The leaching behaviors of lead, zinc, and sulfate in pyrite ash contaminated soil: mineralogical assessments and environmental implications

Liu, Yikai; Molinari, Simone; Dalconi, Maria Chiara; Valentini, Luca; Ricci, Giulia; Carrer, Claudio; Ferrari, Giorgio; Artioli, Gilberto

doi:10.1016/j.jece.2023.109687

Cited by 9 publications

(7 citation statements)

References 87 publications

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“…What is also important is the role of biological weathering (associated with the presence of fungi, bacteria, algae and other organisms, like vertebrates). Microorganisms make such elements as Fe, Ca and Si transit as anions into the solution and form complexes with organic secretions 15 , 32 . The role of the flora in weathering processes, associated with the formation of such complexes has been described by numerous authors 33 – 37 .…”

Section: Resultsmentioning

confidence: 99%

Incongruent dissolution of silicates and its impact on the environment: an example of a talc mine

Kicińska,

Pomykała

2023

Sci Rep

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The paper analyzes the process of incongruent dissolution of silicates taking place in close proximity to a talc mine. The chemical and phase composition as well as the concentrations and mobility of potentially toxic elements (PTE) in research material with varying levels of weathering were determined using instrumental (XRF, XRD) and chemical methods (extractions: BCR, aqua regia, water leaching, 0.05 M EDTA). It was demonstrated that the predominant minerals in the weathering crust include weathering-resistant minerals (i.e. quartz and muscovite) and secondary minerals (kaolinite, illite and interstratified minerals, vermiculite/chlorite) and that the predominant processes are hydrolysis and oxidation. The weathering process has an impact on the complexity of the chemical and mineral composition and the diverse structure of the weathering crust. A layer of Fe and Al oxides and hydroxides forms in the upper part of the weathering crust, while the amount of silica decreases. Low-mobility elements (i.e. Si, Al and Fe) react on the phase separation surface, causing the formation of clay minerals (i.e. vermiculite, montmorillonite) or Al and Fe hydroxides (e.g. goethite). The duration of weathering causes an increase in the content of PTEs in solid materials: multifold in the case of Cr (15), Ba (9), Pb (7), Zn (6) and considerably lower in the case of V (1.3), Sr (0.8) and Co (0.4). It was demonstrated that PTEs co-occur in several chemical fractions in the weathering crust and that the highest share of their total concentration are cations incorporated in the crystal lattice of minerals and bound by strong crystalline bonds (F4 46%). The lowest share was observed for the reducible fraction (9%) and the share of the oxidizable fraction was 29% The most mobile cations connected by the weakest bonds comprised only 16% of the total concentration. Based on the content of the readily soluble fraction of PTEs, it was concluded that the degree of weathering does not increase the environmental risk, but actually reduces it for Cr, Cr and Pb. The obtained Ecological Risk Index (ERI) values indicate that the ecological risk associated with the elements tested is low for the entire area, which means that natural weathering processes do not have any impact on environmental pollution.

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Section: Resultsmentioning

confidence: 99%

Incongruent dissolution of silicates and its impact on the environment: an example of a talc mine

Kicińska,

Pomykała

2023

Sci Rep

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“…High Zn = 6.0 mg kg −1 ; medium Zn = 1.5 mg kg −1 ; low Zn = 0 mg kg −1 . P rates (mg kg -1 ) 0 3 0 6 0 9 0 1 8 0 Zn Exchangeable Entisol (mg kg depends primarily on the chemical relationships of these elements in the rhizosphere soil before plant uptake, even in soils with contrasting textures (R. Huang et al, 2022;Kong et al, 2022;Liu et al, 2023).…”

Section: Discussionmentioning

confidence: 99%

“…(2023) found that adequate Zn supply increased P uptake in cotton plants grown at low P supply. The control of nutrient availability in the soil solution depends primarily on the chemical relationships of these elements in the rhizosphere soil before plant uptake, even in soils with contrasting textures (R. Huang et al., 2022; Kong et al., 2022; Liu et al., 2023). These chemical modifications in the rhizosphere soil of cotton plants impacted the dynamics of P uptake.…”

Section: Discussionmentioning

confidence: 99%

“…Phosphate fertilization influences the mobility of metal ions (C. Huang et al., 2022; Kong et al., 2022; Liu et al., 2023). These results confirm the usefulness of the evaluation of the effect of the P–Zn interaction on the availability of these nutrients in the soil since the interaction modulates the adsorption of P and Zn in the soil, as well as promotes plant adaptations that in turn modify the availability of P–Zn in rhizosphere soil.…”

Section: Introductionmentioning

confidence: 99%

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Low zinc availability limits the response to phosphorus fertilization in cotton

Santos,

Macedo,

Rodrigues

et al. 2024

J. Plant Nutr. Soil Sci.

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BackgroundCotton productivity is commonly limited by the imbalanced nutritional status of phosphorus (P) and zinc (Zn) in Brazil. Evaluating the effect of the P–Zn interaction on nutrient availability in soil is crucial, as this interaction promotes plant adaptations that modify the availability of these nutrients in the rhizosphere. However, the influence of root growth on the P–Zn interaction and its adsorption in rhizosphere soil remains poorly understood.AimWe tested the interaction of P and Zn rates in two classes of soil cultivated with cotton. The aim of this investigation was to evaluate the P and Zn availability and adsorption capacity by rhizosphere soils cultivated with cotton plants subjected to P and Zn rates.MethodsCotton plants were grown under greenhouse conditions in two different soils (Entisol and Oxisol), with different P and Zn rates. Phosphorus fractionation and Zn sequential extraction were assessed in rhizosphere soil, while total P and Zn concentrations were measured in the shoot and roots.ResultsSoil type significantly affected the P–Zn availabilities on rhizosphere soils. Although increased P‐rates raised P‐soil availability on bulk and rhizosphere soils, cotton growth was not increased under low soil‐Zn availability. The labile inorganic P content was influenced by P and Zn rates just in Oxisol. In both soils, the Zn‐ Zn‐exchangeable content was decreased by P rates, while Zn bound to oxides increased.ConclusionsSoil‐type effects on P–Zn interaction could have important implications for increasing cotton productivity. Increased cotton productivity by P application was only achieved with an adequate supply of Zn.

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“…It is necessary to understand the mineralogy of the coal residues that incentive AMD production by mineral as pyrite and jarosite and the concentration of the minerals that work as neutralizers: calcite, aragonite, and siderite (Çelebi and Ribeiro, 2023). The release of PTE will depend on the exposure leaching time and the pH (Li et al, 2022;Liu et al, 2023).…”

Section: Physical and Chemical Parameters And Elutriate Ptementioning

confidence: 99%

Assessment of ecotoxicological effects of Fojo coal mine waste elutriate in aquatic species (Douro Coalfield, North Portugal)

Narayan,

Diogo,

Mansilha

et al. 2024

Front. Toxicol.

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Introduction: The exploitation of anthracite A in the Pejão mining complex (Douro Coalfield, North Portugal) resulted in the formation of several coal waste piles without proper environmental control. In 2017, a new pedological zonation emerged in the Fojo area, after the ignition and self-burning of some of the coal waste piles, namely: unburned coal waste (UW); burned coal waste, and a cover layer (BW and CL, respectively); uphill soil (US); mixed burned coal waste (MBW); downhill soil (DS). This study aimed to evaluate the toxic effects of 25 soil elutriates from different pedological materials.Methods:Allivibrio fischeri bioluminescence inhibition assay, Lemna minor growth inhibition assay, and Daphnia magna acute assay were used to assess the toxicity effects. Additionally, total chlorophyll and malondialdehyde (MDA) content and catalase (CAT) activity were also evaluated in L. minor.Results and Discussion: The results obtained from each endpoint demonstrated the extremely heterogeneous nature of soil properties, and the species showed different sensibilities to soil elutriates, however, in general, the species showed the same sensitivity trend (A. fischeri > L. minor > D. magna). The potentially toxic elements (PTE) present in the soil elutriates (e.g., Al, Pb, Cd, Ni, Zn) affected significantly the species understudy. All elutriates revealed toxicity for A. fischeri, while US1 and UW5 were the most toxic for L. minor (growth inhibition and significant alterations in CAT activity) and D. magna (100% mortality). This study highlights the importance of studying soil aqueous phase toxicity since the mobilization and percolation of bioavailable PTE can cause environmental impacts on aquatic ecosystems and biota.

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The leaching behaviors of lead, zinc, and sulfate in pyrite ash contaminated soil: mineralogical assessments and environmental implications

Cited by 9 publications

References 87 publications

Incongruent dissolution of silicates and its impact on the environment: an example of a talc mine

Incongruent dissolution of silicates and its impact on the environment: an example of a talc mine

Low zinc availability limits the response to phosphorus fertilization in cotton

Assessment of ecotoxicological effects of Fojo coal mine waste elutriate in aquatic species (Douro Coalfield, North Portugal)

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