Practical Application of Dilution Analysis for Estimating Groundwater Quality Effects Due to Coal Slurry Injection into Underground Mine Voids

Quaranta, John D.; Mack, Benjamin; Aken, Benoı̂t Van; Ducatman, Alan; Ziemkiewicz, Paul

doi:10.1007/s10230-014-0274-8

Cited by 5 publications

(1 citation statement)

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“…Aiming to investigate the contamination level, distribution, and possible sources of polycyclic aromatic hydrocarbons (PAHs) in six coal mines in Xuzhou, China, and assess their ecological risks, Chen et al [17] determined the concentrations of 16 PAHs in 26 underground samples, including coal, mine water, and underground sludge. Quaranta et al [18] studied the influence of coal slurry injection in two underground coal mines on the potential water quality of surface water and groundwater in the central Appalachians and predicted the standard excess of surface water and groundwater using a dilution analysis model.…”

Section: Introductionmentioning

confidence: 99%

Ecological Impact Prediction of Groundwater Change in Phreatic Aquifer under Multi-Mining Conditions

Zhou

Liu

Duan

2022

IJGI

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In aeolian sandy grass shoal catchment areas that rely heavily on groundwater, mining-induced geological deformation and aquifer drainage are likely to cause irreversible damage to natural groundwater systems and affect the original circulation of groundwater, thus threatening the ecological environment. This study aimed to predict the impact of groundwater level decline on vegetation growth in the Hailiutu River Basin (HRB), which is a coal-field area. Based on remote-sensing data, the land use/cover change was interpreted and analyzed, and the central areas of greensward land in the basin were determined. Subsequently, the correlation between groundwater depth and grassland distribution was analyzed. Then, the groundwater system under natural conditions was modeled using MODFLOW, and the groundwater flow field in 2029 was predicted by loading the generalized treatment of coal mine drainage water to the model. The change in groundwater depth caused by coal mining and its influence on the grassland were obtained. The results show that coal mining will decrease the groundwater depth, which would induce degradation risks in 4 of the original 34 aggregation centers of greensward land that originally depended on groundwater for growth in HRB because they exceeded the groundwater threshold. The prediction results show that the maximum settlement of groundwater level can reach 5 m in the northern (Yinpanhao), 6 m in the eastern (Dahaize), and 10 m in the southern (Balasu) region of HRB. Attention should be paid to vegetation degradation in areas where groundwater depth exceeds the minimum threshold for plant growth.

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Section: Introductionmentioning

confidence: 99%