Temporal evolution of acid mine drainage (AMD) leachates from the abandoned tharsis mine (Iberian Pyrite Belt, Spain)

González, Raúl Moreno; Macías, Francisco; Álvarez, Manuel Olías; Cánovas, Carlos Ruiz

doi:10.1016/j.envpol.2021.118697

Cited by 21 publications

(6 citation statements)

References 36 publications

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“…On the other hand, in addition to agricultural activity, another important factor influencing karst groundwater quality in the southwest is mining activity. Acid mine drainage (AMD) water is formed by the oxidation of sulfide minerals in waste-rock storage facilities, tailings storage facilities, and abandoned or active mine structures [191]. AMD water is typically distinguished by a low pH and a high SO4 2− concentration and high concentrations of hazardous trace metals [192][193][194].…”

Section: Karst Groundwater Contamination Trackingmentioning

confidence: 99%

The Characteristics and Application of Deuterium and Oxygen Isotopes to Karst Groundwater, Southwest China

Tang,

Yu,

You

et al. 2024

Water

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Stable isotopes in natural water bodies serve as hydrologic tracers, with a history of extensive application in karst groundwater research. The present paper is a systematic review of previous research results, with the objective of sorting out and summarizing the stable isotopic characteristics of karst groundwater in southwest China, which is the most typical karst region worldwide. Comprehensive analysis reveals that the deuterium and oxygen isotope values of most karst groundwater are characterized temporally as ‘enriched in the rainy season and depleted in the dry season’, which is the opposite of the pattern of precipitation. While the spatial distribution feature is basically consistent with the spatial variation pattern of precipitation, which is characterized as ‘depleted from the coast to the interior’. Additionally, the main applications of stable isotopes to karst groundwater are discussed, including karst groundwater recharge source and recharge elevation identification, research on karst groundwater in the hydrological cycle, the hydrological process of karst groundwater, and karst groundwater contamination tracking. Finally, we looked forward to future research on karst groundwater based on deuterium and oxygen isotopes. It is our hope that this review may provide insight into the study of karst groundwater.

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Section: Karst Groundwater Contamination Trackingmentioning

confidence: 99%

The Characteristics and Application of Deuterium and Oxygen Isotopes to Karst Groundwater, Southwest China

Tang,

Yu,

You

et al. 2024

Water

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“…AMD results in decreasing water quality and sedimentation of toxic metals and thus in negative effects on aquatic ecology. AMD characteristics are already described in detail in various studies around the world, such as in Brazil (Galhardi and Bonotto 2016), in the Iberian Pyrite Belt, Portugal and Spain (Sáinz et al 2002;Moreno-González et al 2022), and in the Lusatian coal mining district, Germany (Uhlmann et al 2010;Uhlmann et al 2013). Because it poses a risk for environmental damage in the surface and subsurface catchment areas strategies are needed to attenuate AMD.…”

Section: Introductionmentioning

confidence: 97%

Retention potential of a drained wetland in the Lusatian lignite mining district, Briesener Niedermoor, Germany, Europe

2023

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Acid mine drainage (AMD) is one of the most important global causes for polluted water. It occurs in mining areas due to oxidation of sulfide minerals. Depending on hydrological conditions, wetlands are considered suitable for passive treatment of AMD. The aim of the study was to characterize the long-term retention performance of a drained wetland, Briesener Niedermoor, in an iron and sulfate contaminated catchment area. The site is located in the Lusatian lignite mining district, Germany. Hydrological and hydrochemical measurements as well as time series of groundwater and surface water were evaluated and saturation conditions of iron species were determined using Phreeqc Interactive and EH–pH diagrams for the Fe–S–K–O–H system. Progressing peat degradation due to drainage leads to a hydraulic behaviour of the wetland that is more comparable to a rain bog than a fen, and thus to more pronounced oxic conditions. Groundwater feeds the wetland with significant loads of iron and sulfate, which are temporally stored in the wetland. At low surface water discharge, iron is removed and weak acidic pH is buffered by the dominant phase of schwertmannite (Fe8O8(OH)6SO4), usually during summer months. In winter, greater water availability initializes a high source strength from the wetland, that cannot be retarded. Thus, only during summer, there is a retention potential; in winter, the retention potential is not strong enough to prevent an inflow of iron and sulfate. Only a significant rewetting of the wetland may result in a restoration of the retention potential of the wetland Briesener Niedermoor.

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“…Moreover, mechanism of sulphides weathering, contribution of microorganisms to their weathering processes, also influence of pH and temperature, climate on formation of secondary minerals, i.e. mainly ochres, as well as function of ochres at mobility of toxic elements in soils and water, and at toxic elements removing from waters are studied naturally not only in Slovakia [1, [4][5][6][7][8]. The Smolník abandoned mine (eastern Slovakia) is studied in particular detail [9][10][11][12], but an attention is paid to localities such as Pezinok (western Slovakia) [9,13], Banská Štiavnica (central Slovakia) [9,14] and Poproč (eastern Slovakia) [15,16].…”

Section: Introductionmentioning

confidence: 99%

“…As to coarser fraction, i.e. under 150 microns, 44.5 % SiO2, 16.8 % Fe2O3, 11.3 % Al2O3,6.9 % CaO, 2.4 % MgO a 2.3 % C were assayed. Dominant quartz is accompanied by mica, plagioclase, ankerite and dolomite.…”

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confidence: 99%

Krótka charakterystyka ochry ze sztolni Marta (Nižná Slaná, Spiš-Gemer Ore Mts

Hredzák,

Matik,

Šestinová

et al. 2024

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The contribution deals with the study on composition of ochre sample from the Marta adit at Nižná Slaná. Three samples were prepared from ochre by hand picking and screening, which were subjected to GA, AAS, XRF and XRD. Salts precipitated on surface at drying contain 17.7 % S (53 % as SO4), 16.5 % MgO, 13.6 % Fe2O3, 3.54 % CaO and 1 % MnO. As to mineral composition, sulphates such as gypsum, starkeyite and rozenite are dominant. The fraction of grain size under 250 micron contains 30 % Fe2O3, 28.6 % SiO2, 8 % Al2O3, 6.6 % CaO, 2.9 % MgO and 1.95 % S. Notable is content of arsenic in this fraction, which attain as high as 1.84 %. Quartz and gypsum occur as dominant crystalline phases. As to coarser fraction, i.e. under 150 microns, 44.5 % SiO2, 16.8 % Fe2O3, 11.3 % Al2O3, 6.9 % CaO, 2.4 % MgO a 2.3 % C were assayed. Dominant quartz is accompanied by mica, plagioclase, ankerite and dolomite. It was shown that arsenic is bonded in finer grain size fraction.

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Temporal evolution of acid mine drainage (AMD) leachates from the abandoned tharsis mine (Iberian Pyrite Belt, Spain)

Cited by 21 publications

References 36 publications

The Characteristics and Application of Deuterium and Oxygen Isotopes to Karst Groundwater, Southwest China

The Characteristics and Application of Deuterium and Oxygen Isotopes to Karst Groundwater, Southwest China

Retention potential of a drained wetland in the Lusatian lignite mining district, Briesener Niedermoor, Germany, Europe

Krótka charakterystyka ochry ze sztolni Marta (Nižná Slaná, Spiš-Gemer Ore Mts

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