Uso de sementes de Moringa oleifera na eficiência da filtração lenta direta e da sedimentação para tratamento de águas superficiais.

Abstract

The paper has as main purpose to evaluate the use of natural coagulate, obtained from Moringa oleifera seeds and their efficiency in the Slow Direct Filtration and Sedimentation processes for the treatment of highly turbid water. In countries in development process as Brazil, technologies for water treatment must provide people who lives in needed regions of drinkable water the possibility of water purification, in an easy, self-maintainable and free of charge way. Referred studies so far suggest that there is application potential of Moringa oleifera. In the water treatment with Slow Direct Filtration it is used a flocker composed by Pet bottle and three filters also composed by Pet bottle with non-weaved synthetic blanket that are used in the slow filtration, with a discharge of affluent water to the filters of approximately 4 m3/m2 daily. In the water treatment process evaluating the Sedimentation efficiency it is used a flocker composed by Pet bottles and a Sedimentation tank. The hardwater utilized in the realization of experiments is the synthetic water obtained by Bentonite, which presents adequate qualitative characteristics to the analysis.