Articles with "waste rock" as a keyword



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Biotic and Abiotic Sequestration of Selenium in Anoxic Coal Waste Rock

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Published in 2018 at "Mine Water and the Environment"

DOI: 10.1007/s10230-018-0546-9

Abstract: Mobile selenium oxyanions ($${\text{S}}{{\text{e}}^{{\text{VI}}}}{\text{O}}_{4}^{{2 - }}$$SeVIO42- and $${\text{S}}{{\text{e}}^{{\text{IV}}}}{\text{O}}_{3}^{{2 - }}$$SeIVO32-) can be sequestered by biotic or abiotic reduction to non-mobile species or by adsorption to mineral surfaces. Microbial analyses and geochemical batch testing with samples… read more here.

Keywords: batch tests; waste rock; rock; adsorption ... See more keywords
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Influence of a tundra freeze-thaw cycle on sulfide oxidation and metal leaching in a low sulfur, granitic waste rock ☆

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Published in 2017 at "Applied Geochemistry"

DOI: 10.1016/j.apgeochem.2016.11.010

Abstract: Abstract Drill cuttings were collected at 1 m depths from an instrumented, low sulfur, experimental waste rock pile containing a 4C-pyrrhotite that had been exposed to the extreme freeze-thaw cycle of a tundra climate. Boreholes were… read more here.

Keywords: sulfur; surface; waste rock; core ... See more keywords
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A study of Zn and Mo attenuation by waste-rock mixing in neutral mine drainage using mixed-material field barrels and humidity cells

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Published in 2017 at "Applied Geochemistry"

DOI: 10.1016/j.apgeochem.2017.06.005

Abstract: Abstract We studied the attenuation of Mo and Zn in neutral pH drainage from waste rock at the Antamina mine in Peru. We hypothesized that Mo or Zn contained in leachate produced in one waste-rock… read more here.

Keywords: field; waste rock; drainage; attenuation ... See more keywords
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High rock content enhances plant resistance to drought in saline topsoils

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Published in 2021 at "Journal of Arid Environments"

DOI: 10.1016/j.jaridenv.2021.104589

Abstract: Abstract Successful mine site restoration in semi-arid regions is limited by availability of topsoil and water, and saline soils are a common feature of these regions and pose an additional stressor to vegetation establishment. We… read more here.

Keywords: rock content; water; content; waste rock ... See more keywords
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Evaluation of arsenic mineralogy and geochemistry in gold mine-impacted matrices: Speciation, transformation, and potential associated risks.

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Published in 2022 at "Journal of environmental management"

DOI: 10.1016/j.jenvman.2022.114619

Abstract: The risk of arsenic (As) contamination from gold mining is a long-term environmental concern for mines worldwide. Researchers have mainly focused on As contamination induced by tailings, however, less attention has been paid mineralogically to… read more here.

Keywords: mineralogy; geochemistry; waste rock; ores tailings ... See more keywords
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Modelling the dispersion of radon-222 from a landform covered by low uranium grade waste rock.

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Published in 2018 at "Journal of environmental radioactivity"

DOI: 10.1016/j.jenvrad.2018.07.024

Abstract: The dispersion of 222Rn from the planned remediation of the Ranger U mine in the wet-dry tropics of Northern Australia was modelled. Dry and wet season contour maps of 222Rn dose normalised to 226Ra activity… read more here.

Keywords: wet; dispersion; landform; waste rock ... See more keywords
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Evaluation of the leaching characteristics of low-grade nickel laterite waste rock for indirect carbon sequestration application

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Published in 2020 at "Geosystem Engineering"

DOI: 10.1080/12269328.2020.1745694

Abstract: ABSTRACT The potential utilization of waste rock obtained from an active nickel mine site in Mindanao, the Philippines for indirect carbon sequestration is explored in this study. X-ray diffraction (XRD), X-ray fluorescence (XRF), and inductively… read more here.

Keywords: indirect carbon; carbon sequestration; waste rock;
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Fiber Optic Measurements of Soil Moisture in a Waste Rock Pile.

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Published in 2021 at "Ground water"

DOI: 10.1111/gwat.13075

Abstract: The design and construction of a waste rock pile influences water infiltration and may promote the production of contaminated mine drainage. The objective of this project is to evaluate the use of an active fiber… read more here.

Keywords: rock pile; water; waste; waste rock ... See more keywords
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Effects of one dark septate endophytic fungal and two Helotiales strains on the growth of Salix planifolia cuttings on iron ore waste rock

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Published in 2021 at "Botany"

DOI: 10.1139/cjb-2021-0043

Abstract: Plants maintain beneficial mutualistic relationships with the mycobiont communities found in their rhizosphere, leading to an increase in plant productivity and health. In nutrient-depleted substrates like mine tailings, mycobiont inoculation is often recommended to help… read more here.

Keywords: two helotiales; waste; dark septate; planifolia cuttings ... See more keywords
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Bioleaching of Chalcopyrite Waste Rock in the Presence of the Copper Solvent Extractant LIX984N

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Published in 2022 at "Frontiers in Microbiology"

DOI: 10.3389/fmicb.2022.820052

Abstract: Heap bioleaching, the solubilization of metal ions from metal sulfides by microbial oxidation, is often combined with solvent extraction (SX) and electrowinning to recover, e.g., copper from low-grade ores. After extraction, the leaching solution is… read more here.

Keywords: copper; waste rock; bioleaching chalcopyrite; microscopy ... See more keywords
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Waste Mineral Wool and Its Opportunities—A Review

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Published in 2021 at "Materials"

DOI: 10.3390/ma14195777

Abstract: Massive waste rock wool was generated globally and it caused substantial environmental issues such as landfill and leaching. However, reviews on the recyclability of waste rock wool are scarce. Therefore, this study presents an in-depth… read more here.

Keywords: wool; rock wool; waste mineral; waste rock ... See more keywords