Projeto de um sistema de captação e aproveitamento de água pluvial para fins de pulverização agrícola e dessedentação animal.

Abstract

Water is key element to preserving life on Earth. However, the man is, many times, as an inexhaustible well, using it often not rational. Thus it is fundamental and necessary to warn and cause cultural changes, seeking awareness of the population about the rational use of water, avoiding waste. In order to take advantage of rainwater for use in animal consumption and agricultural spraying, aimed to design a catchment and rainwater storage system on a farm. The property in question located in the municipality of Estrela Velha-RS and, although not currently suffer from the lack of water, aims to reduce the cost of tap water and use natural resources more efficiently. Through technical visits the property, estimated the monthly and annual water demand by agricultural activities. We carried out the water balance and obtained result as a reservoir through 9.68m³ Rippl method, choosing then be implanted reservoir 2 with 5 cubic meters each. Calculations of other system components, such as rails, horizontal conductors and vertical conductors disposal reservoir were also performed, and the frequency indication cleaning and maintenance to be done in the system. The estimated implementation cost totaled $ 4658,5 and the payback time on investment (Payback) on 9,7 years with the current price of $ 2,5 per m³ of water charged by the community. With the implementation of system ownership cease to consume network m³ 16 cubic meters of water monthly average, which will help reduce the public water consumption and will eventually serve as a model to be implemented in other properties.