Rainwater harvesting system in a single-family residence in Pesqueira - Pernambuco

Abstract

Due to water scarcity and various social problems caused by lack of access to water, it is clear that the population needs sustainable alternatives to remedy such failures. In this context, in order to emphasize the doctrine on the subject and highlight the importance of reuse water for the preservation of water resources for future generations, this article has as its guiding question: the use of a rainwater harvesting system presents economic, technical and environmental viability? Therefore, the objective is to present a proposal for a rainwater harvesting system in a single-family residence located in the city of Pesqueira, State of Pernambuco. The methodology was based on carrying out calculations of varied dimensions, which pointed out as a result the fact that the total volume was necessary to meet the reuse demands, being determined through the sum of the garden volume, garage volume and discharge volume of the residence. Finally, it was concluded that, in relation to the capture of rainwater through the roof of the studied building, it was possible to partially minimize flooding, as well as the reduction in the use of potable water provided by the concessionaire, making the project economically and environmentally viable at city of Pesqueira PE. In addition, it was found that there was a saving of 213.9775 L per day in the use of clean water through the use of the referred system, which generated a positive impact on the monthly value of the concessionaire’s water tariff.