Filtro gravitacional com carvão de bambu para águas pluviais: um estudo de caso da UTFPR-PR

Abstract

The main objective is to build bench-scale gravitational filters for the treatment of rainwater, composed of five layers, including a layer of bamboo charcoal. Bamboo was chosen because it is an abundant plant in the tropics and available throughout the Brazilian territory. The bamboo charcoal used in the filters was produced from the culms of the Dendrocalamus asper species, also known as giant bamboo. In this study, the quality of rainwater collected from the cisterns at UTFPR-PB was evaluated before and after the filtration process. Additionally, filter design parameters, material selection, thickness of the filtering layers, dimensions, and filtration time were studied. The developed modular filter has controlled parameters such as the thickness of the different layers. The bamboo charcoal filter eliminated the presence of the E.coli bacteria, total coliform indices, and was successful in reducing turbidity. Thus, it demonstrated efficiency, and the final filtered water met the potability standards required by the Ministry of Health and showed great potential for applications at other scales.