Geochemical signature of superhigh organic sulphur Raša coals and the mobility of toxic trace elements from combustion products and polluted soils near the Plomin coal-fired power station in Croatia

Lieberman, Roy Nir; Izquierdo, María; Muñoz-Quirós, Carmen; Cohen, Haim; Chenery, Simon

doi:10.1016/j.apgeochem.2019.104472

Cited by 12 publications

(4 citation statements)

References 52 publications

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“…The content of both C and N was higher in aged waste samples compared to the 'fresh' ashes values previously reported [4]. However, the ratio of C:N was lower in aged waste than fresh samples, indicating the addition of organic matter.…”

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confidence: 58%

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Metalloid mobility of aged landfill - the negative impact of the forgotten

Petrović¹,

Fiket²,

Dolenec³

et al. 2021

Goldschmidt2021 Abstracts

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contrasting

confidence: 58%

“…All samples showed an increase in nutrient content compared to reported values in 'fresh' ashes [4]. However, nutrient concentrations vary across the landfill, reflecting the partial vegetation of the site.…”

mentioning

confidence: 60%

Metalloid mobility of aged landfill - the negative impact of the forgotten

Petrović¹,

Fiket²,

Dolenec³

et al. 2021

Goldschmidt2021 Abstracts

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“…Elements of greater toxicity were found in higher concentrations in the Cesar region. These findings are concerning as this area experiences higher rates of natural rainfall, which increases the mobility of toxic elements via erosion/runoff, overland flow, water percolation, and oxidation [89,90]. In old coal mining areas, it is necessary to implement projects with a high technological degree of environmental recovery that guarantee environmental sustainability; with the geomorphic remodeling of the degraded area, reconstruction of the soil and vegetation cover, hydrological stability with the direction of drainages, and contour lines, enabling ecological restoration in favor of the quality of hydrological and terrestrial ecosystems [89,91].…”

Section: Characteristics Identified In the Analyzed Samplesmentioning

confidence: 99%

Hazardous Elements in Sediments Detected in Former Decommissioned Coal Mining Areas in Colombia: A Need for Environmental Recovery

et al. 2023

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This study demonstrates an investigation into nanomineralogical and geochemical evolution for the detection of hazardous elements from old, abandoned coal mining deposits capable of causing negative environmental impacts. The general objective of this study is to evaluate the number of nanoparticulate chemical elements in sediments collected during the years 2017 and 2022 from deactivated coal mining areas in the La Guajíra and Cesar regions of Colombia. Sediments were collected and analyzed from areas that experienced spontaneous coal combustion (SCC). The analysis consisted of traditional mineralogical analysis by X-ray diffraction and Raman spectroscopy, nanomineralogy by field emission scanning electron microscope-FE-SEM, and high-resolution transmission electron microscope-HR-TEM (energy dispersive X-ray microanalysis system-EDS). The analyzed sediment samples contained high proportions of amorphous materials containing the chemical elements As, Cl, Hg, Mo, Pb, Sb, and Se. This study emphasizes the need to implement environmental recovery projects at former, now abandoned coal extraction areas located in the investigated region, as they have negative effects on the environment and human health across large regions.

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“…Not all coal is created equal and geographic disparities result in different elemental concentrations in different coal deposits [27,28,30]. Several authors who have studied coal tailings in different countries have reported enormous variability in chemical and mineralogical compositions exhibited by mineral coal [21,27,30,32,33]; therefore, identification of possibilities for improvements in the extraction of high-value materials in coal areas is of paramount importance [34,35].…”

Section: Introductionmentioning

confidence: 99%

Brazilian Coal Tailings Projects: Advanced Study of Sustainable Using FIB-SEM and HR-TEM

et al. 2022

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The objective of this study is to obtain a more detailed assessment of particles that contain rare-earth elements (REEs) in abandoned deposits of Brazilian fine coal tailings (BFCTs), so as to aid current coal mining industries in the identification of methodologies for extracting such elements (Santa Catarina State, Brazil). The BFCT areas were sampled for traditional mineralogical analysis by X-ray Diffraction, Raman Spectroscopy and nanomineralogy by a dual beam focused ion beam (FIB) coupled with field emission scanning electron microscopy (FE-SEM) and high-resolution transmission electron microscopy (HR-TEM) coupled with an energy dispersive X-ray microanalysis system (EDS). The results show that the smaller the sampled coal fines were, the higher the proportion of rare-earth elements they contained. Although the concentration of REEs is below what would normally be considered an economic grade, the fact that these deposits are already ground and close to the surface negate the need for mining (only uncovering). This makes it significantly easier for REEs to be extracted. In addition, owing to their proximity to road and rail transport in the regions under study, the opportunity exists for such resources (BFCTs) to be utilized as a secondary market as opposed to simply being discarded as has been done in the past.

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Geochemical signature of superhigh organic sulphur Raša coals and the mobility of toxic trace elements from combustion products and polluted soils near the Plomin coal-fired power station in Croatia

Cited by 12 publications

References 52 publications

Metalloid mobility of aged landfill - the negative impact of the forgotten

Metalloid mobility of aged landfill - the negative impact of the forgotten

Hazardous Elements in Sediments Detected in Former Decommissioned Coal Mining Areas in Colombia: A Need for Environmental Recovery

Brazilian Coal Tailings Projects: Advanced Study of Sustainable Using FIB-SEM and HR-TEM

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