Groundwater Vulnerability to Pollution in Areas of Sublevel Post-Mining Waste Deposition

Niedbalska, Katarzyna

doi:10.5593/sgem2017/12/s02.053

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“…At the considered training ground, such a situation was forced by a functioning mine drainage system, and this condition is met on the entire surface of the reclaimed open-pit excavation. The analyses carried out so far using the classic DRASTIC method (Niedbalska et al 2016) and the first attempts at its modification (Niedbalska et al 2017) enabled the final selection of optimal factors shaping the sensitivity of groundwater to the impact of anthropogenic pollution source. Finally, six main factors were selected and assigned appropriate weights due to the importance of their impact on groundwater vulnerability (2-the least importance, 6-the most important).…”

Section: Assessment Of Groundwater Vulnerability To Pollution Using A...mentioning

confidence: 99%

Parametric assessment of groundwater vulnerability to pollution within an open pit reclaimed by gangue

Niedbalska

2022

Appl Water Sci

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The use of post-mining wastes in the reclamation of an open pit may act as a source of pollution that has a very strong impact on the groundwater environment. One such facility in Poland is the CTL Maczki-Bór S.A. sand mine filled with waste rock from hard coal mines. The current hydrodynamic conditions in the Quaternary aquifer causes that the wastes are in the bottom part of the open pit under the constant influence of groundwater. Due to the sub-level nature of the pollution source, the author of the study modified the classic rank-weight method of assessing the groundwater vulnerability to pollution in order to adapt it to the atypical type of the pollutant emitter. An individual approach was proposed by modifying the range of parameters as well as the assigned ranks and weights. Six key parameters were indicated, i.e. the thickness of the aeration zone, the thickness of the saturation zone, the filtration coefficients of the deposits in both of these zones, the recharge of the aquifer and the surface topography. The correctness of weight selection was verified by sensitivity analysis in the sensitivity variant of one parameter. It has been proposed to classify the groundwater vulnerability to 5 classes from moderately high to extremely high. For theoretical and effective weights, the obtained values of the index of groundwater vulnerability to pollution allowed to divide the area of the reclaimed open pit into two zones with high and very high groundwater vulnerability to pollution.

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Section: Assessment Of Groundwater Vulnerability To Pollution Using A...mentioning

confidence: 99%

Parametric assessment of groundwater vulnerability to pollution within an open pit reclaimed by gangue

Niedbalska

2022

Appl Water Sci

View full text Add to dashboard Cite

show abstract

Groundwater Vulnerability to Pollution in Areas of Sublevel Post-Mining Waste Deposition

Cited by 1 publication

References 0 publications

Parametric assessment of groundwater vulnerability to pollution within an open pit reclaimed by gangue

Parametric assessment of groundwater vulnerability to pollution within an open pit reclaimed by gangue

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