Bioprecipitation of As4S4 polymorphs in an abandoned mine adit

Falteisek, Lukáš; Drahota, Petr; Culka, Adam; Laufek, František; Trubač, Jakub

doi:10.1016/j.apgeochem.2019.104511

Cited by 14 publications

(2 citation statements)

References 56 publications

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“…However, the burial of sediments over time or drop of redox potential due to temporal flooding could promote the release of As from sediments via reductive dissolution [15][16][17][18]32,51]. Although a field analysis of redox was not performed, the presence of hydromorphic features in soil samples 6 and 7 proves that those soils are subjected temporarily to reducing conditions that are particularly favorable for the release of As as a result of reductive dissolution of (hydroxy)Fe-oxides, although they do not cause the formation of secondary As-hosted sulfides reported from strongly anoxic conditions [21,47,54,55]. In our research, no sulfide As minerals As were identified in the sediment 5(S) or in the soil No.…”

Section: Discussionmentioning

confidence: 99%

Arsenic Forms in Soils of Various Settings in the Historical Ore Mining and Processing Site of Radzimowice, Western Sudetes

Lewińska

Duczmal-Czernikiewicz

Karczewska

et al. 2021

Minerals

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This study, carried out in Radzimowice, a historical As mining site, analyzed the speciation and mineralogical As forms in soils, in different locations, as related to rock weathering processes and associated environmental risk. Four soil groups, including those on mine dumps, and in the stream valley, as well as stream sediments, were examined. The screening performed on 52 samples showed an extremely low actual As solubility, except for soils at reducing conditions. Nine samples were subjected to mineralogical analysis by microscopy and X-ray diffraction (XRD), and sequential extraction according to Wenzel. The results indicated that in all samples, As was associated mainly with amorphous Fe oxides, that constituted up to 66% of total As. Scanning electron microscopy–energy-dispersive spectroscopy (SEM-EDS) analysis performed on 3 representative samples revealed that the dump material contained the grains of primary As minerals, mainly arsenopyrite and loelingite, rimmed and encrusted with goethite. Stream sediments and the alluvial soil contained large amounts of (hydroxy)Fe-oxides, in which As was present in sparse scorodite grains and in highly dispersed forms associated with goethite and amorphous compounds of various compositions. The diversity of As species makes forecasting of its environmental fate difficult, therefore further research should focus on As transformations, particularly under reducing conditions.

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Section: Discussionmentioning

confidence: 99%

Arsenic Forms in Soils of Various Settings in the Historical Ore Mining and Processing Site of Radzimowice, Western Sudetes

Lewińska

Duczmal-Czernikiewicz

Karczewska

et al. 2021

Minerals

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“…However, the arsenopyrite's oxidized overlayer may dissolve under the more reducing conditions within the submarine mine tailings, releasing As +5 that subsequently, in presence of organic matter, would reduce to As 2+ and As 3+ and react with sulfide through the mediation of SRB. The immobilization of As in the form of authigenic realgar and orpiment would lead to a massive As removal in response to the immobilization of highly toxic As 3+ by the activity of SRB (Drahota et al, 2017;Eberle et al, 2020;Falteisek et al, 2020;Jørgensen et al, 2019;Knappová et al, 2019;Le Pape et al, 2017;Peřestá et al, 2022). Nevertheless, the precipitation, stability and sorption of authigenic realgar and orpiment should be further inspected to better assess and predict the As precipitation rates and mobility in Portmán's Bay submarine mine tailings and beyond.…”

Section: As Ecotoxicology and Bioavailabilitymentioning

confidence: 99%

As and S Speciation in a Submarine Sulfide Mine Tailings Deposit and its Environmental Significance the Study Case of Portmán Bay (Se Spain)

et al. 2022

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Geomorphology of Abandoned Underground Slate Mines in Czechia

2023

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We conducted one of the first complex geomorphological investigations of underground abandoned slate mines in Czechia, Central Europe. Sixty types of subterranean geomorphic forms were described from 114 abandoned underground slate mines in the Nízký Jeseník Upland. The forms, evaluated according to their type, scale, frequency, and fragility, are independent of each other or embedded. Their cascades occur in large multilevel mines affected by fluvial and gravitational processes. Analysis of the microforms revealed mine pearls enriched with titanium, calcareous soda-straw stalactites, amorphous calcareous-sulphurous piles, and quartz veins. Forty-seven of the identified mines were affected by gravitational failures. Four-year measurements of cracks revealed both negligible oscillations and distinct displacement of rock blocks up to 4 mm. The range of described geomorphic forms together with identified cascades and measured crack displacement point to rich geodiversity and high dynamics within the abandoned mines. Compared to other subterranean geosystems, the geomorphology of abandoned underground slate mines remains poorly investigated, although knowledge of subterranean geomorphic systems is crucial for future natural evaluation, risk assessment, remediation, or tourist management of abandoned mining sites. The recent results are applicable to other types of abandoned mines in the world. However, we should expect new findings and investigation of as yet undescribed geomorphic forms.

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Bioprecipitation of As4S4 polymorphs in an abandoned mine adit

Cited by 14 publications

References 56 publications

Arsenic Forms in Soils of Various Settings in the Historical Ore Mining and Processing Site of Radzimowice, Western Sudetes

Arsenic Forms in Soils of Various Settings in the Historical Ore Mining and Processing Site of Radzimowice, Western Sudetes

As and S Speciation in a Submarine Sulfide Mine Tailings Deposit and its Environmental Significance the Study Case of Portmán Bay (Se Spain)

Geomorphology of Abandoned Underground Slate Mines in Czechia

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