Evaluation and Prediction of Seepage Discharge Through Tailings Dams When Their Height Increases

Fetisov, Viacheslav; Menshikova, Elena

doi:10.1007/978-3-030-43953-8_2

Cited by 3 publications

(8 citation statements)

References 12 publications

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“…Calculations show that as the height of the dam embankment, the height of the tailings dump and, consequently, the water level in the ponds increase, the total volume of seepage discharge increases from 41.91 million m 3 (in 2017) to 81.44 million m 3 (in 2026) [24]. Seepage discharge increases in accordance with Darcy's law: increase of water level in ponds leads to increase of hydraulic gradient and amount of seepage water.…”

Section: Resultsmentioning

confidence: 86%

“…The results of field hydrometric measurements performed to assess the seepage discharge through the earth dams, as well as the results of determining the seepage discharge by calculation methods are presented in detail [24].…”

Section: Resultsmentioning

confidence: 99%

“…The values of effective grain diameter d 60 are 0.2-0.6 mm. The values of coefficient of grain uniformity of particle size distribution are in the range from 2 to 8 and mainly do not exceed 5 [24].…”

Section: Methodsmentioning

confidence: 93%

“…The total number of samples taken was 201, including: dam № 1 (42 samples on 6 lines), Eastern dam (47 samples on 4 lines), dam № 2 (42 samples on 6 lines), dam № 3 (35 samples on 5 lines), dam № 4 (35 samples on 5 lines). Methods and results of determination of particle size distribution of wet magnetic separation tailings, calculations of coefficient of grain uniformity of tailings particle size distribution and their porosity as well as calculations of tailings hydraulic conductivity are given in detail [24].…”

Section: Methodsmentioning

confidence: 99%

“…Currently, there are nine dams along the perimeter of the tailings dump, composed of wet magnetic separation waste. The average height of the dams as of 2017 is 62 m; the average length is 1510 m [24]. The dams are built up by moving the tailings of the tailings dump's beach zone.…”

Section: Study Areamentioning

confidence: 99%

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Reducing the Negative Technogenic Impact of the Mining Enterprise on the Environment through Management of the Water Balance

et al. 2020

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In terms of anthropogenic impact of mining and processing enterprises, the adjacent territories are contaminated by upstream tailings dams. The contamination is developed by active seepage of liquid waste through the body of the dams. The authors have analyzed water balance at the Kachkanar Mining and Processing Plant tailings dump (Russia, Ural Region). The company develops vanadium-containing titanium-magnetite iron ores with low ore (15%). This, along with high productivity, has determined the formation of a large number of tailings and significant amount of wastewater. The purpose of the studies is to substantiate the need to manage the seepage discharge process by means of enclosing dams to ensure environmentally safe operation of the tailings dump. The research objectives included field measurements of seepage volumes, their evaluation by computational methods and analysis of anthropogenic geochemical load on natural waters. The obtained results show an increase in seepage discharge volume from 41.91 million m3 (in 2017) to 81.44 million m3 (in 2026) as the height of the dams increases. These losses will lead to water shortages in the enterprise’s water recycling system. Calculation of pollutants in wastewater with the exception of natural component showed the leading role of technogenic factor in the content of Ti (up to 84%), V (up to 96%), Co (up to 86%) and Mo (up to 93%). Increasing the volume of seepage discharge will lead to an increase in natural water pollution within the area. Ecologically efficient management of the enterprise’s water balance is ensured by the use of tailings thickening technology and implementation of closed water supply systems.

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Section: Resultsmentioning

confidence: 86%

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 93%

Section: Methodsmentioning

confidence: 99%

Section: Study Areamentioning

confidence: 99%

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Reducing the Negative Technogenic Impact of the Mining Enterprise on the Environment through Management of the Water Balance

et al. 2020

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Seepage and Deformation Analysis of Tailing Dam regarding the Upper Reservoir of Tiantai Pumped Storage Station

Cheng,

Wang,

Chu

et al. 2024

J. Phys.: Conf. Ser.

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This paper has studied on the seepage and deformation analysis of a tailing dam in the upper reservoir of the Tiantai Pumped Storage Station. The analysis of seepage and deformation is crucial for evaluating the stability and safety of the dam and its impact on the surrounding environment. The study uses numerical simulation software (Phase2 and FLAC3D) to analyse the behaviour of the dam under different drainage conditions and construction phase. The results indicate that two drainage schemes in different filling stages are effective. In the same cross-section of the rock and soil basement, the flow rate of the no dumped and dumped slope is 0.0315 L/s and 0.0319 L/s respectively. The filling of the tailing dam has no predominant impact on the internal deformation magnitude of the auxiliary dam, but it changes the direction of the slope deformation from being squeezed out towards the lower slope to being towards the near-vertical direction, achieving a stable slope. Therefore, it is necessary to ensure the drainage function of the anti-filter layer and the deep interceptive drainage ditch and strengthen the monitoring of slope deformation during the construction phase.

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Removal and Reclamation of Trace Metals from Copper and Gold Mine Tailing Leachates Using an Alkali Suspension Method

Jiang

Chen

et al. 2023

Water

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Leachates from mine tailing ponds, which usually contain a variety of metallic ions, are highly toxic to human and ecological health. The common methods used to remove those trace metallic are difficult due to the extremely acidic conditions and the diverse kinds of metals in mine tailing leachates. Herein, we proposed an economical and efficient soil-assisted alkali suspension approach to remove and reclaim the trace metals. Under the optimum conditions, more than 98% of Cu2+, Zn2+, and Cr3+, and 93% of Cd2+ were removed from authentic copper and gold tailing leachates. Multiple characterizations indicated that the quick removal of trace metal ions from leachates was mainly due to the formation of amorphous hydroxides which are easily adsorbed by soil particles. Additionally, small quantities of metal ions and organic matter complexes were formed, which contributed to the removal of trace metals. Furthermore, most of the adsorbed trace metal in authentic tailing leachate can be reclaimed by a simple acid treatment. Life cycle assessment analysis demonstrated the environmental sustainability of this alkali suspension method due to its smaller contribution to global warming. This study provides an efficient and low-cost approach for the disposal and recycling of toxic mine tailing leachates.

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Evaluation and Prediction of Seepage Discharge Through Tailings Dams When Their Height Increases

Cited by 3 publications

References 12 publications

Reducing the Negative Technogenic Impact of the Mining Enterprise on the Environment through Management of the Water Balance

Reducing the Negative Technogenic Impact of the Mining Enterprise on the Environment through Management of the Water Balance

Seepage and Deformation Analysis of Tailing Dam regarding the Upper Reservoir of Tiantai Pumped Storage Station

Removal and Reclamation of Trace Metals from Copper and Gold Mine Tailing Leachates Using an Alkali Suspension Method

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