Potencial uso das argilas verde e branca como meio filtrante no auxílio ao tratamento de água.

Abstract

Water is a fundamental resource for sustaining life. However, the quality has changed and that for its some additional changes can be made with dry regions in the springs and even more its distribution is irregular, in some communities in Brazil they are even worse in relation, such as rural and isolated communities. In this sense, the objective of this work was to investigate the potential use of green and white clays as a filter medium, through the construction of eleven slow filter prototypes with different arrangements. Slow filtration is an economical and efficient treatment system. Therefore, prototypes were made using green and white clays, and consolidated materials such as sand, gravel and cracks. The clays were analyzed in three different conformations: powder, pellets and spheres. In addition, the clays underwent a heat treatment. Chemical analysis was performed for the elements sodium (Na) and copper (Cu), and physical analysis of apparent color and turbidity. From the results it was found that the conformations of pellets and spheres in relation to the powder material, presented better results. The maximum total removed for sodium (Na) was approximately 168mg/L and for copper (Cu) it was approximately 200mg/L. While for the physical parameters, the sphere conformation stood out, compared to the other conformations, which transmitted color and turbidity to the water. Por fim, foi possível verificar um potencial significativo das argilas comerciais verde e branca, no auxílio ao tratamento de água.