Coal-Fired Thermal Power Plants and Mercury Risks: Status and Impacts to Realize Minamata Convention Promises

Singh, Sunidhi; Dhyani, Shalini; Pujari, Paras R.

doi:10.1007/s44177-023-00042-8

Cited by 3 publications

(2 citation statements)

References 54 publications

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“…According to the United National Environment Programme (UNEP), Russia, China, South Africa, the USA, Ghana, Colombia, and Indonesia contribute 56% of total anthropogenic emissions to the atmosphere (Singh, Dhyani, and Pujari, 2022). Coal washing and burning are among the major sources of anthropogenic Hg emissions (Pacyna, 1987).…”

Section: Introductionmentioning

confidence: 99%

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Selected trace element concentrations in run-of-mine coal, discard, and coal product, and environmental implications

Mashishi,

Okonkwo,

Malehase

2024

J. S. Afr. Inst. Min. Metall.

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The concentrations of selected trace elements (As, Cd, Hg, and Pb in run-of-mine (ROM) coal, discard, and coal product were investigated to assess the efficiency of beneficiation in reducing trace element concentrations and ascertain any implications regarding environmental compliance to regulatory frameworks. Samples were collected from a colliery in Mpumalanga Province twice a month for a period of 24 months. The samples were ashed to approximately 0.21 mm, then digested in a mixture of 70% HNO3 and 40% HF and analysed using inductively coupled plasma-mass spectrometry (ICP-MS). Except for Pb, the mean concentration of all elements decreased from the ROM stage to the coal product stage. The order in which trace elements occurred from the highest to lowest throughout the production chain was Pb>As>Hg>Cd. With the exception of Cd, the mean trace element concentrations in the discard were above the total concentration threshold (TCT) set for landfill disposal. The As, Hg, and Cd concentrations in the product were well below the thresholds for all land uses. However, Pb concentrations in the product coal were above legal limits, which is of concern with regard to environmental compliance and the performance and marketability of the product.

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Section: Introductionmentioning

confidence: 99%

“…The Minamata Convention, which was adopted in 2013, regulates the sources of Hg, trade in Hg, manufacturing methods that use Hg compounds, Hg products, artisanal and small-scale gold mining, emission into air, deposition on land and in water, storage, wastage, polluted sites. and health implications (Singh, Dhyani, and Pujari, 2022).…”

Section: Introductionmentioning

confidence: 99%

Selected trace element concentrations in run-of-mine coal, discard, and coal product, and environmental implications

Mashishi,

Okonkwo,

Malehase

2024

J. S. Afr. Inst. Min. Metall.

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Bioremediation of environments contaminated with mercury. Present and perspectives

González-Reguero

Mora

Lobo

et al. 2023

World J Microbiol Biotechnol

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Mercury is a highly toxic heavy metal whose emission sources can be both natural and the result of anthropic activity. Its polluting action on soils, and its ability to spread through the atmosphere and aquatic environments, constitutes a threat to human and environmental health; both for its bioaccumulation capacity and for biomagnification through the trophic chain. For this reason, there is a growing scientific and social interest in the reduction of this heavy metal in ecosystems. Bioremediation based on the use of microorganisms and/or plants is postulated as a sustainable alternative to traditional physicochemical methods. The main strategies used for this purpose (individually or in combination) are the volatilization of the contaminant, biosorption, phytoextraction and phytoremediation. All these tools are based on taking advantage of the natural and evolutionary capacity that different organisms have developed to adapt to the presence of various pollutants in the environment. Based on the consulted bibliography, these bioremediation methodologies focus on the use of microorganisms (freely or associated with plants) have been successfully applied in different ecosystems, postulating themselves as a respectful alternative for the future for the recovery of degraded environments. For these reasons there is a growing interest in the scientific community to design and use new techniques in a “One Health” context, which allow interpreting the positive impact of bioremediation. In this sense, the universalization of Omics techniques has allowed to abound in the knowledge of new bacterial taxa, and their biotechnological application. This study pretends to cover the present knowledge about mercury bioremediation techniques. In the same way, some new techniques and perspectives are presented in order to expand the frontiers of future research.

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Nox impact on mercury removal based on TAC: A comprehensive DFT and XAFS analysis

Zheng,

Zhang,

Huang

et al. 2024

Chemical Engineering Journal

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Coal-Fired Thermal Power Plants and Mercury Risks: Status and Impacts to Realize Minamata Convention Promises

Cited by 3 publications

References 54 publications

Selected trace element concentrations in run-of-mine coal, discard, and coal product, and environmental implications

Selected trace element concentrations in run-of-mine coal, discard, and coal product, and environmental implications

Bioremediation of environments contaminated with mercury. Present and perspectives

Nox impact on mercury removal based on TAC: A comprehensive DFT and XAFS analysis

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