Chemical and mineralogical characterization of weathering products in mine wastes, soil, and sediment from the abandoned Pb/Zn mine in Skikda, Algeria

Khelfaoui, Malika; Medjram, Mohamed Salah; Kabir, Abdenour; Zouied, Daoiya; Karima, Mehri; Chikha, Olfa; Trabelsi, Malika Ayadi

doi:10.1007/s12665-020-09043-x

Cited by 21 publications

(5 citation statements)

References 40 publications

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“…The solubilization of these elements shows that the bearing minerals are not completely stable under the physicochemical conditions of the tests, that is, such minerals present in the studied tailings behave as potential sources of water pollution under surface conditions. In their study of the chemical and mineralogical characterization of the weathering products from an abandoned Pb/Zn mine, Khelfaoui et al [55] report the presence of significant concentrations of certain heavy metals (Pb, Zn, Fe, Mn, Cd, and Hg) in the soil due to the leaching of waste rock and tailings. Perlatti et al [56] indicate that high concentrations of metals contained in tailings remain unchanged even during long periods of exposure; however, the action of weathering and erosion causes a gradual release of these metals into the environment, thus constituting a source of pollution for the latter.…”

Section: Leaching Testsmentioning

confidence: 99%

Mineral Weathering and Metal Leaching under Meteoric Conditions in F-(Ba-Pb-Zn) Mining Waste of Hammam Zriba (NE Tunisia)

Kaba,

Souissi,

Keita

et al. 2023

Materials

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Mining waste is an obvious source of environmental pollution due to the presence of heavy metals, which can contaminate soils, water resources, sediments, air, and people living nearby. The F-(Ba-Pb-Zn) deposit of Hammam Zriba located in northeast Tunisia, 8 km southeast of Zaghouan was intensively exploited from 1970 to 1992. More than 250,000 m3 of flotation tailings were produced and stored in the open air in three dumps without any measure of environmental protection. Thus, in this paper, mineralogical and chemical characterization, especially the sulfide and carbonate phases, were carried out to evaluate the potential for acid mining drainage (AMD) and metal leaching (ML). Conventional analytical methods (XRD, XRF, SEM) have revealed that this mining waste contains on average 34.8% barite–celestine series, 26.6% calcite, 23% quartz, 6.3% anglesite, 4.8% fluorite, 2.1% pyrite, and 0.4% sphalerite. The content of sulfides is less important. The tailing leaching tests (AFNOR NFX 31-210 standard) did not generate acidic leachate (pH: 8.3). The acidity produced by sulfide oxidation was neutralized by calcite present in abundance. Furthermore, the leaching tests yielded leachates with high concentrations of heavy metals, above the authorized thresholds. This high mobilization rate in potential toxic elements (PTE) represents a contamination risk for the environment.

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Section: Leaching Testsmentioning

confidence: 99%

Mineral Weathering and Metal Leaching under Meteoric Conditions in F-(Ba-Pb-Zn) Mining Waste of Hammam Zriba (NE Tunisia)

Kaba,

Souissi,

Keita

et al. 2023

Materials

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“…Modern exploitation started in 1890 at the Dar El Hanout streams, with a very low production. From 1913 onwards the exploitation became regular [12,13]. The management of the lead-zinc deposit was stopped in 1976; since then, baryte was exploited in the open pit until 1984, when the mine was closed.…”

Section: Study Areamentioning

confidence: 99%

“…It is composed of a series of veins with sulphide mineralisation containing galena (PbS), sphalerite (ZnS), pyrite-marcasite and barite [8]. Today, after about half a century of cessation of all mining activities, Sidi Kambar mine still constitute a potential direct pollutant for the environment and for the health of the neighbouring populations [9]. Indeed, during its activities, it has generated several million tons of waste that have been abandoned without any preservation measures.…”

Section: Introductionmentioning

confidence: 99%

Surface Water Contamination by Mining Wastes: Case of the Sidi Kambar Region (Skikda North-East Algeria)

Fekrache

Boudeffa

2023

Ecological Chemistry and Engineering S

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The objective of this work is to assess the contamination of the Essouk stream, under acid drainage from the Sidi Kambar mine (southwest of Skikda, Algeria), which has been widely exploited during the previous decades. The methodology was conducted to control the current state of water chemistry, its evolution in space and time according to the variation of water physicochemical parameters and the content of trace metals (Pb, Fe, and Zn). In general, Essouk stream are highly sulphated (reached 598.56 mg/L) and have an elevated salinity, resulting in a high conductivity (1925 µS/cm) and presented a low pH (3.01). In addition, Fe, Pb and Zn contents reached 5.17 mg/L, 2.05 mg/L and 4.05 mg/L, respectively. Such results were linked to the bedrock of Sidi Kambar that is composed of galena, pyrite and sphalerite.

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“…1). contaminated by AMD, showed serious contaminations with some metals (Zn, Fe, Pb, Mn, Hg, and Cd) [27].…”

Section: A Sidi Kamber Mine Site Description and Samplingmentioning

confidence: 99%

Phosphate Amendments for the Inhibition of Acid Mine Drainage Generated from Sidi Kamber Tailings Facility

Merchichi

Hamou

Benzaazoua

et al. 2022

ENPESJ

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The aims of this paper was to evaluate the efficiency of phosphates product and by-products from the Djebel Onk mine for the control of acidic mine drainage generated by exposure of Sidi Kamber mine tailings to climatic conditions. Kinetic tests in humidity cells were carried out according to the modified ASTM standard, was used to invistigate the geochemical behaviour of the Sidi Kamber tailings mixed with phosphate materials (phosphatic limestone wastes, raw low grade phosphate ore and phosphate mine tailings) after being characterized. All amendment compositions led to an increase of the pH of the leachate from approximately 3 to circum-neutral values. Humidity cells experiments indicated that the materials were adequate to immobilize Pb, Zn, Cu and Fe by about 99% and prevent their release through the tailings. The tests have also shown that the metals concentrations within the leachate are lower than the limits allowed by Algerian legislation for industrial liquid effluents. Among the tested material amendments, PLW was more effective than other products in immobilizing metals. The results are most probably related to their Ca-carbonate content and/or adsorption capacity.

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Chemical and mineralogical characterization of weathering products in mine wastes, soil, and sediment from the abandoned Pb/Zn mine in Skikda, Algeria

Cited by 21 publications

References 40 publications

Mineral Weathering and Metal Leaching under Meteoric Conditions in F-(Ba-Pb-Zn) Mining Waste of Hammam Zriba (NE Tunisia)

Mineral Weathering and Metal Leaching under Meteoric Conditions in F-(Ba-Pb-Zn) Mining Waste of Hammam Zriba (NE Tunisia)

Surface Water Contamination by Mining Wastes: Case of the Sidi Kambar Region (Skikda North-East Algeria)

Phosphate Amendments for the Inhibition of Acid Mine Drainage Generated from Sidi Kamber Tailings Facility

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