Predicción y estudio de drenaje ácido de mina sobre mineral de escombrera

Ana Alicia Senese Leiva; Negrelli Negrelli; N. Hidalgo

doi:10.17533/RCM/udea.rcm.n18a01

Authors

Ana Alicia Senese Leiva National University of San Juan
Negrelli Negrelli National University of San Juan
N. Hidalgo National University of San Juan

DOI:

https://doi.org/10.17533/RCM/udea.rcm.n18a01

Keywords:

pyrite, acid, pH, heavy metals

Abstract

Acid drainage is the result of the natural oxidation of sulphurminerals contained in rocks, one of them being pyrites,which havebeen exposed to moisture and oxidizing conditions, which generates a reduction in the pH of the infiltration water and leaching of metals. The objective of this work was to evaluate and predict the possible generation of acid mine drainage and determine the presence of metal leaching from three mineral samples identified as ME-1. ME-2 and ME-3 coming from a dumplocated on the geographical limit between Argentina and Chile, which occupies about 150 hectares which comes from an exploitation of copper. The tests were carried out in two stages, the first one consisted of predicting the possible formation of acid drainage of the samples under study based on static tests known as Acid-Base Balance, while in the second stage dynamic testswere applied by means of a wet cell test determining the water quality based on the mobility of metallic elements and the pH. It was determined that the samples ME-1 and ME-2 would be possible acid generators due tothe low neutralization power, while the results forME-3 indicated to be a sample with potential to generate acid uncertain. In the leachates of the samples no heavy metal content such as Cr Pb and Cd are reported. The As and Hg are found in ppb values and other heavy elements in the order of non-detectable.

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Author Biographies

Ana Alicia Senese Leiva, National University of San Juan

Engineer, National University of San Juan, Mining Research Institute, Faculty of Engineering, San Juan, Argentina.

Negrelli Negrelli, National University of San Juan

Geologist, National University of San Juan, Mining Research Institute, Faculty of Engineering, San Juan, Argentina.

N. Hidalgo, National University of San Juan

National University of San Juan, Mining Research Institute, Faculty of Engineering, San Juan, Argentina.

References

F. T. Valencia Guaricela, L. A. Songor Carrión, “Estudio del mecanismo de generación de drenaje ácido en materiales de concentración del proyecto Río Blanco”, Tesis de Ingeniería, Facultad de Ciencia y Tecnología, UDA, Cuenca, EC, 2020.

T. Volke Sepúlveda, J.A. Velasco Trejo, “Tecnologías de remediación para suelos contaminados” in: Semarnat/INE, México DF, pp.21, 2002.

K.A. Natarajan, “Microbial aspects of acid mine drainage and its bioremediation”, Trans. Nonferrous Met. Soc. China, vol. 18, pp.1352-1360, December, 2008.

J. R. Postgate, “Recent advances in the study of the sulfate-reducing bacteria”, Bacteriol. Rev., vol 29, no 4, pp. 425-441, December 1965.

O. Aduvire, “Plan de cierre y tratamiento de aguas ácidas mina”, presentado en: Instituto de Capacitación Minera del Perú, Lima, PE, 2006.

L.T. Chaparro, “Drenajes ácidos de mina. Formación y manejo”, Revista ESAICA, vol.1, no.1, pp. 53-57, 2015.

B. Dold, “Basic Concepts of environmental geochemistry of sulfide mine waste”, in: Mineralogía y Geoquímica Ambiental Mineras, ES, 2010, pp.37.

G. A. Palma Huilca, “Evaluación del funcionamiento de un biorreactor pasivo utilizando bacterias sulfato-reductoras para el tratamiento de drenajes ácidos de mina”, Tesis de Ingeniería, Escuela Profesional de Ingeniería Ambiental, UNSA, Arequipa, PE, 2018.

N. Pérez, A. Schwarz, H. Urrutia, “Tratamiento del drenaje ácido de minas: estudio de reducción de sulfato en mezclas orgánicas”, Tecnol. y Cienc. del Agua, vol. 8, no.1, pp.53-64, 2017.

A. Akcil, S. Koldas, “Acid mine drainage. Causes. Treatment and case of studies”, J. Clean. Prod., vol 14, no 12-13, pp. 1139-1145, 2006.

R. Brugam, J.B. Stahl, “The potential of organic matter additions for neutralizing surface mine lakes”, Trans Ill State Acad Sci, vol. 96, no. 2, pp.127-144, 2000.

E. Gómez Juárez, “Síntesis, Caracterización y Evaluación electroquímica de un Inhibidor de Corrosión Zwitteriónico para procesos de Extracción de Petróleo”, Tesis de Ingeniería, Escuela Superior de Ingeniería Química e Industrias Extractivas, IPN, Ciudad de México, 2016.

Pan American Silver Corp’s, PORTADA CONTENIDO RESUMEN TESIS LLUVIA [online], http://tesis.uson.mx/digital/tesis/docs/20605/Capitulo2.pdf [Accessed: 06-Jul-2021].

O. Aduvire, “Técnicas de prevención y control de la generación ácida en minería”, REV. MAMYM, no.4, pp.24-31, 2018.

HONORABLE CONGRESO DE LA NACION ARGENTINA, LEY 24.585, disponible, “De la actividad minera-Impacto ambiental”, disponible en: https://www.entrerios.gov.ar/ambiente/userfiles/files/archivos/Normativas/Nacionales/ Ley%2024585_Act_Min_EIA.pdf

E. Michalkova, M. Schwarz, P. Pulisova, B. Masa, P. Sudovsky, “Metals recovery from acid mine drainage and possibilities for their utilization”, Pol. J. Environ. Stud. ,vol. 22, no. 4, pp.1111-1118, 2013.

B. Plante, B. Bussière, M. Benzaazoua, “Lab to field scale effects on contaminated neutral drainage prediction from the Tio mine waste rocks”, J. Geochem. Explor., vol 137, pp. 37-47, February 2014.

W. A. Price, “Prediction Manual for Drainage Chemistry from Sulphidic”, The Mining Association of Canada, MEND Report 1.20.1, 2009.

J. Llamas, “Aspectos físico químicos de la acidificación y su evaluación en aguas y suelos”-In: Escuela Técnica Superior de Ingenieros de Minas y Energía, Madrid, Es, 2002, pp.24.

Y. N. Mata, F. González, A. Ballester, M. L. Blázquez, J. A. Muñoz, “Inhibition of acid rock drainage from uranium ore waste using a conventional neutralization and precipitation treatment”, Miner. Eng., vol. 15, no 12, pp.1141-1150,2002.