The representative sample of low grade sulphide ore gold for this research study comes from the province of Casma Ancash department. The characterization of the sample was analyzed in the polarized light microscope, in the EAP. Geological Engineering at the National University of San Marcos (UNMSM), the results indicated the presence of the following mineralogical species such as Electrum, sphalerite, ilmenite, pyrite, hematite, goethite and bargains. Furthermore we found particles referred to gold, which are: Electrum-goethite, Electrum-Gangas, Electrum-goethite-Gangas. Based on the results of the characterization we realized metallurgical process like preconcentration Falcon performed in the concentrator, the results of the most representative process is 67.80%, obtaining in a granulometry of -200mesh, obtaining a concentrate grade of 16.20 g / TM, 57.04% of 41.60 radio recovery and co...

La muestra representativa del mineral sulfurado de baja ley de oro, para el presente estudio de investigación, proviene de la provincia de Casma, departamento de Áncash. La caracterización de la muestra se realizó en el microscopio óptico polarizado, de la EAP Ingeniería Geológica de la Universidad Nacional Mayor de San Marcos (UNMSM). Los resultados de esta caracterización indicaron la presencia de las siguientes especies mineralógicas: electrum, esfalerita, ilmenita, pirita, hematita, goethita y gangas. Además, en la muestra encontramos partículas entrelazadas referidas al oro, las cuales son: electrum-goethita, electrum-gangas, electrum-goethita-gangas. Según los resultados de la caracterización, se realizaron pruebas metalúrgicas de preconcentración a la muestra, con el equipo de concentración Falcon; los resultados de la prueba más representativa obtenida a una gran...

Electrocoagulation is an electrochemical method to remove contaminants, using an anode and a cathode, where chemical and physical reactions occur, between ions with opposite charge, which facilitates the attraction of the individual particles that form a flocculus with Greater density than the individual particles, being able to decant them spontaneously to form the anodic mud that will be treated like dangerous solid residue. The extraction of mineral concentrates generates effluents and when the variables for contaminated discharges are not controlled, the rivers and the sea are impacted. For hundreds of years, electrocoagulation has been discovered as a treatment for industrial waters and is now taking up the interest of the application of this technology, because of its low cost compared to other technologies. In Colombia this technology is applied in the textile industry in the proc...

La electrocoagulación es un método electroquímico para remover contaminantes, para lo cual se utiliza un ánodo y un cátodo, en donde se producen reacciones químicas y físicas, entre iones con carga opuesta, lo que facilita la atracción de las partículas individuales que formaran un floculo con mayor densidad que las partículas individuales, logrando decantarlas espontáneamente para formar el lodo anódico el cual se tratará como residuo sólido peligroso. La obtención de concentrados de minerales, genera efluentes y cuando no se controla las variables para las descargas contaminadas, los ríos y el mar son impactados. Desde hace centenas de años, fue descubierta la electrocoagulación como tratamiento para aguas industriales y actualmente se está retomando el interés de la aplicación de esta tecnología, por su bajo costo con respecto a otras tecnologías. En Colombia es...

The general objective of this work was to propose an innovative process for the use of statistical quality control (SQC/SQP) in environmental impact assessments (EIAs) that allows improving the evaluation of monitoring data and helping to take measures to reduce the effects of environmental pollution caused by mining activity. The research method was analytical, deductive, and hypothetical, with a type of applied research, an experimental design, a descriptive-interpretive level, and a mixed approach (quali-quantitative). The results confirm that the implementation of SQC/SQP techniques within the EIAs allows identifying the necessary corrective measures, optimizing decision-making, and making the required operational adjustments within the Environmental Management System (EMS). A methodology outlined in a flow diagram is proposed for the monitoring and control of components and pollutin...

El texto completo de este trabajo no está disponible en el Repositorio Académico UPC por restricciones de la casa editorial donde ha sido publicado.

The presence of contaminants such as arsenic and antimony in polymetallic concentrates can lead to economic losses due to penalties imposed in commercialization contracts when the permissible limits are exceeded. For this reason, the present study focuses on supporting the reduction of these contaminants through the application of alkaline leaching using NaOH and Na2S in polymetallic concentrates. Optical microscopy tests indicated the presence of species with a high content of arsenic and antimony known as gray coppers and silver sulfosalts. Based on the mineralogical characterization, it was possible to solubilize 93.79% of arsenic and 96.21% of antimony, in a time of four hours, at a temperature of 100°C, with a dosage of 48 kg/TM of sodium hydroxide and 13 kg/TM of sodium sulfide, at a granulometry of 10% - 37μ. It was achieved to reduce the arsenic grade to 0.45% and the antimony ...

El texto completo de este trabajo no está disponible en el Repositorio Académico UPC por restricciones de la casa editorial donde ha sido publicado.

El texto completo de este trabajo no está disponible en el Repositorio Académico UPC por restricciones de la casa editorial donde ha sido publicado.

In this paper we show an application of Kirchoff ’s laws to the electric networks for the use of the Laplace transform.

Technologies are currently being developed for the treatment of acid mine drains (DAM), rock drainage (ARD) and other industrial effluents, which are causing water and soil contamination. Natural acid drainage is one of the foci of environmental contamination in national watersheds and for this reason it is necessary to search for the appropriate technologies to reduce it to suitable environmental conditions. Environmentally sound technologies protect the environment, are less polluting, use all resources more sustainably, recycle a larger portion of their waste and products, and treat waste more acceptably than the technologies they have come to replace. In the present work we show the experimental study of acid rock tests in percolation columns, in which we try to reproduce what happens in the Peruvian mines, this leads us to simulate the main variables that are involved: feed flows an...

Actualmente se están desarrollando tecnologías para el tratamiento de drenajes ácidos de mina (DAM), drenaje de rocas (ARD) y otros efluentes industriales, que están causando contaminación de aguas así como de suelos. El drenaje ácido natural es uno de los focos de contaminación ambiental de las cuencas nacionales y por ello es preciso buscar las tecnologías apropiadas para su abatimiento a las condiciones ambientales convenientes. Las tecnologías ecológicamente racionales protegen al medio ambiente, son menos contaminantes, utilizan todos los recursos en forma más sostenible, reciclan una mayor porción de sus desechos y productos y tratan los desechos residuales en forma más aceptable que las tecnologías que han venido a sustituir. En el presente trabajo mostramos el estudio experimental de pruebas de rocas ácidas en columnas de percolación, en el cual tratamos de repro...

En este artículo se presenta una aplicación de la transformada de Laplace en la solución de los circuitos eléctricos, calculando las corrientes y los voltajes instantáneos que se presentan en diversas partes de un circuito eléctrico dado.

This research aims to explore possible solutions to the problems presented in auriferous sulfide minerals , which have cianicidas by metals ( Gold companions ) can not be cyanide by high reagent consumption , which makes the process uneconomical . Also be a problem hitting the small domestic mining sites that have these features that can not be traded concentrates by high penalties imposed on them , then creating a social problem that should be taken into account. At the experimental level by testing and subsequent acid leach cyanidation seek to find a process that allows for adequate separation of gold copper and other species also have high technical and economic efficiency. Exploratory tests shown indicate the feasibility of finding the right process for the investigated mineral content has Gold , chalcopyrite , malachite , magnetite , hematite , goethite , covellite , chalcocite , an...

This research aims to explore possible solutions to the problems presented in auriferous sulfide minerals , which have cianicidas by metals ( Gold companions ) can not be cyanide by high reagent consumption , which makes the process uneconomical . Also be a problem hitting the small domestic mining sites that have these features that can not be traded concentrates by high penalties imposed on them , then creating a social problem that should be taken into account. At the experimental level by testing and subsequent acid leach cyanidation seek to find a process that allows for adequate separation of gold copper and other species also have high technical and economic efficiency. Exploratory tests shown indicate the feasibility of finding the right process for the investigated mineral content has Gold , chalcopyrite , malachite , magnetite , hematite , goethite , covellite , chalcocite , an...