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Environmental toxicity assessment of mining waste from an abandoned Zn-Pb mine

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Category: Content №4 2024

Last Updated on 28 August 2024

Published on 30 November -0001

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Authors:

F.Hamrani*, orcid.org/0009-0008-5155-8422, Department of Mining Engineering, National Polytechnic School of Algiers, Algiers, Algeria, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

A.Boutaleb, orcid.org/0000-0001-6931-4540, LMMA, FSTGAT, USTHB,University of Science and Technology Houari Boumediene), Bab Ezzouar, Algiers, Algeria

M.Ould Hamou, orcid.org/0000-0002-8770-5323, Department of Mining Engineering, National Polytechnic School of Algiers, Algiers, Algeria

A.Merchichi, orcid.org/0000-0001-8136-601X, Department of Mining Engineering, National Polytechnic School of Algiers, Algiers, Algeria

A.Bouras, orcid.org/0009-0001-0840-7679, Badji Mokhtar University, Annaba, Algeria

A.Babczynska, orcid.org/0000-0002-0000-789X, University of Silesia, Faculty of Natural Sciences, Institute of Biology, Biotechnology and Environmental Protection, Bankowa Katowice, Poland

* Corresponding author e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

повний текст / full article

Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu. 2024, (4): 080 - 085

https://doi.org/10.33271/nvngu/2024-4/080

Abstract:

Purpose. To assess the impact of mining waste on the heavy metal content of water surfaces, plants, and topsoil near the tailings dam of a Zn-Pb mine using both biotests and analytical methods.

Methodology. A battery of microbiotests on different animal and plant species was carried out, making it possible to evaluate the toxic effect of residues and surrounding soils on living organisms. Furthermore, the possible relationship between the observed toxicity and the results of the physicochemical analysis of the samples was studied.

Findings. The tests showed that the topsoil in contact with the tailings dam is slightly toxic to the living organisms used while the mining tailings are toxic or even very toxic. The heavy metal content of the samples is particularly high for Fe, Zn, Pb and Cu. The correlation of physic-chemical parameters and the results of microbiotests using the principal components analysis (PCA) and the multiple correspondence factor analysis (MCFA) indicate that the toxicity of tailings and the surrounding topsoil can be associated with anthropogenic mining activity.

Originality. The study aimed to assess the impact of mining waste on the heavy metal content using biotests and analytical methods. The evaluation considers the concentrations of the samples (highly concentrated samples and samples after dilution) and the different phases of exposure (solid, liquid) for a more detailed assessment of the potential toxicity of the samples.

Practical value. It is important to conduct a comprehensive assessment of mining waste and the risks it may pose to humans and the environment in order to develop an adequate rehabilitation plan.

Keywords: toxicity, mine waste, lead-zinc (Zn-Pb) mine, microbiotests, tailings, soil, heavy metals, mining activity

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