Microscale investigations of the fate of heavy metals associated to iron-bearing particles in a highly polluted stream

Montargès-Pelletier, Emmanuelle; Duriez, Caroline; Ghanbaja, Jaâfar; Jeanneau, Laurent; Falkenberg, Gerard; Michot, Laurent J.

doi:10.1007/s11356-013-2192-x

Cited by 10 publications

(10 citation statements)

References 42 publications

(42 reference statements)

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“…Moreover, quenching of molten iron results in the formation of ferrospheres (Sokol et al, 2002). Indeed, ferrospheres are also common in metallurgical wastes and were already evidenced in the suspended matter and sediments of a neighboring steel river (Montargès-Pelletier et al, 2014). Additionally, and from a mineralogical point of view, crystalline mineral phases, such as wuestite and magnetite, are formed during the release of furnace smokes and partly constitute the fly ashes (Sharonova et al, 2013;Valentim et al, 2016).…”

Section: Methodsmentioning

confidence: 99%

“…SPM and sediments were collected while the steel industry was still active. Ferrospheres of various sizes could be observed in sediments and SPM of the Fensch river and were spatially associated to Fealuminosilicates (Montargès-Pelletier et al, 2014). Moreover, spherical entities were also evidenced in sludge settling ponds by Huot et al, (2014), but their chemical composition was close to that of slag, i.e.…”

Section: Evolution Of the Iron Minerals 42mentioning

confidence: 95%

“…However, since iron was majorly detected as distinct phases and highly linked to steelmaking activities, the variation of iron mineralogy could be considered as a fingerprint of the industrial activity in the vicinity of the dam. On a study concerning a neighboring steelmaking facility along the Fensch River, mineralogy of sediments and suspended particulate matter had revealed the occurrence of numerous spherical iron oxides.Those phases, more or less weathered, covered a wide size range and were directly related to the steelmaking activity (Montargès-Pelletier et al, 2014, 2007. SPM and sediments were collected while the steel industry was still active.…”

Section: Evolution Of the Iron Minerals 42mentioning

confidence: 99%

“…Northern and northeastern France had been very active with mining (such as iron, coal and salt) and metallurgical (such as Zn and Fe) activities during the last century (Lesven et al, 2010;Lourino-Cabana et al, 2010;Montargès-Pelletier et al, 2014, 2007, Sterckeman et al, 2002. Industrial facilities were commonly established close to rivers to ensure a water source for the cooling of furnaces.…”

mentioning

confidence: 99%

“…Waste products, furnace smokes, dust and sludge from wet cleaning of furnace smokes had been introduced in the aqueous media, transported as suspended particulate matter (SPM) or stored more or less definitely in river sediments. The possible metal release due to re-suspension upon flooding (Vdović et al, 2006;Zebracki, 2008) or sediment dredging (Lesven et al, 2010), as well as selective remobilization of metal bearing phases (Montargès-Pelletier et al, 2014) were studied and reported to evidence the possible impact of contaminated sediments.…”

mentioning

confidence: 99%

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Iron mineralogy as a fingerprint of former steelmaking activities in river sediments

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Montargès-Pelletier

Losson

et al. 2017

Science of The Total Environment

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Submerged sediment cores were collected upstream of a dam in the Orne River, northeastern France. This dam was built in the context of steelmaking to constitute a water reservoir for blast furnace cooling and wet cleaning of furnace smokes. The dam also enhanced sediment deposition in the upstream zone. This study was performed to unravel the contamination status of sediments and to evidence possible contribution sources. The sediment layers were analyzed for water content, grain size, chemical composition, crystalline phases at a bulk scale and poorly crystalline and amorphous phases at a sub-micrometer scale. Visual aspect, texture, color, and chemical and mineralogical analyses showed that the settled sediments were mainly composed of fine black matter, certainly comprising steelmaking by-products. Those materials were highly enriched with Fe, Zn, Pb and other trace metals, except for a relatively thin layer of surficial sediments that had settled more recently. Bulk mineralogy revealed crystalline iron minerals, such as magnetite, goethite, wuestite and pyrite, in the deep layers of the sediment cores. Furthermore, microscopic investigations evidenced the presence of ferrospheres, goethite nanoparticles and newly formed Fe-aluminosilicates; all originating from the former steelmaking facilities. The variation of iron mineralogy, combined with specific chemical profiles and other sediment features, demonstrate the different contributions that constitute the sediment deposit. Furthermore, chemical and mineralogical features of goethite and Fe-aluminosilicates could be used as a fingerprint for such contaminated sediments.

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Section: Methodsmentioning

confidence: 99%

Section: Evolution Of the Iron Minerals 42mentioning

confidence: 95%

Section: Evolution Of the Iron Minerals 42mentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Iron mineralogy as a fingerprint of former steelmaking activities in river sediments

Kanbar

Montargès-Pelletier

Losson

et al. 2017

Science of The Total Environment

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Leaching of Metals in Coastal Technosols Triggered by Saline Solutions and Labile Organic Matter Removal

Kanbar

Srouji

Zeidan

et al. 2018

Water Air Soil Pollut

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This study aims to understand the influence of salinity and labile organic matter removal on the fate and behavior of metals in coastal technosols. Two technosol cores were collected near the Lebanese shore. The cores were sectioned into layers; each layer was characterized for pH, salinity, electric conductivity, labile and total organic matter, grain size, and total and oxalate-extractable metals. Consequently, two saline solutions were used in desorption experiments to understand the role of ionic strength and labile organic matter on metal release. The results showed that the technosol layers were highly heterogeneous; most layers were enriched with Fe, Zn, Pb and Cu. The mineralogical investigations showed that the metals, notably Fe, were not present as crystalline minerals, rather big percentages of the metals were found in amorphous or poorly crystalline phases. Desorption experiment showed that Mg release was dependent on salinity and organic matter in both technosols, while Pb release was dependent on both factors only in one. Additionally, Zn and Cu were associated to organic matter, and their release was conditioned by the removal of labile organic matter; iron was primarily found as amorphous or poorly crystalline phases, and salinity had a major role in its release. The role of ionic strength and labile organic matter removal on the behavior of metals in technosols was demonstrated. Finally, understanding metal dynamics between the solid and liquid compartments in technosols, especially where salt deposition occurs, is important to reduce unwanted metal leaching to groundwater or seawater and transfer to biota.

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Metal transport and remobilisation in a basin affected by acid mine drainage: the role of ochreous amorphous precipitates

Consani

Carbone

Dinelli

et al. 2017

Environ Sci Pollut Res

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Metal-polluted mine waters represent a major threat to the quality of waters and sediments in a downstream basin. At the confluence between acidic mine waters and the unpolluted waters of the Gromolo Torrent (Liguria, North-West Italy), the massive formation of an ochreous amorphous precipitate takes place. This precipitate forms a soft blanket that covers the torrent bed and can be observed down to its mouth in the sea. The aim of this work is to evaluate the dispersion of metals in the Gromolo Torrent basin from the abandoned Cu-Fe sulphide mine of Libiola to the Ligurian Sea and to assess the metal remobilisation from the amorphous precipitates. The mineralogy of the superficial sediments collected in the torrent bed and the concentrations of different elements of environmental concern (Cu, Zn, Cd, Co, Cr, Mn, Ni, Pb, As, and Sb) were therefore analysed. The results showed that the precipitates contain high concentration of Fe, Al, Cu, and Zn, significantly modifying the bulk chemistry of the Gromolo Torrent sediments. In order to evaluate the possible remobilisation of ecotoxic elements from the amorphous precipitates, bulk leaching tests were performed with both deionised and seawater. Bulk leaching tests with deionised water mobilised primarily high Pb amounts, but also relatively high concentrations of Fe, Al, Cu, and Zn are released in the leachate. In seawater tests, Fe, Al, Cu, and Zn were released in smaller amounts, while other elements like Mn, Cd, Co, and Ni increased in the released fraction. Pb was still strongly released as in deionised water experiments. The results show that the interaction of precipitates and seawater can remobilise high concentrations of metals, thus affecting the surrounding environment.

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Microscale investigations of the fate of heavy metals associated to iron-bearing particles in a highly polluted stream

Cited by 10 publications

References 42 publications

Iron mineralogy as a fingerprint of former steelmaking activities in river sediments

Iron mineralogy as a fingerprint of former steelmaking activities in river sediments

Leaching of Metals in Coastal Technosols Triggered by Saline Solutions and Labile Organic Matter Removal

Metal transport and remobilisation in a basin affected by acid mine drainage: the role of ochreous amorphous precipitates

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