— 1. Introduction. Contamination of soils with metals, including Cd, Pb and Zn, causes soil degradation, which is mostly originated from human activity, posing a threat to soil health and compromising its ability to perform its functions (Kumpiene et al., 2009; Pereira et al., 2018).Mining is one of the main sources of metal pollution for soils, …
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— Copper (Cu) is an essential mineral nutrient for the proper growth and development of plants; it is involved in myriad morphological, physiological, and biochemical processes. Copper acts as a cofactor in various enzymes and performs essential roles in photosynthesis, respiration and the electron transport chain, and is a structural …
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— The prevailing process in the Cu–Pb– ... while part 3 provides information on the use of reagents in over 100 operating plants treating Cu, Cu/Zn, Cu/Pb, Zn, Pb/Zn/Ag, Cu/Ni and Ni ores ...
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In this work, the determination of metals in plant component polymers in a fern, Athyrium yokoscense, as a hyper-accumulating plant was established using steam explosion, …
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— The Pb isotopic composition of the sulfides from the Qiandongshan–Dongtangzi Pb-Zn deposit (with 206 Pb/ 204 Pb ratios of 18.06 to 18.14, the 207 Pb/ 204 Pb ratios of 15.61 to 15.71, and 208 Pb/ 204 Pb ratios of 38.15 to 38.50) is similar to that of the Late Triassic Xiba granite pluton, suggesting that they share the …
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— In this context, the main objective of this research was to evaluate the capacity of bioaccumulation of As, Ag, Cd, Cu, Pb, and Zn in tissues of native plants as well the translocation into over-ground organs …
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— Micronutrients are involved in all metabolic and cellular functions. Plants differ in their need for micronutrients, and we will focus here only on those elements that are generally accepted as essential for all higher plants: boron (B), chloride (Cl), copper (Cu), iron (Fe), manganese (Mn), molybdenum (Mo), nickel (Ni), and zinc (Zn). Several of …
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— The Southern Hunan area is located in the superposition of the Qin-Hang Cu-Pb-Zn polymetallic ore belt and the Nanling W-Sn-Mo polymetallic ore belt, which is an important window to study the …
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— Screening of native plant species from mining sites can lead to identify suitable plants for phytoremediation approaches. In this study, we assayed heavy metals tolerance and accumulation in native and dominant plants growing on abandoned Pb/Zn mining site in eastern Morocco. Soil samples and native plants were collected and …
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Current Situation on Flotation of Cu-Pb-Zn Sulfide Ore Jian-Tao Lang1, Si-Qing Liu2,*, Xu Dong3,Yi Pei4 1,2,3,4 Kunming University of Science and Technology, Kunming City, Yunnan Province, China ...
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About Pb-Cu. Lead and zinc are extremely close in nature, especially in primary deposits, and often coexist. Most of the lead-zinc minerals are sulfides and sulfates, and galena and sphalerite are the primary Pb-Zn ores. Non-sulfide: It is formed due to hypogene and supergene weathering. Mostly oxide ores like zincite, and cerussite may fall under this …
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— Phytoremediation potential of the plants are generally evaluated by determining Bioconcentration Factor (BCF), described as the ratio of pollutant concentration in the plant parts to that in the media, and Translocation Factor (TF), defined as the ratio of elemental accumulation in plant's shoot compared to plant's root (Wu et al., 2011).
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— According to BCF, TF, and BAC, these plant species could be used as effective plants for Pb phytoextraction. Stipa tenacissima and Artemisia herba-alba are better suited for phytostabilization of Cd/Cu and Cu/Zn, respectively. Our study shows that several spontaneous and native plants growing on Pb/Zn contaminated sites have a …
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— The accumulation of Zn, Cu, Cd and Pb in the shoots of all nine plant species remained below the Swiss tolerance values for fodder plants (150 mg kg(-1) Zn, 15-35 mg kg(-1) Cu, 40 mg kg(-1) Pb, and 1 mg kg(-1) Cd DW), with the only exception of Pb in Chenopodium album shoots which reached a concentration of 62 mg kg(-1) DW.
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— Zinc (Zn) is an essential micronutrient in all biological systems, where it is found in its oxidized form as a divalent cation (Zn 2+) (Andreini et al., 2006).Current estimates suggest that at least 6% of the prokaryotic proteome and 9% of the eukaryotic proteome utilize Zn, thus the second most abundant metal cofactor after Fe (Andreini et …
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— Lead accumulates in plants by soil-plant interaction as its adsorption has been detected in roots of many plants such as Helianthus annus [7], Lactuca sativa [8], Chenopodium murale [9], Brassica juncea [10], and Nicotiana tabaccum [11].The extensive roots of plants absorb mineral nutrients along with free-Pb 2+ ions from the Pb …
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— We observed a positive significant statistical correlation (p < 0.001) in March between elevation and Pb, Ni, Cu, Cr, and Zn and a negative correlation between Pb and elevation (p = 0.08).
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— Kinetics of Pb and Zn leaching from zinc plant residue by sodium hydroxide.pdf ... [35] D. Andrews, A. Raychaudhuri, C. Frias, J. Power. ... was 16.7 kJ mol −1 and demonstrates that the Cu ...
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— By modifying Flotation pH to create kinetic/speed differences between the metals and achieve sequential flotation and take full advantage of the hydrophobic …
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— Saha et al. (2022) investigated feed coal sample's existence of Cd, Cr, Co, Pb and Cu in a thermal power plant in the fly ash and bottom ash during combustion. The concentration of the same elements was also identified on the surface and groundwater, with the values ranging from 0.26 to 5.6 μg.L −1 and 0.12–2.65 μg.L −1 in the ...
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— A field survey of higher terrestrial plants growing on Lanping lead-zinc mine, China were conducted to identify species accumulating exceptionally large concentrations of Pb, Cd, Cu and Zn of 20 ...
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— How Pb uptake, translocate and accumulate in plants? What are the toxic effects of Pb on plant physiological and biochemical attributes? and what are the …
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— Request PDF | Effective procedures for the determination of As, Cd, Cu, Fe, Hg, Mg, Mn, Ni, Pb, Se, Th, Zn, U and rare earth elements in plant and foodstuffs | There are several international ...
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— P 1B-ATPases are cation transporters found in all organisms.In plants, they are found in almost all membranes including plasma membrane, internal chloroplastic membrane, thylakoids, post-Golgi and tonoplast, where they manage nutrient fluxes (Cu +, Zn 2+) as well as detoxification of toxic cations (Co 2+, Cd 2+, Pb 2+, high Zn 2+).All P …
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— This paper details the response of the variable low Cu ore to the current operating plant conditions, as well as the flowsheet development on the high Cu ore …
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— A model of the mechanisms that occur in hyperaccumulation plants upon exposure to zinc (Zn): Zn ion uptake, chelation, transport, and sequestration. Zn …
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— As a result, both OMs containing functional groups and pioneer plant culture were found to stimulate aggregation and the development of technosols in Cu/Pb-Zn tailings. X-ray diffraction spectra ...
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— The uptake and distribution of four heavy metals, including copper (Cu), cadmium (Cd), lead (Pb) and zinc (Zn), and those of total phosphorus (TP) in 30 plants …
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— Table 2 shows the concentrations of various metal ions and other water quality parameters present in process water collected from iron ore beneficiation plant followed by settling and filtration. It is observed from the results that the concentration of total Fe, Cr, Pb, Mn and turbidity are found to be 115.24 mg/L, 7.10 mg/L, 2.68 mg/L, …
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