Identificación de potenciales contaminantes en los pasivos ambientales de la mina Sol de Oro de Nasca - 2023

Abstract

de Nasca-Ica a escasos metros del paso de la Carretera Interoceánica. Este pasivo ambiental se estima en un millón de toneladas, apilados en la superficie, ocupando un área aproximada de 175000 m2 y alcanzan un aproximado de un millón de toneladas. Se hizo muestreo sistemático, con una población de 49 pozas en las que se encuentran distribuidas estos relaves y como muestra el composito de 44 pozas muestreadas de acuerdo a los cálculos estadísticos para tamaño de muestras, y fueron analizadas mediante técnicas de ICP-OES y los resultados contrastados con los LMP de la legislación peruana; considerándose radicales como el de cianuro y elementos como As, Cd, Cu, Fe, Pb, Zn, y Hg. Los resultados reportan una concentración de cianuro total de 1.3 ppm y Arsénico 230 ppm, Cadmio 0.74 ppm, Cobre 570 ppm, Plomo 150 ppm, Zinc 220 ppm y Mercurio 0.3 ppm. Que en conclusión califican como potenciales contaminantes ambientales, que representan un serio riesgo para el ambiente y el ser vivo.

----- The objective of the present study is to identify the potential contaminants contained in the gold mineral processing tailings of the Sol de Oro mine. The research is quantitative, descriptive level and non-experimental in design. The accumulated tailings of the Sol de Oro mine are located 12 km from the city of Nasca-Ica, a few meters from the Interoceanic Highway crossing. This environmental liability is estimated at one million tons, stacked on the surface, occupying an approximate area of 175,000 m2 and reaching approximately one million tons. Systematic sampling was done, with a population of 49 pools in which these tailings are distributed and as shown in the composite of 44 pools sampled according to statistical calculations for sample size, and were analyzed using ICP-OES techniques and the results contrasted with the LMP of Peruvian legislation; considering radicals such as cyanide and elements such as As, Cd, Cu, Fe, Pb, Zn, and Hg. The results report a total cyanide concentration of 1.3 ppm and Arsenic 230 ppm, Cadmium 0.74 ppm, Copper 570 ppm, Lead 150 ppm, Zinc 220 ppm and Mercury 0.3 ppm. Which in conclusion qualify as potential environmental contaminants, which represent a serious risk to the environment and living beings.