Resumen

ZAMORA E., Gerardo  y  HINOJOSA C., Octavio. Economía circular en minería - caso de estudio: producción minera de Concentrados de Pb-Ag-Zn en Bolivia. REV. MAMYM [online]. 2019, vol.4, n.1, pp.03-17. ISSN 2519-5352.

Abstract In the context of the circular economy, mining companies must develop their extractive processes not only protecting the effects of negative impact on the environment generated by each of the unit operations of the extractive process; but also, creating innovative solutions that allow reducing the consumption of water and energy; but also, trying that the waste generated be reused in the closing of the mining operation; thus allowing a clear economic, social and environmental benefit for the mining industry. In this context, the present research work presents a limited proposal in the mining exploitation of Pb-Ag-Zn complexes, under the circular economy model that allows, through an integral management of both the mining waste generated in the stage of exploitation, as well as the organic waste and wastewater generated in the mining camps. as well as the use of the soils of the mining sector, not only to reduce the consumption of water and energy in the operation, but to decrease the costs related to the environmental closure of the final disposal sites for tailings and tailings generated in the mining operation. The proposal deals in a first stage, the selective separation of the clearings generated in the open-pit exploitation based on its possibilities of generation of acid rock drainage; in addition, in a second stage, the desulfurization of the tailings of the flotation process by spirals, in order that the non-sulfurized product of this process, be used as a dry cover, after deslame, in the closure of both the tailings disposal site like the one of despetes; in addition, of being used also for the conformation of artificial top soil, together with the compost generated from the organic matter of the residues of the dining room of the mining camp and the sludge of the treatment process of the treated residual waters. Likewise, the use of treated wastewater for the flotation stage of minerals.

Palabras clave : Circular Mining Economy; Desulfurization; Environmental Closure; Compost for Dry Covers.

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