Contamination of water resources in the mining region

Punia, Anita; Singh, S. K.

doi:10.1016/b978-0-12-824058-8.00015-3

Cited by 8 publications

(11 citation statements)

References 134 publications

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“…Mining in Mexico continues to be one of the main economic activities [1,2]. Toxic substances, along with a significant amount of energy, are used in the mining process, and they alter the sites from which precious metals such as gold and silver are extracted [3,4]. Waste generated from crushed rocks and minerals used to remove the desired metal [2,5,6] further contributes to the environmental impact.…”

Section: Introductionmentioning

confidence: 99%

“…The waste produced during the extraction process, known as tailings, typically contains harmful elements such as lead, cadmium, arsenic, and mercury. Due to the presence of these elements, the waste becomes toxic to living organisms and significantly contributes to aquifer and food chain contamination [4][5][6][7]. In Mexico, the Nahuatl word "jales" is used, which means fine sand and accurately describes the physical form of these residues [8,9].…”

Section: Introductionmentioning

confidence: 99%

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Increasing the Sustainability of the Stabilization/Solidification of Potentially Toxic Elements Contained in Tailings from an Active Mine Using a Modified Lime Mortar

González-Sánchez,

Fernández-Villagómez,

Loredo Jasso

et al. 2024

Sustainability

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The use of a modified lime mortar as a binder for the stabilization/solidification of mine tailings presents a promising and sustainable solution for immobilizing potentially toxic elements found in these waste materials compared to cement mortars. The effectiveness of this modified lime mortar in avoiding the mobility of toxic elements, namely lead (Pb) and arsenic (As), in mine tailings has been thus studied. Encapsulating matrices of 1:1 and 2:1 tailings waste/air lime ratios were prepared. Due to the content of potentially pozzolanic compounds in the mine tailings, mainly some silicate phases, 1:1 matrices showed better mechanical strength than 2:1 samples, ascribed to a more intense pozzolanic reaction. SEM observations identified needle-shaped C-S-H structures. The hardened materials showed good endurance against freeze–thaw cycles. The semi-dynamic tank test demonstrated the effective encapsulation of the toxic components due to the use of lime mortars, yielding values of released Pb and As below the detection limit in all instances. Considering the cost-effectiveness, widespread availability, and ease of use, the use of modified lime mortar for the treatment of mine tailings can be recommended to mitigate the environmental impacts of mining activities.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Increasing the Sustainability of the Stabilization/Solidification of Potentially Toxic Elements Contained in Tailings from an Active Mine Using a Modified Lime Mortar

González-Sánchez,

Fernández-Villagómez,

Loredo Jasso

et al. 2024

Sustainability

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“…Pollutants released during mining operations contaminate water sources that lead to health impacts on humans, animals, and flora [4], [5], and [18]. All those factors are well known worldwide, causing big change in approach to solving the imposed problem from policy makers as well as researchers [8], [9], [14].…”

Section: Introductionmentioning

confidence: 99%

Heavy Metal Pollution of Water Sources "Šićki Brod" and "Studenac" Due to the Exploitation of Coal

Nurić,

Varcaković

2024

SAR Journal

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The article aims to determine the levels of water pollution by concrete measurements of heavy metals in the water sources "Šićki Brod" and "Studenac". Sampling of water from both sources as well as analysis of the content of the heavy metal elements in the water was carried out. All analyzed elements are classified into the group of heavy metals, which take second place (after pesticides) in terms of harmful effects if found in the environment. Heavy metals are ecologically very important because they are non-degradable and do not disappear, but move through the ecosystem and have a normal biogeochemical cycle. Considering the mining works that were carried out in the area near to source, the impact of mining works on the pollution of water sources was put into comparison.

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“…In addition, the drainage of huge rock masses during the construction of quarries violates the conditions for the recharge and discharge of aquifers. This leads to deterioration in the quality of groundwater [1][2][3][4] and, accordingly, surface water [5][6][7][8][9], and to changes in hydrogeochemical processes. Thus, it is necessary to create a clear system for handling waste from the mining industry, particularly drainage water [9,10].…”

Section: Introductionmentioning

confidence: 99%

“…This leads to deterioration in the quality of groundwater [1][2][3][4] and, accordingly, surface water [5][6][7][8][9], and to changes in hydrogeochemical processes. Thus, it is necessary to create a clear system for handling waste from the mining industry, particularly drainage water [9,10]. Processes for improving water quality can also be considered for drinking use or for technical purposes [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Modeling Changes in the Composition of River Water with Discharged Wastewater: A Case Study in NW Russia

Малов

Sidkina

Мироненко

et al. 2022

Water

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The technogenic impact of the development of the Lomonosov diamond deposit is associated with the discharge of quarry and drainage water into the river, which has a special conservation status. Earlier studies on the composition of bottom sediments showed that there are signs of increased accumulation of heavy metals and radionuclides at wastewater discharge sites. The purpose of this work was to predict changes in the composition of surface water and bottom sediment in the river during the further development of mining operations with brackish and salty water captured by drainage systems, the presence of which was established in the zone of their future influence. For this, a simulation of changes in the composition of the water in the river was carried out using the GEOCHEQ software package by minimizing the free energy of the system using a convex simplex algorithm. It was found that the maximum salinity of surface water can reach 1.51 g/L. In this case, the MPC of Cl−, Na+, SO42−, Mg2+, Sr, V, and U can be exceeded for fishery watercourses. The genetic basis of the accumulation of these components in solutions for mixing was considered. According to the calculations, when about 5000 m3/h of drainage water is discharge d into the river, the mass of precipitated chemical elements will be 56–191 t/h, including up to 2.1 t/h of iron; therefore, accumulation in the discharge zone must be controlled.

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Contamination of water resources in the mining region

Cited by 8 publications

References 134 publications

Increasing the Sustainability of the Stabilization/Solidification of Potentially Toxic Elements Contained in Tailings from an Active Mine Using a Modified Lime Mortar

Increasing the Sustainability of the Stabilization/Solidification of Potentially Toxic Elements Contained in Tailings from an Active Mine Using a Modified Lime Mortar

Heavy Metal Pollution of Water Sources "Šićki Brod" and "Studenac" Due to the Exploitation of Coal

Modeling Changes in the Composition of River Water with Discharged Wastewater: A Case Study in NW Russia

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