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In particular, Daldoul et al. (2015) reported 0.7-19.5% of Pb and 0.3-6.2% of Zn for a soil contaminated with an old mine tailing from the former Pb-Zn Jebel Ghozlane mine in Tunisia with a high ...
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In this study, the effects of industrial and urban pollution on Pb, Al, Cd, Cu, and Zn accumulation, peroxidase activity, and pigment and protein contents were investigated in shrub and tree leaves in Antakya, Turkey. We determined that industrial and traffic activities produce the most plant-incorporated air pollutants in Antakya City. Cu …
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Various industrial activities contribute heavy metals to the soil environment directly or indirectly through the release of solid wastes, waste gases, and wastewater. Phytoremediation can be potentially used to remedy metal-contaminated sites. A major step towards the development of phytoremediation of heavy metal-impacted soils is the …
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This study aimed to evaluate soil physicochemical characteristics (pH, electrical conductivity, organic matter, total N, and extractable P and K), and potentially toxic elements (As, Cu, Pb, and Zn), in non-active mines located in the Portuguese sector of the Iberian Pyrite Belt (IPB). A total of 70 sampling sites were surveyed at Aljustrel and …
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Point sources of metals affecting the surface environment develop from mining of heavy metal mineral deposits (e.g., Ettler et al., 2006, Forel et al., 2010, MacKenzie and Pulford, 2002, Monna et al., 2000) and from associated in-situ metal processing activities.In impacted areas, for example, at the abandoned Callahan …
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The Ayawilca Zn-Pb-Ag-In-Sn-Cu deposit hosts one of the largest resources among recent base-metal discoveries in central Peru and throughout the …
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The use of multiple isotopic ratios and statistical methods can substantially increase the reliability and precision of determining contamination sources and pathways. In this study, contamination sources were differentiated in three subareas in one mine area and geochemical processes were investigated using Cu, Pb, Zn, and S isotopes and …
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Bivalve shells obtained from estuary core sediments have growth zones with contents of Pb (5–76 ppm), Zn (6–443 ppm), and Cu (0–262 ppm) that do not vary …
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In this study, the concentrations and ecological risks of Cd, Cu, Pb, and Zn in soil contaminated by a tailing from Yangshuo (YS) lead and zinc (Pb⁻Zn) mine, which collapsed for more than 40 ...
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[Element] shoot :[Element] root ratios in fi eld plants (white bars) and in plants treated for 1 week with a solution containing 0.12 m M Cd, 2.7 m M Cu, 19.8 m M Pb, 42.3 m M Zn and 6.37 m M As ...
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For example, a reclamation project involving the plantation of Pinus sp. or Eucalyptus sp. trees and waste material amendments (sewage sludge and paper mill residues) in a Cu mining area located ...
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The contents of available Cu, Zn, Cd and Pb were significantly and positively correlated (P < 0.01) with the metals extracted by EDTA-2Na, DTPA, CaCl 2 and HCl, respectively, suggesting that these single extraction methods provided a good indication of the toxicity of Cu, Zn, Cd and Pb under the present experimental conditions.
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As expected, foliar Pb and Zn concentrations were elevated in plants at the sites closest to the mill, i.e., 0.25 and 2.5 km from the mine facility. Copper and Fe, both essential nutrients for plants, were also elevated in foliage at the sites closest to the mill, but not to a level that would be of concern.
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Through greenhouse cultivation and field investigation, the major constraints on plant colonization at Fankou Pb/Zn mine tailings are analysed. The results show that total Pb, Zn, Cu and Cd contents in the tailings are 34300, 36500, 215 and 82.6 mg cntdot kg-1, while their available contents are 1:5, 1963, 0.71 and 8.03 mg cntdot kg-1 respectively.
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Samples of soil, water and plants were analysed for total Zn, Cu, Pb and Ni concentrations using flame atomic absorption spectrophotometry. The trace metal concentrations in soil were the highest ...
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This study evaluated the effect of biochar and compost on physiochemical properties, heavy metal content, microbial biomass, enzyme activities, and plant growth in Pb–Zn mine tailings. In this study, a pot experiment was conducted to evaluate the effects of biochar, compost, and their combination on the availability of heavy metals, …
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A similar situation was found for the metal contaminants: bioaccessible Cu, Pb, and Zn ranged from 6 to 160, <0.5 to 23, and 6 to 3260 mg/kg in the gastric phase, respectively, whereas their bioaccessible concentrations in the lung test were very low (Cu: up to 51 mg/kg, Pb: up to 0.5 mg/kg, Zn: up to 8 mg/kg).
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The paper presents the results of a laboratory investigation conducted for assessing the feasibility of immobilising the heavy metals (As, Cd, Cu, Pb and Zn) contained in a disused mine tailings dam.Samples of tailings were mixed with relatively small proportions of bauxite red mud and power station fly ash. The sorption capacity of …
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Six plants of each species, except for Salix where four plants were used, were mounted in black styro plates and placed in 1 l plastic pots filled with 30% nutrient solution with or without the addition of heavy metals. In metal-treatment pots, the elements given were 0.12 μM Cd, 2.7 μM Cu, 19.8 μM Pb, 42.3 μM Zn and 6.37 μM As.
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In order to assess the environmental impact of soil polluted with trace metals, representative soils were collected surrounding the abandoned Pb-Zn mine mill (SM …
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Soils at a depleted copper mine in Touro (Galicia, Spain) are physically and chemically degraded and have also polluted the surrounding area. Due to these environmental problems and the large area of these mine soils, the reclamation strategies carried out at Touro have consisted of planting trees (pine or eucalyptus), amending with …
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For example, 4 found that the formation of aggregates occurred around plant roots in OM-treated Cu-Pb-Zn tailings. Hence, the colonization of native grasses as pioneer plants would be a useful …
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The drivers and mechanisms underlying succession and the spontaneous formation of plant communities in mining wasteland remain largely unknown.
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Willows are suitable candidates for phytoremediation projects. A pot experiment was conducted to evaluate the potential of using Salix unrooted cuttings for the phytoremediation of lead/zinc (Pb/Zn) and copper (Cu) mine tailings. Cuttings of 14 Salix clones were directly rooted into pots containing mine tailings. The 14 clones showed …
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The Langmuir P-sorption maximum was up to 7.72, 4.12, 4.02 and 3.62 mg P g-1 tailings, in the fresh tailings of mixed Cu-Pb-Zn streams (MIMTD7), the weathered tailings of mixed Cu-Pb-Zn streams (MIMTD5), EHM-TD (fresh Cu-stream, high magnetite content) and local soil (weathered shale and schist), respectively.
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In this research, flotation of copper, lead and zinc minerals from a copper oxide–sulfide ore was studied. The identification tests showed that the sample is a mixture of quartz, chalcopyrite ...
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Results showed that there were four types of communities (I, II, III and IV) in Sanmen Pb/Zn mine tailing. From community I to IV, the number of plant species and …
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