2015-Sustainable Industrial Processing Summit
SIPS 2015 Volume 4: Meech Intl. Symp. / Mining Operations

Editors:Kongoli F, Veiga MM, Anderson C
Publisher:Flogen Star OUTREACH
Publication Year:2015
Pages:275 pages
ISSN:2291-1227 (Metals and Materials Processing in a Clean Environment Series)
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    Phytoremediation of Mercury-Contaminated Mine Sites: An Evaluation of Processes and Their Associated Risks

    Fabio Moreno1; Christopher Anderson2; Robert Stuart2; Brett Robinson3; John Meech4;
    1CETESB, Sao Paulo, Brazil; 2MASSEY UNIVERSITY, Palmerston North, New Zealand; 3LINCOLN UNIVERSITY, Lincoln, New Zealand; 4UBC-MINING, Vancouver, Canada;
    Type of Paper: Regular
    Id Paper: 462
    Topic: 4


    Phytoremediation embraces an array of low-cost plant-based technologies that could be potentially advantageous for remediation of Hg polluted soils, especially in developing countries, where artisanal and small-scale mining for gold extraction has left a legacy of Hg pollution. In this work, we thoroughly examine phytoremediation processes and their associated risks in metal-contaminated mine tailings of Brazil, China and New Zealand where Hg pollution caused by anthropogenic or ASM activities are of concern. We describe laboratory and greenhouse experiments where the effect of total Hg concentrations, plant species, and humic acids was investigated on Hg-induced phytoextraction and phytostabilisation. The results of a field-scale phytoextraction experiment in situ are also presented. We also evaluated the generation of Hg-containing leachates and Hg vapour emissions from plant pots enclosed in gas-tight volatilisation chambers. Altogether, these experiments provided a picture on the Hg transport and fate in the plant-soil-atmosphere continuum, which is a fundamental step towards risk assessment and decision making of available alternatives for the remediation and rehabilitation of Hg-contaminated mine sites.


    Artisanal; Metal; Tailings; Technology; Treating;


    [1] M. Veiga, P. Maxson, and L. Hylander: Origin and consumption of mercury in small-scale gold mining. Journal of Cleaner Production, 14 (2006), 436-447.
    [2] M. Veiga and J. Hinton: Abandoned artisanal gold mines in the Brazilian Amazon: a legacy of mercury pollution. Natural Resources Forum, 26 (2002), 15-26.
    [3] L. Evans: Chemistry of metal retention by soils. Environmental Science and Technology, 23(9) (1989), 1046-1056.
    [4] F. Morel, A. Kraepiel, and M. Amyot : The chemical cycle and bioaccumulation of mercury. Annual Reviews in Ecological Systems, 29(1998), 543-566.
    [5] E. Schuster: The behaviour of mercury in the soil with special emphasis on the complexation and adsorption processes- a review of the literature. Water, Air, and Soil Pollution, 56(1991), 667-680.
    [6] D. Wallschläger, V. Desai, M. Spengler, M. Windmöller, and R. Wilken: How humic substances dominate mercury geochemistry in contaminated floodplain soils and sediments. Journal of Environmental Quality, 27(1998), 1044-1057.
    [7] E. Pilon-Smits: Phytoremediation. Annual Review on Plant Biology, 56(2005), 15-39.
    [8] B. Robinson, M. Leblanc, D. Petit, R. Brooks, J. Kirkman, and P.Gregg: The potential of Thlaspi caerulencens for phytoremediation of contaminated soils. Plant and Soil, 203(1998), 47-56.
    [9] W. Morrell, R. Stewart, P. Gregg, N. Bolan, and D. Horne: An assessment of sulfide oxidation in abandoned base-metal tailings, Te Aroha, New Zealand. Environmental Pollution, 94(2) (1996), 2176-225.
    [10] A. Cabral, B. Lehmann, R. Kwitko, and C. Cravo Costa: The Serra Pelada Au-Pd-Pt deposit, Carajás mineral province, Northern Brazil: reconnaissance, mineralogy and chemistry of very high grade palladian gold mineralization. Economic geology, 97(2002), 1127-1138.
    [11] A. Gunson, and M. Veiga: Mercury and artisanal mining in China. Environmental Practice, 6(2) (2004), 109-120.
    [12] M. Blaylock, D. Salt, S. Dushenkov, O. Zakharova, C. Gussman, Y. Kapulnik, B. Ensley, and I. Raskin: Enhanced accumulation of Pb in indian mustard by soil-applied chelating agents. Environmental Science and Technology, 31(1997), 860-865.
    [13] F. Moreno, C. Anderson, R. Stewart, and B.Robinson: Phytoremediation of mercury-contaminated mine tailings by induced plant-Hg accumulation. Environmental Practice, 6(2) (2004), 165-175.
    [14] D. Gallo, R. Mancini (Ed.), Environmental and Regional Air Pollution, 2009, Nova publishers, chapter 6.
    [15] R. Bowell, R. Foster, and A. Gize: The mobility of gold in tropical rain forest soils. Economic Geology, 88(1993), 999-1016.
    [16] D. Wallschläger, V. Desai, and R. Wilken: The role of humic substances in the aqueous mobilization of mercury from contaminated floodplain soils. Water, Air, and Soil Pollution, 90(1996), 507-520.
    [17] B. Nowack, R. Schulin and B. Robinson: Critical assessment of chelant-enhanced metal phytoextraction. Environmental Science and Technology, 40 (17) (2006), 5225-5232.
    [18] A. Kabata-Pendias, Trace Elements in Soils and Plants (3rd Edition), 2000, Florida: CRC Press.
    [19] 19F. Moreno, C. Anderson, R. Stewart, and B. Robinson: Phytofiltration of mercury-contaminated water: plant accumulation and volatilisation aspects. Environmental and Experimental Botany, 62(2008), 78-85.
    [20] D. Heeraman, V Claassen, and R. Zasoski: Interaction of lime, organic matter and fertilizer on growth and uptake of arsenic and mercury by Zorro fescue (Vulpia myuros L.). Plant and Soil, 234 (2001), 215- 231.
    [21] D. Wang, C. Qing, T.Y. Guo, and Y. J. Guo: Effects of humic acid on transport and transformation of mercury in soil-plant systems. Water, Air, and Soil Pollution, 95 (1997), 35-43.
    [22] F. Moreno, C. Anderson, R. Stewart, B. Robinson, R. Nomura, M. Gomshei, and J, Meech: Effect of thioligands on plant-Hg accumulation and volatilisation from mercury-contaminated mine tailings, Plant and Soil , 275 (1-2) (2005), 231-243.
    [23] L. Rodriguez, F. Lopez-Bellido, A. Carnicer, and V. Alcade-Morano: Phytoremediation of Hg-polluted soils using crop plants. Fresenius Environmental Bulletin, 12(9) (2003), 967-971.
    [24] M. Bundt, A. Albrecht, P. Froidevaux, P. Blaser, and H. Fluhler: Impact of preferential flow on radionuclide distribution in soil. Environmental Science and Technology, 34(2000), 3895–3899.
    [25] 25 M. Gustin, J. Ericksen, D. Schorran, D. Johnson, S. Lindberg, and J. Coleman: Application of controlled mesocosms for understanding mercury air-soil-plant exchange. Environmental Science and Technology, 38(2004), 6044-6050.
    [26] F. Moreno, J. Sígolo, and A. Figueira: Peat-assisted phytoremediation of waste foundry sands:plant growth, metal accumulation and fertility aspects. International Journal of Phytoremediation, 14(2012):247-260.
    [27] Y. Wang, C. Stauffer, C. Keller, and M. Greger: Changes in Hg fractionation in soil induced by willow. Plant and Soil, 275(2005), 67-75.
    [28] M. Prasad, K. Sajwan, and R. Naidu (Eds), Trace Elements in the Environment: Biogeochemistry, Biotechnology, and Bioremediation, 2005, Boca Raton (FL) CRC press.

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    Moreno F, Anderson C, Stuart R, Robinson B, Meech J. Phytoremediation of Mercury-Contaminated Mine Sites: An Evaluation of Processes and Their Associated Risks. In: Kongoli F, Veiga MM, Anderson C, editors. Sustainable Industrial Processing Summit SIPS 2015 Volume 4: Meech Intl. Symp. / Mining Operations. Volume 4. Montreal(Canada): FLOGEN Star Outreach. 2015. p. 209-228.