Evaluación del uso de desechos de la industria cerámica para la elaboración de material de confinamiento de relaves sulfurados

Abstract

This study showed how a waste obtained from a ceramic factory can be incorporated in a pasta for sulfurated dross confinement. The sulfurated dross in this study belongs to the sector of Ponce Enriquez in the south of Ecuador. It has a high potencial acid drainage, that would make sulfures and heavy metals flow into the soil surrounded. The pasta contaning the ceramic waste would reduce infiltration to the soil reducing operative costs. The paste was formulated combinig plastic clay and the ceramic waste. The infiltration of the paste were tested in the lab, in a simulator rain. The simulator has a 20 litres capacity and uses Mariot’s principle. All the test took place with a constant rain rate of 30 mm/hour. Infiltration curves were built, for both the sulfureted dross by itself and for the ross coated with the paste. The tendency of the curves and theirs constant value (Ks) decreases with the addition of the paste. In addition , the value of saturation constant was obtained using saturated columns. There was a significant decrease in the infiltration rate, wich demostrate that the paste would confine the sulfurated dross satisfactorily.