater, was deployed the use of two-layer-filters for fast downward filtering. The results achieved regarded to the collection and reuse of rainwater as an alternative for domestic purposes were satisfactory because decreased in 6m³ the use of treated water. Relating to the characteristics of post-filtration water, it was concludes that the use of pre-storage filter represents positive effects for a higher quality of the collected water.