Bibliographic citations
Zarate, R., (2022). Diseño y construcción de un molino de bolas para estabilizar mercurio metálico en el marco del Convenio de Minamata [Universidad Nacional Agraria La Molina]. https://hdl.handle.net/20.500.12996/5319
Zarate, R., Diseño y construcción de un molino de bolas para estabilizar mercurio metálico en el marco del Convenio de Minamata []. PE: Universidad Nacional Agraria La Molina; 2022. https://hdl.handle.net/20.500.12996/5319
@misc{renati/246230,
title = "Diseño y construcción de un molino de bolas para estabilizar mercurio metálico en el marco del Convenio de Minamata",
author = "Zarate Sulca, Reider Benigno",
publisher = "Universidad Nacional Agraria La Molina",
year = "2022"
}
The present research carried out the design and construction of a ball mill with the main objective of efficiently stabilizing metallic mercury as mercuric sulfide, so it can be safely disposed in a security landfill, decreasing its impacts on human health and the environment. For the mill design, the maximum quantity of mercury to be stabilized was estimated; the most appropriate milling equipment was selected; the mill was sized, and the proper operation parameters were identified. The quantity of mercury offered per year was estimated at 282 tonnes based on the analysis of the three main sources of generation residual mercury: large-scale mining, confiscated from smuggling mercury and the mining production potential. The grinding equipment was selected based on a comparative analysis of costs and technology among the most common crushing and grinding equipment on the market, resulting in the ball mill as the optimum. The mill dimensions were estimated from the criteria established for the calculation of the total charge of the material, which included a charge/ball ratio of 1/10, a maximum charge capacity of 25% and a reaction between sulfur and mercury under stoichiometric conditions. The operational parameters such as rotation speed, temperature, pressure, and time were estimated based on the criteria proposed by several authors who have carried out similar experiences with successful cases. Three stabilization tests were carried out, and the mill efficiency was determined by TCLP tests. The preliminary results showed mercury concentrations in the leached ranging from 0.082 and 1.633 mg/L, which concludes that the mill designed and built under the estimated and calculated parameters has a good potential to stabilize metallic mercury.
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