Antimony mobility in lead smelter-polluted soils

Ettler, Vojtěch; Tejnecký, Václav; Mihaljevič, Martin; Šebek, Ondřej; Zuna, Milan; Vaněk, Aleš

doi:10.1016/j.geoderma.2009.12.027

Cited by 61 publications

(28 citation statements)

References 40 publications

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“…Beside phosphate-extractable and oxalate extracted phase, other recalcitrant components of Sb made up 33-39% and 27-40% of the total amount of Sb sorbed by Yingtan and Huanjiang soils, respectively, as determined by digestion with strong acid at high temperature. Similar results have been observed on Sb contaminated soils near mining sites, which showed extractable Sb was only a minor fraction of the total Sb retained in soils and the majority of Sb was in the oxide-bounded or residue forms (King, 1988;Wilson et al, 2004;He, 2007;Ettler et al, 2010;Okkenhaug et al, 2011).…”

Section: Kinetic Adsorption-desorptionsupporting

confidence: 84%

“…Sorption studies showed that large fractions of Sb sorbed on soils were nonexchangeable by ionic solution, suggesting the low mobility of Sb in soils (Hammel et al, 2000;Ettler et al, 2007). Sequential extraction results often suggested Sb association with Fe oxides in contaminated soils Ettler et al, 2010). EXAFS studies by Mitsunobu et al (2006) and Scheinost et al (2006) suggested that Sb in the soil is mainly associated with Fe(III) hydroxide and speciation of Sb in soil water showed that Sb was present exclusively as Sb(V), over a wide redox range.…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, studies on mining related contaminated sites often revealed that despite the high Sb concentration in soils, Sb was confined to the immediate vicinity of pollution sources and relatively little vertical movement was observed (Flynn et al, 2003;Wilson et al, 2004;He, 2007;Lindsay et al, 2011). For example, Sb was confined to the upper 10 cm in soil profile near a lead smelter after long history of ore processing (Ettler et al, 2010). This wide discrepancy on Sb mobility warrant detailed investigation on Sb transport in different types of soils and varying geochemical settings.…”

Section: Introductionmentioning

confidence: 99%

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Kinetic modeling of antimony(V) adsorption–desorption and transport in soils

Zhang

Zhou

2014

Chemosphere

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h i g h l i g h t sSb(V) sorption on soils were timedependent and irreversible. Retention mechanisms were different for acidic red soil and calcareous soil. Sb(V) transport in soils dominated by non-equilibrium reactions. Kinetic reversible-irreversible MRM formulation well described experiment results. Antimonate [Sb(V)] adsorption-desorption and transport in an acidic red soil (Yingtan) and a calcareous soil (Huanjiang) was investigated using kinetic batch and miscible displacement experiments. Different formulations of a multi-reaction model (MRM) were evaluated for their capabilities of describing the retention and transport mechanisms of Sb(V) in soils. The experimental results showed that adsorption of Sb(V) by two soils was kinetically controlled and largely irreversible. The Sb(V) adsorption capacity and kinetic rate of the acidic red soil was much higher than that of the calcareous soil. The asymmetrical breakthrough curves indicated the strong dominance of non-equilibrium retention of Sb(V). A four step sequential extraction procedure provided evidence that majority of applied Sb(V) was irreversibly retained. A formulation of MRM with two kinetic sorption sites (reversible and irreversible) successfully described Sb(V) adsorption-desorption data. The use of kinetic batch rate coefficients for predictions of breakthrough curves (BTCs) underestimated Sb(V) retention and overestimated its mobility. In an inverse mode with optimized rate coefficients, the MRM formulation was capable of simulating Sb(V) transport in soil columns.

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Section: Kinetic Adsorption-desorptionsupporting

confidence: 84%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Kinetic modeling of antimony(V) adsorption–desorption and transport in soils

Zhang

Zhou

2014

Chemosphere

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“…Several studies have demonstrated that antimony and arsenic have low mobility in soils, and they are mainly retained by oxy-hydroxides and residual fraction (He 2007;Ettler et al 2007Ettler et al , 2010Wilson et al 2009;García-Sánchez et al 2010). The results obtained in the Portuguese areas studied are according to those presented by other studies, as arsenic tends to be more available than antimony (Ettler et al 2010). Several studies show that antimony is relatively immobile in soils, mainly bound to residual fraction in soils polluted by mining activities (Alloway 1995;Ettler et al 2010;Wilson et al 2009).…”

Section: Resultssupporting

confidence: 63%

“…Furthermore, in most samples from Montalto and Tapada arsenic presents a higher portion associated with the oxy-hydroxides compared to antimony and this can be explained by the higher solubility of arsenic sulphides and sulphosalts than those of Sb (Vink 1996). Several studies have demonstrated that antimony and arsenic have low mobility in soils, and they are mainly retained by oxy-hydroxides and residual fraction (He 2007;Ettler et al 2007Ettler et al , 2010Wilson et al 2009;García-Sánchez et al 2010). The results obtained in the Portuguese areas studied are according to those presented by other studies, as arsenic tends to be more available than antimony (Ettler et al 2010).…”

Section: Resultsmentioning

confidence: 99%

Assessment to the potential mobility and toxicity of metals and metalloids in soils contaminated by old Sb–Au and As–Au mines (NW Portugal)

2011

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The main purpose of this study is to assess arsenic and antimony availability in soils, as well as Co, Cr, Cu, Fe, Mn, Ni, Pb and Zn availability in soils derived from the schist-metagraywacke complex close to old SbAu mines and in soils developed from Ordovician slates and close to an old As-Au mine in Portugal. The availability was determined using a European certified sequential extraction procedure (BCR). The results demonstrated that metalloids are not readily bioavailable, because they are mainly associated with the residual fraction. Arsenic and antimony proportions in exchangeable fractions are up to 3 and 1%, respectively. However, arsenic is up to 24% in oxy-hydroxide fractions, while antimony is up to 4% in them, demonstrating the highest bioavailability of arsenic compared to that of antimony, as metalloids are weakly bound to the soils in that fraction. Therefore, arsenic tends to be more toxic than antimony in all soils studied. However, the pseudo-total contents show that both metalloids are above the Italian and Dutch guidelines. Therefore, if physico-chemical changes occur arsenic and antimony will show higher potential environmental risk than evidenced by Co, Cr, Cu, Fe, Mn, Ni, Pb and Zn.

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Investigation of heavy metal distributions along 15 m soil profiles using EDXRF, XRD, SEM‐EDX, and ICP‐MS techniques

et al. 2018

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The research of soil contamination by heavy metal is an important field due to its environmental and health implications. The goal was to study the elemental mobility as a function of depth. For this reason, the distribution of heavy metals (V, Cr, Co, Ni, Cu, Zn, As, Sn, and Pb) was investigated along soil profiles up to a depth of 15 m at 9 sampling sites in the Nilufer industrial district (Bursa, Turkey). Elemental analyses were done with the Epsilon 5 energy dispersive X‐ray fluorescence and inductively coupled plasma mass spectrometry equipment. Particle analysis was performed with a JEOL scanning electron microscope equipped with a Si(Li) X‐ray detector. The crystallographic compositions of oxide compounds in soil samples were identified by a Rigaku X‐ray diffraction instrument. Different parameters such as the soil's chemical (mineralogical structure, pH, and electrical conductivity) and physical properties (the number of blows, the stiffness index, the liquidity index, the plasticity index, and the water content) were analyzed. To assess the mobility of the heavy metals, diffusion (D) and convection coefficients (ʋ) were calculated with the finite difference method. Convection was determined to dominate the studied region. In addition, the mobility coefficient was determined for each metal. High mobilities were determined for Zn and V, moderate mobilities for Cr, Ni, Cu, and As, and low mobilities were determined for Co and Pb. The results revealed that elements had reached depths of up to 15 m, causing irreversible soil contamination that may lead to environmental health issues.

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Antimony mobility in lead smelter-polluted soils

Cited by 61 publications

References 40 publications

Kinetic modeling of antimony(V) adsorption–desorption and transport in soils

Kinetic modeling of antimony(V) adsorption–desorption and transport in soils

Assessment to the potential mobility and toxicity of metals and metalloids in soils contaminated by old Sb–Au and As–Au mines (NW Portugal)

Investigation of heavy metal distributions along 15 m soil profiles using EDXRF, XRD, SEM‐EDX, and ICP‐MS techniques

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