GEOCHEMICAL MODELING OF ABANDONED SULFIDIC FLOTATION MILL TAILINGS: THE CASE OF KIRKI, NE GREECE

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Published: Jul 28, 2016
DOI: https://doi.org/10.12681/bgsg.14300
Keywords:
Acidic surface waters secondary minerals geochemical modelling
S. Triantafyllidis
Abstract

The Kirki flotation plant is located approximately 5 km south of the Agios Filippos open pit mine (Thrace, NE Greece), and unconfined mill tailings are exposed to atmospheric conditions. Rain water accumulates on the surface of the tailings and interacts with the solids, resulting in highly acidic and oxidative surface solutions with increased heavy metal content. The tailings material is dominated by gangue minerals with very low acid buffering capacity, including quartz, kaolinite/dickite, pyrophyllite and minor orthoclase. Secondary phases identified include mainly species of the jarosite group, gypsum and anglesite. No primary ore minerals besides pyrite are identified. The finegrained character of the tailings material favors fast reactions between the surface waters and the solids. The speciation/mass transfer computer code PHREEQC-2 and the MINTEQ database were employed for geochemical modeling of the acidic surface waters of the tailings dams T1 and T2. Three different scenarios were employed, “Direct Precipitation”, “Mixing with Rainwater” and “Evaporation” to check the equilibrium between the developed surface solutions and the secondary minerals identified in the tailings. The purpose of this work is to understand the way heavy metals may be locked to the lattice of secondary minerals, or dispersed/dissolved after dissolution of unstable secondary phases.

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  • Environmental Geology
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References
Adam, K., 2003. Solid Wastes Management in Sulphide Mines: from Waste Characterisation to Safe Closure of Disposal Sites, Minerals & Energy, 18(4), 25-35.
Allison, J.D., Brown, D.S. and Novo-Gradac, K.J., 1991. MINTEQA2/PRODEFA2, A geochemical assessment model for environmental systems, Version 3.0 User’s Manual, Environmental Research Laboratory, Office of Research and Development, US Environmental Protection Agency, EPA/600/3-91/021, Athens, Georgia, 30605, 92 pp.
Bigham, J.M and Nordstrom, D.K., 2000. Iron and aluminum hydroxysulfates from acid sulfate waters. In: Alpers, C.N., Jambor, J.L. and Nordstrom, D.K., eds., Sulfate minerals. Crystallography, geochemistry and environmental significance, Mineralogical Society of America Reviews in mineralogy and geochemistry, 40, 351-403.
Carroll, D., 1962. Rainwater as a Chemical Agent of Geologic Processes - A Review, U.S. Geological Survey, Washington, Water-Supply Paper 1535-G, 23 pp.
Draves, J.F. and Fox, M.G., 1998. Effects of a mine tailings spill on feeding and metal concentrations in yellow perch (Perca flavescens), Environ. Toxicol. Chem., 17, 1626-1632.
Evangelou, V.P., 1983. Pyritic coal spoils: Their chemistry and water interactions. In: Augustithis, S.S., ed., Leaching and diffusion in rocks and their weathering products, Theophrastus Publications S.A., Athens, Greece, 175-228.
Fergusson, J.E., 1990. The heavy metal elements: chemistry, environmental impact and health effects, Pergamon Press, Oxford, 614 pp.
Groudev, S., Batkova, S.G. and Komnitsas, K., 1999. Treatment of waters polluted with radioactive elements and heavy metals by means of a laboratory passive system, Minerals Engineering, 12(3), 261-270.
Heikkinen, P.M., Räisänen, M.L. and Johnson, R.H., 2009 Geochemical Characterisation of Seepage and Drainage Water Quality from Two Sulphide Mine Tailings Impoundments: Acid Mine Drainage versus Neutral Mine Drainage, Mine Water Environ, 28, 30-49.
Hudson-Edwards, K.A., Macklin, M.G., Jamieson, H.E., Brewer, P.A., Coulthard, T.J., Howard, A.J. and Turner, J.N., 2003. The impact of tailings dam spills and clean-up operations on sediment and water quality in river systems: the Rios Agrio-Guadiamar, Aznalcollar, Spain, Applied Geochemistry, 18, 221-239.
Komnitsas, K., Kontopoulos, A., Lazar, I. and Cambridge, M., 1998. Risk assessment and proposed remedial actions in coastal tailings disposal sites in Romania, Minerals Engineering, 11(12), 1179-1190.
Krauskopf, K.B. and Bird, D.K., 1995. Introduction to geochemistry, McGraw-Hill, New York, USA, 645 pp.
Larsen, T.S., Kristensen, J.A., Asmund, G. and Bjerregaard, P., 2001. Lead and zinc in sediments and biota from Maarmorilik, west Greenland: an assessment of the environmental impact of mining wastes on an Arctic fjord system, Environmental Pollution, 114, 275-283.
Lacal, J., Da Silva, M.P., Garcia, R., Sevilla, M.T., Procopio, J.R. and Hernandez, L., 2003. Study of fractionation and potential mobility of metal sludge from pyrite mining and affected river sediments: changes in mobility over time and use of artificial ageing as a tool in environmental impact assessment, Environmental Pollution, 124(2), 291-305.
Liakopoulos, A., 2009. Environmental study of the former Kirki mines area. Pollution extension and proposed abatement measures, Institute of Geology and Mineral Exploration, Athens, Greece, 257 pp., (in Greek).
Loupasakis, C. and Konstantopoulou, G., 2010. Safety assessment of abandoned tailings ponds: an example from Kirki mines, Greece, Bull. Eng. Geol. Environ., 69, 63-69.
Lottermoser, B.G., 2010. Mine Wastes. Characterization, treatment and environmental impact, Springer-Verlag, Berlin, 400 pp.
Manchester, J.B., Eykholt, G.R., Donohue, S.V. and Cherry, J.C., 2008. Water chemistry and metal cycling in a subaqueous tailings disposal facility. In: Tailings and Mine Waste ’08, Taylor & Francis Group, London, 449 pp.
Michael, K. and Dimadis, E., 2006. Geological study of the area around the Kirki beneficiation plant, Institute of Geology and Mineral Exploration, Athens. Greece, 40 pp., (in Greek).
Moelo, Y., Oudin, E., Makovicky, E., Karup-Moller, S., Pillard, F., Bornuat, M. and Evanghelou, E., 1985. La Kirkiite, Pb10Bi3As3S18, une nouvelle espece minerale homologue de la jordanite, Bull. Mineral., 108, 667-677.
Moelo, Y., Makovicky, E., Karup-Moller, S., Cervelle, B. and Maurel, C., 1990. La levyclaudite, Pb8Sn7Cu3(Bi,Sb)3S28, une nouvelle espece a structure incommensurable, de la serie de la cylindrite, Eur. J. Mineral., 2, 711-723.
Mohamed, A.M.O., Hossein, M. and Hassani, F.P., 2002. Hydro-mechanical evaluation of stabilized mine tailings, Environmental Geology, 41, 749-759.
Parkhurst, D.L. and Appelo, C.A.J., 1999. User’s guide to PHREEQC (version 2) - a computer program for speciation, batch-reaction, one-dimensional transport and inverse geochemical calculations, U.S. Geological Survey, Denver, Colorado, report 99-4259.
Plumlee, G.S. and Logsdon, M.J., 1999. An earth system science toolkit for environmentally friendly mineral resource development. In: Plumlee, G.S. and Logsdon, M.J., eds., The Environmental Geochemistry of Mineral Deposits. Part A: Processes, Techniques, and Health Issues, Society of Economic Geologists, Reviews in Economic Geology, 6A, 1-27.
Skarpelis, N., 1999. The Agios Filippos ore deposit, Kirki (Western Thrace). A base metal part of a high sulfidation epithermal system, Bull. Geol. Soc. Greece, XXXIII, 51-60.
Stokes, J.L., 1954. Studies in the filamentous iron bacterium Sphaerotilus natans, Journal of Bacteriology, 67, 278-291.
Triantafyllidis, S., 2006. Environmental risk assessment of mining and processing activities and rehabilitation proposals in Evros and Rhodope Prerefectures (Thrace, NE Greece), Unpublished Doctoral Thesis (in Greek), Faculty of Geology and Geoenvironment, University of Athens, Athens, Greece, 378 pp.
Triantafyllidis, S., Skarpelis, N. and Komnitsas K., 2007. Environmental characterization and geochemistry of Kirki, Thrace, NE Greece, abandoned flotation tailings dumps, Environ Forensic, 8(4), 351-359.
Walsh, F. and Mitchell, R., 1972. A pH-dependent succession of iron bacteria, Environmental Science and Technology, 6, 809-812.
Wray, D.S., 1998. The impact of unconfined mine tailings and anthropogenic pollution on a semiarid environment - an initial study of the Rodalquilar mining district, southeast Spain, Environmental Geochemistry and Health, 20, 29-38.
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