Aproveitamento de água da chuva para utilização na lavagem de veículos no lava a jato da Universidade Federal do Recôncavo da Bahia

Abstract

The present work aims to analyze the feasibility of implementing a system to capture and use rainwater in the building of the Fisheries and Aquaculture Engineering Nucleus – NEPA , in the city of Cruz das Almas – BA. The capture system deploys the has the f URPOSE, supplying the washing tank jet institution for washing vehicles. First, data were collected for the architectural characterization of the building, the roof's contribution area and calculation of the demand for the car wash. After completion of the hydrological study, based on 20-year historical series, to characterize the rainfall regime and respective intensities. With architectural plans was determined contribution of the areas of each roof, the design of the collection devices, driving, preliminary treatment and storage. following current regulations. Finally, a feasibility study for the implementation of the capture and storage system was carried out using the Rippi and simulation methods. The costs for implementing the system were approximately R$ 54.944,40, and the technical-economic feasibility analysis points to a period of return on investment of around six years. Thus, the value of implementing the rainwater catchment system for non-potable purposes in the NEPA building in Cruz das Almas proved to be economically viable.