Mobilization of Ag, heavy metals and Eu from the waste deposit of the Las Herrerias mine (Almería, SE Spain)

Navarro, Andrés; Cardellach, Esteve

doi:10.1007/s00254-008-1234-z

Cited by 16 publications

(4 citation statements)

References 28 publications

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“…1), located 90 km NE of the city of Almería (SE Spain), the Iberian Pyrite Belt, and the Cartagena mining district is the oldest metallurgical and mining area in the Iberian Peninsula (Navarro et al, 2004(Navarro et al, , 2006bNavarro and Cardellach, 2009). During the 19th century, the smelting plants located along the Mediterranean coastline of the Sierra Almagrera produced approximately 550,000 t of Pb and 512 t of Ag .…”

Section: Study Areamentioning

confidence: 99%

The use of soil-flushing to remediate metal contamination in a smelting slag dumping area: Column and pilot-scale experiments

Navarro¹,

Martínez²

2010

Engineering Geology

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Section: Study Areamentioning

confidence: 99%

The use of soil-flushing to remediate metal contamination in a smelting slag dumping area: Column and pilot-scale experiments

Navarro¹,

Martínez²

2010

Engineering Geology

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“…Although mine water treatment is often focused on acid drainage, metals such as arsenic, cobalt, molybdenum, nickel, antimony, and zinc are soluble at near-neutral pH and can contaminate soil, surface waters, and groundwater even under non-acidic conditions [1][2][3][4][5]. Neutral mine drainage occurs when sufficient neutralization potential of rocks and/or tailings reacts and consumes acid in the waters that have been in contact with the sulfides or when sulfide oxidation is weak due to the low sulfide content in ore and/or mine waste [6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Application of Magnesium Oxide for Metal Removal in Mine Water Treatment

Navarro

Matta

2022

Sustainability

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In this study low-grade magnesium oxide (MgO) produced by calcinations of natural magnesite was used in mine water treatment using a laboratory-column device. The treatment of mine water from the abandoned Osor mine (NE Spain) with MgO showed the removal of metals from both mine water and tailing leachates. The PHREEQC numerical code and the Geochemist’s Workbench code (GWB) were used to evaluate the speciation of dissolved constituents and calculate the saturation state of the effluents. The analysis of the treated mine water showed the removal of As (from 1.59 to 0.31 μg/L), Cd (from 1.98 to <0.05 μg/L), Co (from 19.1 to <0.03 μg/L), F (from 2730 to 200 μg/L), Mn (from 841 to 0.6 μg/L), Ni (from 17.9 to <2 μg/L, U (from 9.16 to 0.08 μg/L), and Zn (from 2900 to 68.5 μg/L). Pb was also removed (from 98 to 35.2 μg/L) in the treatment of contaminated leachates from the mine waste. The mixing of MgO and water at room temperature may promote the formation of a stabilizing agent composed of hydroxides, carbonates, and magnesium-silicate-hydrates (MSH), which may remove Cd, Zn, and similar metals by sorption on MSH, substitution on the MSH lattice, and precipitation or co-precipitation with some of the hydrated phases.

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“…The area comprising the Sierra Almagrera (Figure 1), located 90 km NE of the city of Almerí a (SE Spain), together with the Iberian Pyrite Belt and the Cartagena mining district, is the oldest metallurgical and mining area in the Iberian Peninsula [33][34][35]. During the nineteenth century and the early twentieth century, the smelting plants located along the Mediterranean coastline of the Sierra Almagrera district produced approximately 550,000 t of Pb and 3000 t of Ag.…”

Section: Research Sitementioning

confidence: 99%

Effect of Sludge Amendment on Remediation of Metal Contaminated Soils

Navarro

2012

Minerals

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Column-leaching and pilot-scale experiments were conducted to evaluate the use of biosolids (sewage sludges) to control the mobilization of metals from contaminated soils with smelting slags. The pilot-scale experiments using amended soils showed that Cu, Pb and Sb were retained, decreasing their concentrations from 250 g/L, 80 g/L and 6 g/L, respectively in the leachates of contaminated soils, to <20 g/L, 40 g/L and 4 g/L, respectively, in the amended material. Hydrogeochemical modeling of the leachates using Minteq revealed that the degree of complexation of Cu rose 56.3% and 57.6% in leachates of amended soils. Moreover, Cu may be immobilized by biosolids, possibly via adsorption by oxyhydroxides of Fe or sorption by organic matter. The partial retention of Pb coincides with the possible precipitation of chloropyromorphite, which is the most stable mineral phase in the pH-Eh conditions of the leachates from the amended material. The retention of Sb may be associated with the precipitation of Sb 2 O 3 , which is the most stable mineral phase in the experimental conditions. The organic amendments used in this study increased some metal and metalloid concentrations in the leachates (Fe, Mn, Ni, As and Se), which suggests that the organic amendments could be used with caution to remediate metal contaminated areas.

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Mobilization of Ag, heavy metals and Eu from the waste deposit of the Las Herrerias mine (Almería, SE Spain)

Cited by 16 publications

References 28 publications

The use of soil-flushing to remediate metal contamination in a smelting slag dumping area: Column and pilot-scale experiments

The use of soil-flushing to remediate metal contamination in a smelting slag dumping area: Column and pilot-scale experiments

Application of Magnesium Oxide for Metal Removal in Mine Water Treatment

Effect of Sludge Amendment on Remediation of Metal Contaminated Soils

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