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Filtros para Água para da Chuva: Análise de Eficiência


Journal: Engenharia Ambiental : Pesquisa e Tecnologia
ISSN 1678-2178

Volume: 7;
Issue: 4;
Start page: 211;
Date: 2010;
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Keywords: rainfall | filter material | geotextile | polyurethane sponge

The improper use of water in the world today is a constant concern, too much drinking water is wasted for certain purposes could be used water not potable, but yes, good clean water and rainwater. An alternative to using rainwater with higher quality is to filter it in sand filters. The objectives of this study were: (a) estimate the maximum flow of three different kind of filters, (b) determine in laboratory the effectiveness of the three different compositions; (c) compare the efficiency of the three filter systems to retain solid waste present in rainwater, allowing the improvement of its quality . The experimental work was conducted at the Laboratory of Environmental Engineering Center Franciscan University using as a sand filter a water tank of 250 liters with filter materials such as gravel, sand, geotextile and polyurethane sponge. Results obtained by the filters designed for filtration of rainwater flows were 11,800 L. h-1 (filter 1), 630 L. h-1 (filter 2) and 9300 L. h-1 (filter 3). Filter 2 showed a improved efficiency comparison between the filters, but also lower flow rate.
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