Chemical composition of groundwater in abandoned coal mines: Evidence of hydrogeochemical evolution

Tarasenko, Irina A.; Холодов, А. С.; Zinkov, A. V.; Chekryzhov, I. Yu.

doi:10.1016/j.apgeochem.2022.105210

Cited by 19 publications

(7 citation statements)

References 52 publications

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“…Positive Ce anomaly is typically associated with the enrichment in HREEs, whereas negative Ce anomaly suggests LREEs enrichment [ 68 ]. Furthermore, positive Ce anomaly implies the presence of highly soluble Ce(III), whereas negative Ce anomaly suggests Ce(III) oxidation to weakly soluble Ce(IV) and is usually associated with high alkalinity or high pH values [ 6 , 37 ]. Contrarily, Eu is enriched compared with other REEs.…”

Section: Resultsmentioning

confidence: 99%

“…Depletion or enrichment of an element in relation to its neighboring REE is considered a negative or positive REE anomaly. In this study, Ce, Eu, Tm, and Tb anomalies were calculated using Equations (1)–(4) adapted from the previous literature [ 4 , 37 , 38 ] as follows:

where Ce / Ce *, Eu / Eu *, Tm / Tm *, and Tb / Tb * represent Ce, Eu, Tm, and Tb anomalies, respectively, while N stands for the UCC-normalized concentration values of the element.…”

Section: Methodsmentioning

confidence: 99%

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Spatial Variability of Rare Earth Elements in Groundwater in the Vicinity of a Coal-Fired Power Plant and Associated Health Risk

Vesković,

Lučić,

Ristić

et al. 2024

Toxics

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This study investigated the occurrence and distribution of rare earth elements (REEs), including 14 lanthanoids, scandium (Sc), and yttrium (Y), in groundwater around a large coal-fired thermal power plant (TPP). The ICP-MS technique was used to analyze 16 REEs in groundwater samples collected from monitoring wells. REE concentrations ranged from 59.9 to 758 ng/L, with an average of 290 ng/L. The most abundant was Sc, followed by La, accounting for 54.2% and 21.4% of the total REE concentration, respectively. Geospatial analysis revealed the REE enrichment at several hotspots near the TPP. The highest REE concentrations were observed near the TPP and ash landfill, decreasing with the distance from the plant and the landfill. REE fractionation ratios and anomalies suggested the Light REE dominance, comprising over 78% of the total REEs. Correlation and principal component analyses indicated similar behavior and sources for most REEs. Health risk assessment found hazard indices (HI) of 1.36 × 10−3 and 1.98 × 10−3 for adults and children, respectively, which are far below the permissible limit (HI = 1). Likewise, incremental lifetime cancer risks (ILCR) were all below 1 × 10−6. Nevertheless, ongoing ash disposal and potential accumulation in the environment could elevate the REE exposure over time.

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Section: Resultsmentioning

confidence: 99%

where Ce / Ce *, Eu / Eu *, Tm / Tm *, and Tb / Tb * represent Ce, Eu, Tm, and Tb anomalies, respectively, while N stands for the UCC-normalized concentration values of the element.…”

Section: Methodsmentioning

confidence: 99%

Spatial Variability of Rare Earth Elements in Groundwater in the Vicinity of a Coal-Fired Power Plant and Associated Health Risk

Vesković,

Lučić,

Ristić

et al. 2024

Toxics

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“…The influence of human activities includes NO3 -, SO4 2and Cldirectly or indi- The relationship diagrams between Mg 2+ /Na + versus Ca 2+ /Na + and HCO3 -/Na + versus Ca 2+ /Na + were plotted (Fig. 6), through which the sources of dissolved substances in the groundwater can be further determined (Gaillardet et al, 1999;Xiao et al, 2015;Ángel et al, 2019;Irina et al, 2022;Liu et al, 2021a). The values of Mg 2+ /Na + , Ca 2+ /Na + and HCO3 -/Na + in the KGW samples of Sangu Spring Basin were 0.23-9.97, 0.46-28.70 and 0.53-31.55, respectively.…”

Section: Causes Of Groundwatersmentioning

confidence: 99%

Hydrogeochemical Characteristics and Sulfate source of Groundwater in Sangu Spring Basin

Hou,

Li,

Wang

et al. 2024

Preprint

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Sangu Spring Basin is located in an important economic area，and groundwater is the main source of water for local life and industry. Understanding the sources of chemical components in groundwater is important for the development and utilization of groundwater. In this paper, we analyzed the origin of the chemical components of groundwater and their evolution in the Sangu Spring Basin using statistical analysis, Piper diagram, Gibbs diagrams, ion ratios, and combined hydrochemistry-isotope analyses. The results show that groundwater is the origin of atmospheric precipitation, the groundwater in stagnant and confined environment zones is formed under colder climatic conditions, and the surface water (SW) has a close hydraulic relation with the groundwater. Water-rock interaction is the main factor controlling the composition of groundwater. The compositions of groundwater are mainly derived from carbonate weathering, silicate weathering and dissolution of gypsum. Na+ and K+ in groundwater mainly come from the dissolution of albite and potassium feldspar, rather than rock salt. Ion exchange occurs in KGW and FGW, and the ion exchange is dominated by the exchange of Mg2+ and Ca2+ in the groundwater by Na+ and K+ in the rock or soil. De-dolomitization of KGW in deeply buried and stagnant flow zones occurred, causing elevated Mg2+ and SO42- concentrations. Nitrates and chlorides in groundwater are affected by a combination of agricultural activities, industrial activities, and weathering of rocks. Sulfate in groundwater is derived from dissolution of gypsum, infiltration of atmospheric precipitation and leakage of SW. Groundwaters with the highest sulfate content are located in the vicinity of SW, as a result of receiving recharge from SW seepage. Groundwaters with higher sulfate contents are located in the stagnant and deeply buried zones, where sulfate is mainly derived from the dissolution of gypsum. SW seepage recharges groundwater, resulting in the increased levels of Cl-, NO3- and SO42- in groundwater. These insights can provide assistance in groundwater protection and effective management.

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“…Feng et al [27] presented a framework and quantitative method for groundwater environmental risk analysis at different phases of the mine life cycle composed of the groundwater system destruction risk and social-economic-ecological vulnerability assessment. Irina et al [28], Azzeddine et al [29], Jiang et al [30], Yang et al [31], Zhang et al [32], and Zhang [33] conducted hydrogeochemical studies to identify the specific features and potentially toxic elements associated with the mining district by assessing the groundwater vulnerability. Patrick and Christopher [34] presented the robustness of 'first-flush' empirical models for describing and predicting mine water behavior.…”

Section: Introductionmentioning

confidence: 99%

Assessment of the Impact of Abandoned Mine Water on Groundwater Environment

Liu¹,

Ma²,

Han³

et al. 2023

Water

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The assessment of the impact of abandoned mine water on the underwater environment is critical for protecting and restoring the groundwater environment. Taking the abandoned coal mining area in the west of Zhangqiu District as the engineering background and comprehensively considering the regional groundwater chemical characteristics data during the wet and dry seasons, the main characteristics of the ions, hydrochemical types, and ion correlations of the abandoned mine water with the regional groundwater components were analyzed using mathematical statistics, correlation analysis, and Piper diagrams. An impact assessment was conducted on the water quality index values of the groundwater monitoring point. Furthermore, this research establishes an evaluation method of abandoned mine water in a regional groundwater environment based on the improved Nemero index method and matter element theory. Overall, the groundwater pH is weakly alkaline in Zhangqiu District. The groundwater Ca2+ is the dominant cation, while HCO3− and SO42− are the dominant anions. The main ion concentration during the dry season is slightly greater than during the wet season. The main hydrochemical type of groundwater during the wet and dry seasons is HCO3-Ca. In addition, there is a correlation between NO3− and F−, which may be caused by human activities. The groundwater environment is classified as level IV and severely polluted.

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Chemical composition of groundwater in abandoned coal mines: Evidence of hydrogeochemical evolution

Cited by 19 publications

References 52 publications

Spatial Variability of Rare Earth Elements in Groundwater in the Vicinity of a Coal-Fired Power Plant and Associated Health Risk

Spatial Variability of Rare Earth Elements in Groundwater in the Vicinity of a Coal-Fired Power Plant and Associated Health Risk

Hydrogeochemical Characteristics and Sulfate source of Groundwater in Sangu Spring Basin

Assessment of the Impact of Abandoned Mine Water on Groundwater Environment

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