The current review focuses on studying the effect of selected toxic metals Zn, Cu, Cd, Pb, Hg, As, Cr on plants. There is a plethora of literature focusing on the phytoremediation of individual metals from soil (Muthusaravanan et al., ... Screening of native tropical trees for phytoremediation in copper-polluted soils. Int. J. Phyto., 20 (2018
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Aboveground plant heavy metal concentrations ranked Pb > Zn > Cd > Cu, with plants having greater bioconcentration factor (BCF) values for Cd than for Pb, Cu and Zn. Plant Cd BCF averaged 1.42 ...
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With an increase in industrialization and urbanization, the release of heavy metals into soil and water has correspondingly amplified. Heavy metal affects the plants, animals and humans in a variety of ways like reducing the rate of photosynthesis, causing fatal diseases in humans and decrease the microbial biomass and growth [22].Each heavy metal like Pb, Cr, …
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Said El Hasnaoui, Mouna Fahr, Catherine Keller, Clément Levard, Bernard Angeletti, et al.. Screening of Native Plants Growing on a Pb/Zn Mining Area in Eastern Morocco: Perspectives for Phytoreme- diation. Plants, MDPI, 2020, 9 (11), pp.1-23. …
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The present research examines whether uptake of Zn, Cu, Cd, and Pb is via leaves, stems, or roots, and whether there is translocation from these to other plant parts in the pondweed P. natans L. Competition between metals at uptake and at the level of the cell wall-bound part of the metals accumulated in stem and leaf tissue was also examined. . Pondweed is a common …
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The selection of plant species at mine sites is mostly based on metal content in plant parts. Recent works have proposed referring to certain ecological aspects. However, plant traits for plant metal-tolerance still need to be accurately assessed in the field. An abandoned Zn-Pb mine site in Gard (France) offered the opportunity to test a set of ecological criteria. The …
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A significant part of the anthropogenic emissions of heavy metals ends up in wastewater. Major industrial sources include surface treatment processes with elements such as Cu, Zn, Ni and Cr, as well as industrial products that, at the end of their life, are discharged in wastes (Sun and Shi, 1998).Major urban inputs to sewage water include effluents, …
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The results demonstrate that the ore consists of 35 categories of minerals, assaying Cu 7.99%, Pb 9.39%, and Zn 1.96% in the forms of chalcopyrite, galena, and sphalerite, respectively, and silver assaying 157.9 g/t is closely associated with these sulfides; sulfides are present in amounts of 80.31% of the total, traditional gangues only 19.69% ...
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The accumulation of heavy metals in agricultural soils is of increasing concern because of food safety issues, potential health risks, and its detrimental effects on soil ecosystems (McLaughlin et al., 1999, Cui et al., 2004).Hg, Pb and Cd are of great concern because of their toxicity to human health and other organisms, whereas Zn and Cu are …
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Mixtures of artificial soil (10, 30 and 50% w/w) were prepared by adding sewage sludge (contaminated with 200 ± 13 mg kg − 1 Cu, 867 ± 18 mg kg − 1 Zn, 7 ± 0 mg kg − 1 Cd, 122 ± 6 mg kg − 1 Pb, 74 ± 2 mg kg − 1 Ni) to the fraction of infertile mineral soil. The effect of accelerated ageing of artificial soils on metal fractionation (assessed by sequential …
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Phytoremediation is an environment-friendly technology for the remediation of contaminated sites. In this work, native plant species were identified that can tolerate high concentrations of heavy …
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Atmospheric pollution of metals negatively impacts the health of terrestrial and aquatic plants and animals. Despite implementation of policies that have substantially decreased emissions of metal pollutants, their legacy …
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Using a global database of 664 hyperaccumulating plants, we constructed a phylogeny of hyperaccumulating plants of As, Cd, Cu, Cr, Mn, Ni, Pb, and Zn. We evaluated the phylogenetic randomness of plants hyperaccumulating different metals by comparing the minimum number of trait-state changes across the phylogenetic tree to a null model ...
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Our selection of metal products is among the most extensive in the industry today, with an inventory that includes a large range of copper and copper alloys.
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Among the plants, Phyla nodiflora was the most efficient in accumulating Cu and Zn in its shoots (TF = 12 and 6.3) while Gentiana pennelliana was most suitable for phytostabilization of sites contaminated with Pb, Cu and Zn (BCF = 11, 22 and 2.6). Plant uptake of the three metals was highly correlated, whereas translocation of Pb was negatively ...
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In the Lingchuan-Daoping and Xinglu Pb-Zn ore fields in northern and eastern Guangxi Autonomous Region, Pb, Cu botanogeochemical anomalies may be ascribed to the excessive …
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The concentrations of Cu, Zn, Pb, Ni, and Cr in the samples were determined using inductively coupled plasma optical emission spectroscopy (ICP-OES, Leeman Prodigy 7, USA). The relative standard deviation was controlled within 5 %, and detection limits of Cu, Zn, Pb, Ni, and Cr were 0.01, 0.01, 0.03, 0.01 and 0.01 mg kg − 1, respectively ...
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§ C151xx-C199xx Age Hardenable Cu (w/ Cd, Be, Cr, Fe) § C2xxxx Cu-Zn alloys – Brasses § C3xxxx Cu-Zn-Pb alloys – Leaded brasses § C4xxxx Cu-Zn-Sn alloys – Tin bronzes § C5xxxx Cu-Sn and Cu-Sn-Pb Phosphor bronze alloys § C6xxxx Cu-Al and Cu-Si Bronzes § C7xxxx Cu-Ni Copper Nickel and Cu- Ni-Zn Nickel Silver
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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 …
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This paper systematically reviewed the status of heavy metal contents in chemical fertilizers and manures, and effects of the fertilizers application on heavy metal accumulation in soils and crops. The contents of zinc (Zn), copper (Cu), cadmium (Cd) and lead (Pb) in superphosphate are higher than those in nitrogen fertilizers, potash and NPK compound fertilizers. The concentrations of …
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After 2 years of phytoremediation using clonally growing plants of N. mucronata as metal accumulator, concentrations of heavy metals were determined in the soil using the flame atomic absorption method for Pb, Cu, Ni and Zn and graphite furnace technique for Cd (Aanalyst 800, Perkin-Elmer). The data showed that the concentrations of all the ...
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[Results] A total of 22 isolates were able to grow in the presence of Cu 50 mg/L, Zn 400 mg/L and Pb 800 mg/L. Among them, 10 strains showed good plant growth-promoting characteristics.
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The Pusangguo deposit (1.42 Mt @ 1.42% Cu, 0.14 Mt @ 1.82% Zn, 0.08 Mt @ 1.01% Pb, and 285.8 t Co @ 140 g/t Co) is the first Co-rich Cu-Zn-Pb skarn deposit discovered in the Gangdese metallogenic belt. However, the …
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Many heavy metals are essential for plants and animals when present in the growing medium in low concentrations (micronutrients: Cu, Zn, Fe, Mn, Mo, Ni, and Co); they become toxic only when a ...
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Pb-Zn ores divide into sulfide Pb-Zn ore and oxide Pb-Zn ore. The most widely used in separating sulfide Pb-Zn ore is flotation. The sulfide Pb-Zn ore process divides into priority flotation …
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Screening of native plant species for phytoremediation potential at a Hg-contaminated mining site. Sci. Total Environ. (2016) ... (Cu, Zn, Pb, Cd, Cr, and As) in the sediment-plant system of a wetland that has been operating for 14 years was quantified. Results show that the sediments of the constructed wetland were the sink for heavy metals.
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A Cu-Pb-Zn (copper-lead-zinc) production line is utilized in mining operations to extract and process these valuable metals from ores. The extracted metals have numerous industrial and commercial applications.
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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. Antimony ...
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The Observed affinity at pH < 5.5 is Fe >>Cu » Zn > Pb, however, at the highest pH value tested (5.75) the separation of each metal decreases and the order of extraction becomes Cu » Zn > Fe > Pb. Fig. 4 b shows the pH dependence of metal distribution onto carboxylic acid functionalised C107E ( Fig. 1 F) from an acetate media.
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The Huogeqi is a large Cu-Pb-Zn polymetallic deposit having a metal reserve of 0.7113 Mt Cu at an average grade of 1.35 % Cu, 0.78 Mt Zn at 1.46 % Zn, and 0.97 Mt Pb at 1.49 % Pb (Huang et al., 2001). In addition, iron formations within the ore-hosting sequences are also mined for iron resources (Li et al., 2021). The Neoproterozoic Langshan ...
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The Cu-Pb-Zn Ore Beneficiation Process adopts a mixed flotation-concentrate regrinding process, which aims to reduce the grinding cost, is easy to manage, and uses new non-toxic flotation reagents to achieve an efficient and …
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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 good potential ...
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and native plants were collected and analyzed for As, Cd, Cu, Ni, Sb, Pb, and Zn concentrations. Bioconcentration factor (BCF), translocation factor (TF), and biological accumulation coe ffi cient ...
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The average value of TFs of the six heavy metals decreased in the order of Zn>Cd>Pb>Ni>Cu>Cr. C.acuminatus for Zn, Cd, Pb, S.scandens for Cu, Ni, Cd, Pb, P.capitatum for Ni, Cu, Zn, Cd, Pb, C.canadensis for Pb, Cd, Zn, C indicum and F. tikoua for Zn, Cd showed strong transfer ability (TF>1). However, the TF is below 1 in all plants for Cr ...
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Levels of Cu, Zn, Pb, and Cd in the leaves of the tea plant. The range for concentration of Cu, Zn, Pb, and Cd was 2.34–25.26, 43.9–71.3 µg/g, which is too low to be detected by the analytical techniques and 0.2–1., respectively. Concentration of Cu, Zn, and Pb were lower than those found in our study and concentration of Cd was higher ...
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Concentration factors (CF) of Cd, Cu, Zn, and Pb in aquatic plants and sediments in sites No. 2 & 3. Metal Concentration (ppb) Site Ecophase Cd Cu Zn Pb Site No. 2. Upstream industrial complex Downstream industrial complex Site No. 3 Upstream industrial complex Downstream industrial complex Water 1.0 4.2 1.4 6.7 Plant Eichhornia 300 21000 52500 ...
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