Trend evolution of physicochemical parameters and metals mobility in acidic and complex mine tailings long exposed to severe mediterranean climatic conditions: Sidi Driss tailings case (NW-Tunisia)

Trifi, Mariem; Charef, Abdelkrim; Dermech, Mohja; Azouzi, Rim; Chalghoum, Abdelkader; Hjiri, Bilel; Sassi, Moncef Ben

doi:10.1016/j.jafrearsci.2019.05.017

Cited by 13 publications

(6 citation statements)

References 55 publications

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“…In addition, the data of this study are in agreement with observations made by other authors, which indicate that during the neoformation of supergene minerals, they trap elements-Pb, Zn, Cd, As and Cu among others-, as well as SO 4 2− which are available in mine tailings during dry periods and discharged by dissolution during precipitation events [1,6,9,10,42,53,58,67,68].…”

Section: Statistical Resultssupporting

confidence: 92%

“…Thus, some significant correlations have been found for primary and secondary minerals, such as those described between Fe-Al oxides with Ni and As [54], between Ni, SO 4 , TDS, pH and EC with each other [55] or between pH and SO 4 [56], have not been significant for the supergene minerals considered in this study. However, some described correlations between EC, pH and texture of mining waste sediments that seem to determine the mineralogical composition, dissolution and oxidation processes and their influence on the physicochemical properties and mobility of potentially toxic elements associated with metallic mining waste, may be key in the formation of saline efflorescences from these mining tailings [1,6,9,10,53,57,58]. Similarly, different types of parent materials can generate soils and residues enriched in Ni and Cr [59], while a distinctly clayey and Fe-enriched texture can act to enrich soils in As [60]; something that could explain the presence of these elements in salt crusts present in these environments.…”

Section: Statistical Resultsmentioning

confidence: 99%

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Environmental Implications of Saline Efflorescence Associated with Metallic Mining Waste in a Mediterranean Region

Alcolea-Rubio

Caparrós-Ríos

Robles-Arenas

et al. 2022

Land

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Salt efflorescences from metal sulphides and their waste are important drivers of pollution both in and around mining areas. However, little is known about these supergene minerals, particularly in the mining areas of the Mediterranean. This study aims to characterise saline efflorescences and their leachates from a Mediterranean mining area located in Southeast Spain. The physicochemical characteristics were determined using stereomicroscopy and compositional analysis, with the following techniques: XRD, WDXRF and TG-MS. Additionally, to assess the risk and potential mobility of their analytes, the samples were subjected to the leaching test DIN 38414-S4. The results showed that the salt efflorescences presented a wide range of crystalline habits and colours. Sulphates were by far the largest mineral group, followed by silicates, oxides and sulphides. Their geochemistry was dominated by elements such as S or Fe, although other potentially toxic elements such as Cd, As, Zn, Pb, Ni and Cu were also present. Due to their high metal(loid) concentrations, the salt crusts studied may act as sources of environmental contaminants, demonstrating that their leachates pose a considerable risk to soil and drinking water quality. An analysis of the correlations and provenances of the components of the salt efflorescences revealed the possible presence of some rare supergene minerals of great interest, such as cuprocopiapite and Pb-As-jarosite.

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Section: Statistical Resultssupporting

confidence: 92%

Section: Statistical Resultsmentioning

confidence: 99%

Environmental Implications of Saline Efflorescence Associated with Metallic Mining Waste in a Mediterranean Region

Alcolea-Rubio

Caparrós-Ríos

Robles-Arenas

et al. 2022

Land

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“…PTEs can affect the biochemical functioning of soil and plant growth, alter the composition of waters and sediments, and enter the food chain (Garau et al, 2014(Garau et al, , 2017. Therefore, the recovery of abandoned mining sites and neighbouring areas affected by contamination is necessary through appropriate interventions that can limit the possible risks associated with PTE pollution (Trifi et al, 2019). In situ chemical stabilization, a technique that involves the addition to the contaminated soil of inorganic and/or organic materials capable of stabilizing contaminants through reactions of adsorption, immobilization and/or precipitation, could represent an appropriate technique to remediate contaminated mine soils (Manzano et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Impact of Eisenia fetida earthworms and biochar on potentially toxic element mobility and health of a contaminated soil

Garau

Sizmur

Coole

et al. 2022

Science of The Total Environment

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“…Temperature affects the oxidation-reduction reaction rate in the environment and the oxidation-reduction reaction affects the mobility of heavy metals. Previous research has shown that, compared to the initial stable heavy metal activities, the oxidation-reduction reaction in mine tailings led to an increase in Pb, Zn, and Mn activities by 42–69% (Trifi et al, 2019). In cold regions, the amounts of heavy metals leached in tailings increases with the increase in temperature (Fu et al, 2019).…”

Section: Discussionmentioning

confidence: 99%

Heavy metal pollution characteristics of soil around a copper-nickel mine tailings pond in the northwest arid area of China and evaluation of desert phytoremediation potential

Shi

Jin

Zhou

et al. 2022

Preprint

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Phytoextraction and phytostabilization are two mechanisms used by plants to remove and stabilize heavy metals in soil. However, there has been little research on the extraction/stabilization of heavy metals by desert plants in arid areas. This study analyzed eight heavy metals (Cr, Ni, Cu, Zn, Cd, Pb, Mn, and As) in 10 desert plants and their growth matrices. In addition, the single factor pollution index and Nemerow comprehensive pollution index were used to evaluate soil pollution. Based on the biological accumulation factor and the biological concentration factor, the fuzzy evaluation method was used to evaluate plant extraction/stability potentials for heavy metals. The results showed that Cd, Cu, Ni, and Cr in the soil around the tailings pond were at the heavy pollution level, Mn and Pb pollution was moderate, and Zn and As pollution was light. The matrix factorization model showed that Cu and Ni came from industrial pollution; Cd and Cr came from atmospheric deposition and agricultural pollution; Pb came from traffic pollution; and Mn, Zn, and As came from natural sources. The metal contents of the desert plants exceeded the standard for normal plants, of which Cr contents in the Atriplex patens and Ammophila breviligulata Fernald aboveground parts were 35.63 and 53.77 mg/kg respectively, and the Ni contents in the Klasea centauroides subsp. polycephala (Iljin) L. Martins underground parts and the A. breviligulata Fernald aboveground parts were 102.67 and 101.67 mg/kg, respectively, exceeding the maximum toxicity threshold for Cr and Ni. Ammophila breviligulata Fernald had the highest plant comprehensive extraction coefficient (CEI) and plant comprehensive stability coefficient (CSI) at 0.81 and 0.83 respectively, indicating that it has strong heavy metal extraction and stabilization abilities. Therefore, A. breviligulata Fernald can be selected as a remediation species for heavy metal pollution in the soil around tailings reservoir areas.

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Trend evolution of physicochemical parameters and metals mobility in acidic and complex mine tailings long exposed to severe mediterranean climatic conditions: Sidi Driss tailings case (NW-Tunisia)

Cited by 13 publications

References 55 publications

Environmental Implications of Saline Efflorescence Associated with Metallic Mining Waste in a Mediterranean Region

Environmental Implications of Saline Efflorescence Associated with Metallic Mining Waste in a Mediterranean Region

Impact of Eisenia fetida earthworms and biochar on potentially toxic element mobility and health of a contaminated soil

Heavy metal pollution characteristics of soil around a copper-nickel mine tailings pond in the northwest arid area of China and evaluation of desert phytoremediation potential

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