A methodological approach for the identification of arsenic bearing phases in polluted soils

Matera, Virginie; Hécho, Isabelle Le; Laboudigue, A.; Thomas, Patrick R.; Tellier, S.; Astruc, M.

doi:10.1016/s0269-7491(03)00146-5

Cited by 123 publications

(69 citation statements)

References 46 publications

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“…Rapid conversion from As III to As V during soil, sediment and fly ash extraction has been observed in other studies (Ellwood and Maher, 2003;Wang et al, 1995). This transformation could be facilitated in the presence of some microorganisms (Ahmann et al, 1997;Cummings et al, 1999;Turpeinen et al, 1999;Wilkie and Hering, 1998) and in the presence of hydroxides of Fe, Al, and Mn (Driehaus et al, 1995;Manning et al, 2002;Matera et al, 2003;Mucci et al, 2000;Raven et al, 1998;Scott and Morgan, 1995;Takamatsu et al, 1985;Tournassat et al, 2002). PACS-2 contains fairly high concentrations of Fe (4.09 ± 0.06%), Al (6.62 ± 0.32%), and Mn (440 ± 19 μg/g).…”

Section: Soil Extraction With Phosphate Alonesupporting

confidence: 52%

“…One is to provide a mild reducing environment which in theory may facilitate retaining arsenic in its As III oxidation state. Another function is through its effectiveness in dissolving iron oxy/hydroxide surfaces which are known to be strong adsorption sites for arsenic (Matera et al, 2003;Tessier et al, 1979). Experiments were first conducted to evaluate whether NH 2 OH·HCl would facilitate the reduction of As V to As III .…”

Section: Soil Extraction In the Presence Of Nh 2 Oh·hclmentioning

confidence: 99%

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Extraction of arsenate and arsenite species from soils and sediments

Georgiadis

Cai

Solo‐Gabriele

2006

Environmental Pollution

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The primary objective of this study was to develop a simple method that can be used to extract the more readily mobilizable and bioavailable arsenic species from soil and sediment while at the same time minimizing the transformation between (As III ) and (As V ), the two most commonly found arsenic species in the environment. Several extraction strategies were evaluated using phosphate as extractant in combination with either ethylenediaminetetraacetic acid (EDTA), hydroxylamine hydrochloride (NH 2 OH·HCl), or sodium diethyldithiocarbamate trihydrate (NaDDC).The addition of EDTA in the phosphate solution did not prevent As III from oxidation. While promising results were shown when 1% NH 2 OH·HCl was added, conversion of As III began to occur with extended extraction time (>12 h). Good results were achieved using 10 mM phosphate and 0.5% NaDDC where As III oxidation was clearly minimized. The combined phosphate and NaDDC solution was applied to several soil and sediment samples. As III spiked was quantitatively recovered in all soil types tested.

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Section: Soil Extraction With Phosphate Alonesupporting

confidence: 52%

Section: Soil Extraction In the Presence Of Nh 2 Oh·hclmentioning

confidence: 99%

Extraction of arsenate and arsenite species from soils and sediments

Georgiadis

Cai

Solo‐Gabriele

2006

Environmental Pollution

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“…By comparing the results of SEM-EDS, we speculate that the occurrence of metals in the grains >0.1 mm is influenced by iron oxide and calcium oxide, whereas adsorption in the grains <0.1 mm is associated with iron oxide or manganese oxide. Some studies have indicated that clay minerals, organic matter, and Fe-Mn oxides usually act as adsorption vehicles, implying a robust adsorption mechanism with the toxic elements (Matera et al, 2003;Kumpiene et al, 2008).…”

Section: Washing Pb Zn and CD From Different Particle Sizesmentioning

confidence: 99%

Removal of heavy metals and arsenic from a co-contaminated soil by sieving combined with washing process

Liao

Yan

2016

Journal of Environmental Sciences

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Batch experiments were conducted with a heavy metals and arsenic co-contaminated soil from an abandoned mine to evaluate the feasibility of a remediation technology that combines sieving with soil washing. Leaching of the arsenic and heavy metals from the different particle size fractions was found to decrease in the order: < 0.1, 2-0.1, and > 2 mm.With increased contact time, the concentration of heavy metals in the leachate was significantly decreased for small particles, probably because of adsorption by the clay soil component. For the different particle sizes, the removal efficiencies for Pb and Cd were 75%-87%, and 61%-77% for Zn and Cu, although the extent of removal was decreased for As and Cr at <45%. The highest efficiency by washing for Pb, Cd, Zn, and As was from the soil particles >2 mm, although good metal removal efficiencies were also achieved in the small particle size fractions. Through SEM-EDS observations and correlation analysis, the leaching regularity of the heavy metals and arsenic was found to be closely related to Fe, Mn, and Ca contents of the soil fractions. The remediation of heavy metal-contaminated soil by sieving combined with soil washing was proven to be efficient, and practical remediation parameters were also recommended.

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“…The mobilisation of As under both basic and acidic conditions can be explained by its amphoteric nature (Matera et al, 2003). The mobilisation data for Cd, Cr, Cu, Ni, Pb and Zn indicated that that the risk of mobilisation may be lower in the raised pH environment following treatment with hydraulic binders than during landfill disposal, when the sediment could be subject to leaching events associated with acid rainfall and a decrease in pH.…”

Section: Geochemical Characteristicsmentioning

confidence: 99%

Trace element mobility in a polluted marine sediment after stabilisation with hydraulic binders

Saussaye

Hamdoun

Leleyter

et al. 2016

Marine Pollution Bulletin

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The management of dredged marine sediment is an issue for many harbours, particularly when contaminant concentrations prevent disposal at sea. The stabilisation/solidification of the sediments with hydraulic binders for a use in road subgrade layer is a potential alternative solution. However, the environmental acceptability is not yet fully established. This paper presents the results of a case study to comprehensively determine the stabilisation of As, Cd, Cr, Cu, Ni, Pb and Zn. After demonstrating that stabilisation/solidification affects the microstructure of the sediment, a mobility study is realised (single, sequential and kinetic extractions). According to the regulatory/ technical guidelines the studied elements do not pose a risk to the environment. However, results from more complex mobility studies reveal that stabilisation in the short term is only effective for Ni while other elements are mobilised after treatment by at least one type of extraction. Stabilisation in the long term is not universally effective.

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A methodological approach for the identification of arsenic bearing phases in polluted soils

Cited by 123 publications

References 46 publications

Extraction of arsenate and arsenite species from soils and sediments

Extraction of arsenate and arsenite species from soils and sediments

Removal of heavy metals and arsenic from a co-contaminated soil by sieving combined with washing process

Trace element mobility in a polluted marine sediment after stabilisation with hydraulic binders

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