Eficacia de la Persea Americana y Coffea Arabica en el tratamiento de aguas ácidas de un efluente minero

The objective of this research is to determine the effectiveness of Persea americana and Coffea Arabica in the removal of Zn, Cu, Fe from a mining effluent located in the town of Algamarca. The purpose of using these emerging technologies is due to the low cost, high efficiency in the adsorption of metals present in the water; for their physical and chemical properties that they present. Firstly, it began with the characterization of the in-situ parameters, obtaining an initial pH of 2.08; later without treatment obtaining the following results copper 19 ppm, Zinc 11.65 ppm and Iron 5.8 ppm. By performing three treatments with doses of 10 and 20 grams of Persea americana and Coffea arabica, optimal results were obtained. When the proportions of coffee mucilage were applied for 20 g and in 3 hours of sedimentation. In the case of copper with treatment of 20 g of the combined sample, it was possible to reduce 84.47%; for Zinc with 20 g of coffee mucilage of 74.68% %, for the treatment of both biomasses in proportions the reduction was 86.52% copper and for Iron 98.79% reaching a pH of 6.12. With this we are proposing complementary treatments for the reduction of metals in mining effluents.