Estudio comparativo de la rentabilidad obtenida en la recuperación de oro a partir de relaves mediante métodos tratamientos químicos y biológicos: el caso de la pequeña minería en el cantón Portovelo de la prov. El Oro. 2018.

Abstract

Abstract:The present study presents the financial evaluation between the methods used for the recovery of gold from tailings in the Portovelo sector in the province of El Oro, analyzing on the one hand the chemical treatment method supported mainly in reagents and cyanide and as an option the method biological that is presented as a friendly alternative to the environment since it uses a biological pre-treatment or biooxidation with the help of native microorganisms; applying financial indicators such as VAN, TIR and BC ratio, it was determined that the biological method presents better performance, reaching 43% higher, and it was concluded that its implementation in the sector is feasible, that its operation can be developed without setbacks with the present resources in the middle being able to support changes in their environment. These results will serve as a reference to demonstrate that there are options for the recovery of gold that are less harmful to the environment and that are financially profitable, presenting an alternative for making decisions to investors who wish to start or companies that prefer to adopt this method.