Characters of hydrochemistry and their influenced factors of different waters in the Linhuan coal mining subsidence area of Huaibei City

Lingjian, KONG; Jiang, Chunlu; Zheng, Lu; Cheng, Hua; Ren, Mengxi; Feihu, MIN; Liubing, FANG

doi:10.18307/2017.0513

Cited by 12 publications

(6 citation statements)

References 5 publications

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“…4, the Na/(Na + Ca) ratios of surface water, phreatic water, and most of the con ned water in the study area are in the range of 0.29 to 0.45, 0.28 to 0.32, and 034 to 0.55, respectively, and the ratio of Cl/(Cl + HCO 3 ) is between 0.05 ~ 0.43, 0.05 ~ 0.09, and 0.06 ~ 0.20, respectively. Near the rock weathering control zone, the ionic composition of the water is mainly affected by leaching, while the pit lake water had high TDS and a high Na/(Na + Ca) ratio, indicating that its ionic composition is mainly affected by evaporation (Kong et al 2017).…”

Section: Source Of Pit Lake Watermentioning

confidence: 99%

“…Previous researches mainly focused on the in uence mechanism of mining activities on water environment. For example, discriminant charts such as Piper chart and Gibbs chart were used to determine the in uence of evaporation, runoff and coal mining on water bodies in mining areas (Kong et al 2017). Research has also endeavoured to describe the hydrochemical characteristics of the pit lake water-surface water-groundwater system in combination with a health risk assessment to determine the possible human health risks associated with water-rock reactions (Ewusi et al 2022).…”

Section: Introductionmentioning

confidence: 99%

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The Origin and Stability of Pit Lake Water in Baiyinhua, Inner Mongolia, based on Hydrochemistry and Stable Isotopes (δD, δ18O)

Pei

Zhang

Wang

et al. 2023

Preprint

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The Baiyinhua area of Inner Mongolia is rich in coal resources but lacks water resources. Water required for ecological restoration in mining area is primarily obtained via pit lake water recycling. However, robust data has not yet been obtained to characterize the nature of the source, evaporation, and supply of the pit lake water. In this study, 20 groups of different water samples in the Baiyinhua mining area were collected, which were subjected to chemical analysis to determine the contents of hydrogen and oxygen stable isotopes (δD, δ18O) and ion ratios. By principal component analysis and the Rayleigh fractionation model, the mechanisms of pit lake water formation and the extent of its evaporation in the Baiyinhua mining area were revealed. The results show that the hydrochemical type of the pit lake water in the Baiyinhua mining area of Inner Mongolia is the HCO3-SO4-Na type, which is different from the surrounding water bodies (HCO3-Na-Ca and Cl-HCO3-Na types). The formation of pit lake water is mainly affected by evaporation (69.42%) and is less affected by groundwater recharge (17.06%) and human activities (11.51%). Due to its open area and relatively closed system, the evaporative loss of the pit lake water is relatively large, at about 40%-61% of the initial water body, which is 1%-22% higher compared to a nearby natural water body.

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Section: Source Of Pit Lake Watermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Origin and Stability of Pit Lake Water in Baiyinhua, Inner Mongolia, based on Hydrochemistry and Stable Isotopes (δD, δ18O)

Pei

Zhang

Wang

et al. 2023

Preprint

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show abstract

“…Many recent studies have examined the impact of coal mining on regional aquifers, surface water, groundwater, and water conservation to understand the current status and impact of pollution on the water environment [7][8][9][10][11]. Han et al (2020) used hydrochemical methods, including mathematical statistics, the Piper trilinear diagram, and principal component analysis to characterize the hydrochemistry of groundwater and the associated mechanisms in Shendong Daliuta coal mine [12]; Li et al (2022) analyzed the characteristics and influencing factors of surface water and groundwater hydrochemistry in the Shendong Mining Area through the application of Piper and Gibbs diagrams.…”

Section: Introductionmentioning

confidence: 99%

Hydrochemical Characteristics, Mechanisms of Formation, and Sources of Different Water Bodies in the Northwest Coal–Electricity Agglomeration Area

Han,

Huang,

Gan

et al. 2024

Water

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Water resources are relatively scarce in Northwest China. Therefore, this study aimed to identify the hydrochemical characteristics and sources of different water bodies in the Northwest Coal–Electricity Agglomeration area, and the utilization of water resources in the region. Hydrochemical diagrams and correlation analysis were applied to data obtained through the collection of 40, 14, and 42 surface water, shallow groundwater, and deep groundwater samples, respectively. The Positive Definite Matrix Factor Decomposition (PMF) model was used to explore the origins of ions in different water bodies. The results show the following: (1) The rank of anions in surface water, shallow groundwater, and deep groundwater in water bodies of the Bulianta mining area during the wet period according to concentration was as follows: SO42− > Cl− > HCO3− > NO3−; that of cations was as follows: Na+ > Ca2+ > Mg2+ > K+; (2) The chemical composition of surface water is mainly regulated by the dissolution of evaporites; that of shallow groundwater was regulated by silicates; that of deep groundwater was mainly regulated by the hydrolysis of silicates and the dissolution of evaporites; (3) Four main sources of ions in different water bodies were identified, namely agricultural activities, rock weathering, primary geology, and unknown sources. Two natural factors, namely rock weathering and primary geology, and human activities contributed to 35.2% and 38.8% of ions in shallow groundwater, respectively. Rock weathering and human activities contributed to 20.6% and 63.9% of ions of deeper groundwater, respectively. This study can provide a basis for the conservation and rational planning and utilization of water resources in the Northwest Coal–Electricity Agglomeration area.

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“…These factors make water cycle aspects, such as the source and composition of subsidence lakes, change dynamically as mining progresses. In the past, many scholars have studied subsidence lake water while mainly focusing on the environmental quality and evaluation of the water (Zheng et al 2019, Wang et al Kong et al 2017, Sun et al 2014). Some scholars have also studied the sources of lake water in the subsidence area and simulated the associated hydrological cycles (Lu et al 2016, Wang et al 2017 but have not comprehensively considered the typical characteristics, such as dynamics, formation periods and type differences, of subsidence lake areas.…”

Section: Introductionmentioning

confidence: 99%

Water chemistry and stable isotope characteristics of subsidence lakes in coal mining areas, Eastern China

Jiang

Zha

et al. 2023

Environ Sci Pollut Res

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Large-area subsidence lakes in coal mining areas with high phreatic levels in eastern China play a very important role in regulating water resources and improving the ecological environment. These coal mining-related subsidence lakes vary in formation time and connectivity with rivers. These factors may in uence the hydrogeochemistry and hydrogen and oxygen stable isotope characteristics of the lake water. This study assessed the hydrogeochemical and hydrogen and oxygen stable isotope characteristics and the in uencing factors of the subsidence lake water, surface river water and shallow groundwater in the Huainan coal mine area in eastern China. The results showed that the hydrochemical types of the subsidence lake water and river water are Cl-Na and HCO 3 •Cl-Na and that the hydrochemical types of the shallow groundwater are mainly HCO 3 •Cl-Na and HCO 3 •Cl-Ca. There are no signi cant differences in the hydrochemical characteristics of subsidence lakes with different subsidence ages and types. The major ions in each water body mainly come from evaporite dissolution and silicate weathering, and ion exchange occurs. Reverse ion exchange occurs in some shallow groundwater samples. The hydrogen and oxygen isotopic compositions of the subsidence lake water, river water and shallow groundwater plot below and to the right of the LMWL and are distributed along a straight line, indicating that these water bodies have a common source, namely, precipitation. With increases in the formation time of the subsidence lakes, the heavy isotopes in the lake water gradually become depleted, and the d value gradually increases, mainly driven by precipitation dilution, weakening evaporation, river recharge and groundwater recharge. The isotopic values of different types of lakes with the same subsidence time differ little. The research results are of great signi cance for understanding the water cycle and water resource evaluation of coal mining subsidence lakes.

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Characters of hydrochemistry and their influenced factors of different waters in the Linhuan coal mining subsidence area of Huaibei City

Cited by 12 publications

References 5 publications

The Origin and Stability of Pit Lake Water in Baiyinhua, Inner Mongolia, based on Hydrochemistry and Stable Isotopes (δD, δ18O)

The Origin and Stability of Pit Lake Water in Baiyinhua, Inner Mongolia, based on Hydrochemistry and Stable Isotopes (δD, δ18O)

Hydrochemical Characteristics, Mechanisms of Formation, and Sources of Different Water Bodies in the Northwest Coal–Electricity Agglomeration Area

Water chemistry and stable isotope characteristics of subsidence lakes in coal mining areas, Eastern China

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