Recharge sources and hydrogeochemical evolution of groundwater in the coal-mining district of Jiaozuo, China

Huang, Pinghua; Chen, Jiansheng

doi:10.1007/s10040-012-0836-4

Cited by 41 publications

(12 citation statements)

References 25 publications

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“…In studying groundwater recharge, the surface water evaporation line is an important reference, which can be obtained by fitting the measured data; however, the cost is high given the measured large amounts of data [22,23]. Therefore, this study combines the theoretical and measured values to calculate the surface water evaporation line.…”

Section: Theory Evaporation Linementioning

confidence: 99%

Applying Environmental Isotope Theory to Groundwater Recharge in the Jiaozuo Mining Area, China

Huang

Wang

2017

Geofluids

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This study establishes the surface water evaporation line in theory and numerically simulates the D and 18 O value distribution interval of the recharge source of deep groundwater in the Jiaozuo mining area. The recharge elevation is calculated based on hydrogen and oxygen isotope tracer theory. Theoretical calculation and experimental data indicate that the surface water evaporation line in the study area in theory is almost the same as the measured surface data-fitting line. A significant linear relationship is identified between 18 O and the elevation of spring outcrop. The topography increases per 100 m, and the 18 O value reduces by 0.23‰ on average. The 18 O value is converted into formula to calculate the groundwater recharge elevation, which is approximately from 400 to 800 m. The measured tritium values of karst groundwater are greater than 3 TU. The second factor score is a fraction distribution in shallow groundwater and negative fraction distribution in spring and deep groundwater, which indicates that the Northern Taihang Mountain is the main recharge area, where carbonate-exposed areas exist. The research conclusion holds a certain value for the flood evaluation of local coal mines.

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Section: Theory Evaporation Linementioning

confidence: 99%

Applying Environmental Isotope Theory to Groundwater Recharge in the Jiaozuo Mining Area, China

Huang

Wang

2017

Geofluids

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“…However, few studies have examined the factors influencing the geochemical properties of groundwater in multiple aquifers. Since the concentrations of environmentally stable isotopes (D, 18 O) in groundwater change little with water-rock interactions at low temperatures, stable isotopes can be used to bridge this knowledge gap (Molla et al 2007;Huang & Chen 2012). Groundwaters in diverse aquifers usually have hydraulic connections in coal mining districts, and both their hydrogeochemistry and stable isotope ratios can be used to characterize groundwater recharge processes and circulation mechanisms, and examine the mixing ratios of groundwaters in different aquifers (Chen et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Calculating groundwater mixing ratios in multi-aquifers based on statistical methods: a case study

Song

Gui

2021

Water Practice and Technology

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Samples of river water and groundwater from Quaternary (QA), sandstone (SA), Taiyuan formation (TA), and Ordovician limestone (OA) aquifers in the Suxian coal-mining district, Anhui Province, China were collected. Their physicochemical properties, and major ion and isotopic compositions were determined. The samples were alkaline, with pH values exceeding 8, and the total dissolved solids concentrations depended on the water source. The δD and δ18O contents were highest in the river water samples and lowest in the SA groundwater. The isotopic characteristics of the QA and OA groundwaters suggest recharge by rainfall and surface water. The isotopic characteristics of river water were controlled mainly by evaporation. Water–rock interactions, the flow rate, and the main water sources were the most important influences on groundwaters in QA, OA, and TA, but the properties of SA groundwater were controlled by static reserves. Two discriminant functions, explaining more than 98.2% of the total variances, indicated that QA, TA, and OA were hydraulically connected. Three groundwater sources were identified as end-members, and a conceptual model was established to calculate water mixing ratios.

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“…Hydrogeochemical analysis methods used to determine the evolution of groundwater chemical composition include: hydrogeochemical maps, multivariate statistical analysis, and GIS spatial analysis [6][7][8]. Huang et al [9,10] used a Piper diagram, Gibbs diagram, and Ion proportion coefficient diagram to analyse the chemical characteristics of groundwater. Multivariate statistical analyses were used to study the hydrogeochemical evolution process mainly include factor analysis, principal component analysis, and cluster analysis.…”

Section: Introductionmentioning

confidence: 99%

Hydrogeochemical Evolution and Control Mechanism of Underground Multiaquifer System in Coal Mine Area

Wang³

et al. 2020

Geofluids

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Mining activities interfere into the natural groundwater chemical environment, which may lead to hydrogeochemical changes of aquifers and mine water inrush disasters. The study of hydrogeochemical evolution processes of underground aquifers is helpful to the prevention and control of mine water inrush. The results show that the study area is mainly impacted by four hydrogeochemical processes: dissolution, cation exchange, desulfurization and reduction, and pyrite oxidation. The Cenozoic aquifers are dominated by carbonate dissolution and desulfurization. The Permian aquifers are impacted mainly by cation exchange and sulfate dissolution, followed by pyrite oxidation. The Carboniferous aquifers are mainly impacted by dissolving sulfate, followed by pyrite oxidation and cation exchange. The hydrogeochemical evolution of the aquifers was controlled by mining activities and tectonic changes, and a certain regularity in space. For the Cenozoic aquifers, sulfate dissolution and cation exchange increase from west to east, and desulfurization weakens. For the Permian aquifers, cation exchange and sulfate dissolution are stronger near synclines and faults, pyrite oxidation is enhanced, and desulfurization decreases from the middle to the east of the mining area. For the Carboniferous aquifers, there is a higher dissolution of rock salt, pyrite oxidation, and cation exchange from west to east, and the desulfurization effect weakens.

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Recharge sources and hydrogeochemical evolution of groundwater in the coal-mining district of Jiaozuo, China

Abstract: Investigations in the Jiaozuo coal-mining district (China) aim to link water-inrush aquifers with the sources of groundwater recharge. Concentrations of TDS, HCO 3 -, Cl -and Na + in the groundwater samples gradually decrease with increasing depth

Cited by 41 publications

References 25 publications

Applying Environmental Isotope Theory to Groundwater Recharge in the Jiaozuo Mining Area, China

Applying Environmental Isotope Theory to Groundwater Recharge in the Jiaozuo Mining Area, China

Calculating groundwater mixing ratios in multi-aquifers based on statistical methods: a case study

Hydrogeochemical Evolution and Control Mechanism of Underground Multiaquifer System in Coal Mine Area

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