Evaluating the Heavy Metals-Associated
Ecological Risks in Soil and Sediments of
a Decommissioned Tunisian Mine

Yousfi, Rabiaa; Ouaer, Zouheir El; Dahri, Noura; Ouddane, Baghdad; Rigane, Hafedh

doi:10.15244/pjoes/86198

Cited by 12 publications

(3 citation statements)

References 20 publications

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“…The development of human production activities cannot be separated from mine resources, especially in developing countries, where mines and their related industries play a crucial role in their economic growth and industrial development [1,2]. However, largescale open-pit mining operations (e.g., mining, mine processing, and waste tailings disposal) often result in serious damage to the environment surrounding the mines, when the soil is affected negatively for the longest time and the widest range [3].…”

Section: Introductionmentioning

confidence: 99%

Effect of Carbide Slag Combined with Biochar on Improving Acidic Soil of Copper Sulfide Mines

et al. 2023

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Heavy metal-rich acidic soils of copper sulfide mines can easily cause harm to the surrounding environment and ecosystem safety if not treated properly. Currently, the most common method of mine ecological remediation is to improve acidic soils of copper sulfide mines by adding different types of amendments. In this paper, different dosages of biochar and carbide slag applied singly and in combination were designed to investigate the changes of physicochemical properties and ryegrass growth in the acidic soil of copper sulfide mines. Through soil incubation experiments and potting tests, different treatments explored the improvement effect of carbide slag combined with biochar on the acidic soil of copper sulfide mines. Then, it was found that 2% (w/w) carbide slag in combination with 10% (w/w) biochar had the best effect on the improvement of copper-sulfide mine acidic soil. Among them, carbide slag significantly increased the pH, cation exchange capacity (CEC) and acid neutralization capacity (ANC), and reduced the electrical conductivity (EC), net acid generation (NAG) and sulfate ion (SO42−) concentrations in the acidic soil of copper sulfide mines; biochar obviously reduced the bio-effectiveness of heavy metals Cu, Pb and Zn, and DPTA-Cu, Pb and Zn decreased by 8~80%, 7~76% and 17~79%, respectively. Apart from that, there was a positive cooperativity between carbide slag and biochar, and their application effectively controlled the acidification process and heavy metal toxicity in the acidic soil of copper sulfide mines. In summary, the results will provide a theoretical basis for the large-scale reclamation of carbide slag and biochar in improving acidic soils of copper sulfide mines, filling the gap of calcium carbide slag and biochar in soil remediation.

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Section: Introductionmentioning

confidence: 99%

Effect of Carbide Slag Combined with Biochar on Improving Acidic Soil of Copper Sulfide Mines

et al. 2023

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“…The development of human production activities cannot be separated from mine resources, especially in developing countries, where mines and their related industries play a crucial role in their economic growth and industrial development (Hilson and Murck, 2000;Yous et al, 2019). However, large-scale open-pit mining operations (e.g., mining, mine processing, and waste tailings disposal) often result in serious damage to the environment surrounding the mines, when the soil is affected negatively for the longest time and the widest range (Klik et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Effect of Carbide Slag Combined with Biochar on Improving Acidic Soil of Copper Sulfide Mines

han¹,

Xue²,

Zhang³

et al. 2022

SSRN Journal

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“…Heavy metals emitted from stationary and mobile sources can be transported to water, air and soil [4][5], and can even enter plants, animals and human bodies [5][6]. Their initial toxicity and the effects of bioaccumulation [7] have led to many heavy metal emissions being regulated. Heavy metals may cause both human health issues and adverse environmental impacts [8][9].…”

Section: Introductionmentioning

confidence: 99%

Pollution Assessment of Heavy Metals in Roadside Agricultural Soils

Seghier¹,

Keltoum²

2020

Pol. J. Environ. Stud.

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Soil contamination of heavy metals is widespread, raising concerns about agricultural risks. We are investigating the concentrations and forms of the heavy metals lead, zinc, chromium, cobalt, nickel, cadmium and copper in agricultural soils near intensive traffic areas in two major cities in western Algeria: Tlemcen and Sidi Bel Abbes. We analyzed four soil samples cultivated with grapes (E1 and E2) and wheat (E3 and E4). The average concentrations of lead, cadmium, chromium and copper in these agricultural lands exceeded the environmental quality standards of soil in Europe. The average of total concentrations of nickel, cobalt and zinc are less than the environmental quality standards of soil in Europe, which is consistent with the obtained results of the contamination degrees and the potential ecological risk of a single heavy metal. (E r i ), E r i were classified as considerable (80≤E r i <160), high (160≤E r i <320); that, Eir average for Pb in all soil samples is 68.67 and 162.91 for the Cd. As a result, the ERI of the four soil samples was high in all cases. When using sequential extraction, our results show that cadmium compounds are preferentially concentrated in the carbonate fraction, acid-extractable fraction and residual phase of the soil, causing a risk because of its high value. Co was concentrated in the phases of reducible and oxidizable, while Pb, Zn, Cu and Ni are highly concentrated in the remaining two remaining phases, which are weak in reducible and oxidizable phases. These results show that these minerals are less readily available in the examined soil. There is also a correlation between nickel-zinc (Ni-Zn), cobalt, zinc (Co-Zn), cadmium and nickel (Cd-Ni), cadmium and chromium (Cd-Cr), cadmium and lead (Cd-Pb), copper and zinc (Cu-Zn), and chromium and lead (Cr-Pb). Soil parameters such as pH, CEC, TC% and organic matter content should also be taken into consideration when determining soil pollution status.

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Evaluating the Heavy Metals-Associated Ecological Risks in Soil and Sediments of a Decommissioned Tunisian Mine

Cited by 12 publications

References 20 publications

Effect of Carbide Slag Combined with Biochar on Improving Acidic Soil of Copper Sulfide Mines

Effect of Carbide Slag Combined with Biochar on Improving Acidic Soil of Copper Sulfide Mines

Effect of Carbide Slag Combined with Biochar on Improving Acidic Soil of Copper Sulfide Mines

Pollution Assessment of Heavy Metals in Roadside Agricultural Soils

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