Minerals controlling arsenic and lead solubility in an abandoned gold mine tailings

Roussel, Christophe; Néel, Catherine; Bril, Hubert

doi:10.1016/s0048-9697(00)00707-5

Cited by 137 publications

(64 citation statements)

References 26 publications

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“…Smelting wastewater is usually coupled with high concentrations of As and Cd, which presents a major challenge to the environment (Bian et al, 2012;Hao et al, 2015;Liao et al, 2016;Roussel et al, 2000). TiO 2 has been investigated to simultaneously remove high concentrations of As(III) and Cd from metallurgical wastewater (Luo et al, 2010;Yan et al, 2015).…”

Section: At High Concentrations In Industrial Wastewatermentioning

confidence: 99%

Recent progress of arsenic adsorption on TiO 2 in the presence of coexisting ions: A review

Jing

2016

Journal of Environmental Sciences

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Section: At High Concentrations In Industrial Wastewatermentioning

confidence: 99%

Recent progress of arsenic adsorption on TiO 2 in the presence of coexisting ions: A review

Jing

2016

Journal of Environmental Sciences

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“…Roussel et al (2000) estimated the Gibbs free energy of formation from elements for beudantite as -727.5 kcal/mol (-3043.9 kJ/mol) using thermodynamic data from Kashkay et al (1975). This value gives a solubility product (Ksp) for beudantite of 10 -15 which is higher than our & 10 -12 value.…”

Section: Calorimetric Datamentioning

confidence: 99%

“…Zinc atoms have also been found to occupy trigonal bipyramidal sites in half of the available six-membered rings of the layers of octahedral in a monoclinic segnitite (PbFe 3 H(AsO 4 ) 2 (OH) 6 )-related mineral by Grey et al (2008), giving PbZn 0.5 Fe 3 (AsO 4 ) 2 (OH) 6 . The Cu and Zn containing plumbojarosite (beaverite) is an important phase present in the hydrometallurgy of sulphide concentrates (Jambor and Dutrizac, 1985), and beudantite PbFe 3 (AsO 4 )(SO 4 )(OH) 6 has been described from As and Pb contaminated agricultural soil (Chiang et al, 2010), mine waste and tailings (Dill et al, 2010;Romero et al, 2010;Roussel et al, 2000), from hydrometallurgical processes (Roca et al, 1999) and from bauxite waste red mud (McConchie et al, 2006). Jarosite has also been detected on Mars, and shown to be stable under likely Martian temperature conditions , giving evidence this planet's surface once contained water (Klingelhöfer et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

Synthesis, characterization and thermochemistry of synthetic Pb–As, Pb–Cu and Pb–Zn jarosites

Forray

Smith

Navrotsky

et al. 2014

Geochimica et Cosmochimica Acta

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The enthalpy of formation from the elements of well characterized Pb-As, Pb-Cu, measured by high temperature oxide melt solution calorimetry and gave !Hº f = -3691.2 ± 8.6 kJ/mol, !Hº f = -3653.6 ± 8.2 kJ/mol, and !Hº f = -3669.4 ± 8.4 kJ/mol, respectively. Using estimated entropies, the standard Gibbs free energy of formation from elements at 298 K !Gº f of the three compounds were calculated to be -3164.8 ± 9.1 kJ/mol, -3131.4 ± 8.7 kJ/mol, and -3153.6 ± 8.9 kJ/mol, respectively. Based on these free energies, their logK sp values are -13.94 ± 1.89, -4.38 ± 1.81 and -3.75 ± 1.80, respectively. For tis compounds, a log 10 {Pb 2+ } -pH diagram is presented. The diagram shows that the formation of Pb-As jarosite may decrease aqueous arsenic and lead concentrations to meet drinking water standards. The new thermodynamic data confirm that transformation of Pb-As jarosite to plumbojarosite is thermodynamically possible.

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“…According to Liu et al (2008), the components of mine tailings depend to a large extent on the chemicals and the method used in the mineral extraction, as well as the geology of the mined ore been processed. Tailings from mineral processing, in particular, serve as a main source of contamination of catchment surface and groundwater resources (Roussel, Néel, & Bril, 2000). The liquid component of tailings is made up of water and chemicals used in ore processing.…”

Section: Introductionmentioning

confidence: 99%

Assessing the Impact of an Operating Tailings Storage Facility on Catchment Surface and Groundwater Quality in the Ellembele District of the Western Region of Ghana

Acheampong¹,

Nukpezah²

2016

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The study assessed the impact of an operating Tailings Storage Facility (TSF) of Adamus Resources Limited (Nzema Gold Mine) in the Ellembele District of the Western of Ghana on catchment surface and groundwater quality. Water samples were collected between June and December 2014 from seventeen (17) sampling sites including the TSF decant water (TSF-DW), three (3) streams, a water storage dam, a pond and eleven (11) groundwater monitoring boreholes within 500 m radius of the mine's Tailings Storage Facility. Samples were analyzed for pH, true colour, electrical conductivity (EC), total dissolved solids (TDS), total suspended solids (TSS), biological oxygen demand (BOD), dissolved metals (arsenic, cadmium, copper, mercury) and cyanide (weak acid dissociable cyanide (WAD), free cyanide and total cyanide) using standard procedures. The TSF-DW reported elevated arsenic, free cyanide and TSS concentrations above GHEPA guideline for effluent discharge. Elevated TSS and arsenic concentrations above GHEPA limits were reported in PWSD which is a pond uphill of the TSF and a receptor to effluents from illegal mining sites on the mine's concession. All other parameters recorded in surface and groundwater bodies studied were within WHO guideline limit for potable water. Results of the study suggest that the quality of surface and groundwater around the TSF has not been adversely affected even though the TSF is contaminated. Study findings suggest that well-engineered tailings dam ofARLwith its effective liner and management systems may have provided a safe structure and prevented contamination of water resources within its catchment.

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Minerals controlling arsenic and lead solubility in an abandoned gold mine tailings

Cited by 137 publications

References 26 publications

Recent progress of arsenic adsorption on TiO 2 in the presence of coexisting ions: A review

Recent progress of arsenic adsorption on TiO 2 in the presence of coexisting ions: A review

Synthesis, characterization and thermochemistry of synthetic Pb–As, Pb–Cu and Pb–Zn jarosites

Assessing the Impact of an Operating Tailings Storage Facility on Catchment Surface and Groundwater Quality in the Ellembele District of the Western Region of Ghana

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