Ion exchange removal of Cu(II), Fe(II), Pb(II) and Zn(II) …
T D ACCEPTED MANUSCRIPT 1 1 Ion Exchange Removal of Cu(II), Fe(II), Pb(II) and Zn(II) from 2 Acid Extracted Sewage Sludge – Resin screening in weak acid 3 media 4 James P. Bezzina1, Laura R. Ruder1, Robert Dawson2, Mark D. Ogden1 5 1Separation and Nuclear Chemical Engineering Research (SNUCER), Department of Chemical and 6 Biological Engineering, …
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Concentration and pollution assessment of heavy metals …
The range and averaged values of heavy metal concentrations (mg·kg −1) in surface sediments are: Cu, 15.58–793.52 (197.21); Zn, 11.21–72.09 (32.31); Pb, …
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Policy adjustment impacts Cd, Cu, Ni, Pb and Zn …
Pollution control policies (PCP) have been implemented in some e-waste dismantling areas in China to curb metal contamination since 2012. We investigated the …
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Heavy metal(loid)s in agriculture soils, rice, and wheat across …
Mounting studies suggests that elevated concentrations of Cu, Pb, Zn, and Hg are often attributed to anthropogenic sources, and Pb has specially associated with mining, …
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(PDF) Toxic metal concentrations and Cu–Zn–Pb
Bi-plots of Cu, Zn, and Pb isotopic compositions indicated that tires can be clearly discriminated from natural-origin and other non-exhaust traffic emission sources. ... Discover the world's ...
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The world's lead-zinc mineral resources: Scarcity, data, issues …
Sediment-hosted Pb-Zn deposits dominate contained Pb-Zn metal resources with 141.6–345.1–3.9 Mt Pb-Zn-Cu, followed by Volcanogenic Massive Sulfide deposits with …
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Combination of UNMIX, PMF model and Pb-Zn-Cu isotopic …
UNMIX model has a strict data screening process based on an eigenvalue analysis. ... Zn, Pb and Cu in highly polluted soils were beyond the WHO (World Health Organization) limits (Chen et al., 2009a, Chen et ... Pb-Zn-Cu isotopic compositions gave further confirmation that irrigated river sediments and TSP were the primary anthropogenic source ...
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Cu, Pb, and Zn Sorption to Biogenic Iron (Oxyhydr)Oxides …
To better understand metal binding by BIOS, Cu, Pb, and Zn, sorption rate and isotherm studies were conducted with synthetic two-line ferrihydrite and BIOS. ... J.L. Copper and Zinc Removal Using Biogenic Iron Oxides. In Proceedings of the World Environmental and Water Resources Congress 2012: Crossing Boundaries, Albuquerque, NM, USA, 20–24 ...
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Single and joint exposure of Pb, Cd, Hg, Se, Cu, and Zn were …
Methods: The blood levels of lead (Pb), cadmium (Cd), mercury (Hg), selenium (Se), copper (Cu) and zinc (Zn) and the results of the cognitive function tests were extracted from 811 elderly ...
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Screening and Evaluation of the Bioremediation …
Screening and Evaluation of the Bioremediation Potential of Cu/Zn-Resistant, Autochthonous Acinetobacter sp. FQ-44 from Sonchus oleraceus L September 2016 Frontiers in Plant Science 7(755)
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Flotation of Copper Ores with High Cu/Zn Ratio: Effects of Pyrite on Cu
In general, Cu-Zn sulfide ores consisting of a Cu/Zn ratio of 0.4–1:1 (w / w) [16,17,18,19,20] are processed by a two-step flotation: (i) the selective flotation of Cu minerals while depressing sphalerite using zinc sulfate (ZnSO 4)—a sphalerite depressant—and other gangue minerals such as pyrite (FeS 2) and silicate minerals under ...
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Remediation of Pb-, Zn-, Cu-, and Cd-Contaminated Soil in a …
The addition of illite improved the reducible fractions of Pb, Zn, and Cu by 5.4%, 2.1%, and 1.2%, respectively, compared to the control. The contents of Pb, Zn, Cu, and Cd in a reducible state in the co-cropping mode were higher compared to single species of Epipremnum aureum, and they were lower than single species of Ilex cornuta. The ...
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(PDF) Screening of Native Plants Growing on a …
As, Cd, Cu, Ni, Sb, Pb, and Zn in digested soil or plant samples were then analyzed in ICP-AES (inductively coupled plasma–atomic emission spectrometry; Ultima2 JY, Horiba Company, Edison, NJ,
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Ion exchange removal of Cu(II), Fe(II), Pb(II) and Zn(II) from …
Request PDF | Ion exchange removal of Cu(II), Fe(II), Pb(II) and Zn(II) from acid extracted sewage sludge – Resin screening in weak acid media | A shortage of phosphate rock resources has led to ...
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Characteristics of Potentially Toxic Elements, Risk Assessments…
The pollution status of ten potentially toxic elements (PTEs), isotopic compositions (Cu, Zn, Pb), and the potential ecological risk posed by them were investigated in the PM10 fraction of road dust in Busan Metropolitan city, South Korea. Enrichment factors revealed extremely to strongly polluted levels of Sb, Cd, Zn, Pb, and Cu in the PM10 fraction of road …
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Pollution and health risk assessment of heavy …
In this study, Cu, Pb, Ni, Zn, Cd, Cr, As and Hg are considered to have chronic non-carcinogenic health risks, while Ni, Cd, Cr and As are considered to have carcinogenic risks (Ferreira-Baptista and De Miguel Citation 2005).
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Pollution characteristics, bioavailability, and risk assessment …
To analyze contamination levels, spatial distribution characteristics, bioavailability, and risks of heavy metals (Cr, Ni, Cu, Zn, As, Cd, Hg, and Pb), 65 road dust samples were …
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Environmental contamination characteristics of …
The indexes of geo-accumulation (I geo) of eight heavy metals ranged from −3.62 to 7.67, while Zn, Pb, and Cd showed the highest environmental risk levels as the priority pollutants. The contamination levels of …
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Revealing the orogenic genesis of Huogeqi Cu-Pb-Zn …
In addition to the Huogeqi, other cases of orogenic-type base metal deposits have also been reported worldwide, including the Coeur d'Alene Cu-Ag deposit in the Western American Craton (Leach et al., 1988), the Elura Ag-Pb-Zn deposit in New South Wales, Australia (De Roo, 1989), the Tieluping Ag-Pb deposit in Henan Province, China (Chen et al ...
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Effects of long-term zinc smelting activities on the …
Zn smelting activities involving multiple heavy metals, including Pb, Cd, Zn, Cu, Cr, Ni, Mn, and As, led to their accumulation in the soils. Pb, Cd, and As were the most contaminated elements, with 93.6%, 90.3% and 48.4% …
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Worldwide Examination of Magnetic Responses to …
Pearson's correlation and redundancy analysis show significant positive correlations of Pb, Zn, and Cu with χ l f (r = 0.51–0.53) and Mn and Fe with χ f d (r = 0.50–0.53), while Pb, Zn, Cu, and As metals were shown to be …
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Pollution levels and probability risk assessment of potential …
In this study, we compiled a database of eight potentially toxic elements (PTEs) Pb, Zn, Cd, As, Cr, Ni, Cu, and Mn in the soil of Pb–Zn smelting areas by screening the published …
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Decoupling of Cu and Zn in sediment-hosted base metal …
Sediment-hosted base metal deposits (including Mississippi-Valley type, "sedex" type, and redbed- and sediment-hosted stratiform Cu, amongst others) are found worldwide (Leach et al., 2005, Wang et al., 2014, Hoggard et al., 2020) and are important sources of metals that are increasingly in demand for sustainable development and the transition to a clean …
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Closely-related species of hyperaccumulating plants and their ability
While screening for ... Given the limitation in the database, As, Cd, Cu, Mn, Ni, Pb and Zn hyperaccumulators were used to calculate their ... research represents the first study that systematically investigated the phylogenetic patterns of As, Cd, Cu, Mn, Ni, Pb and Zn hyperaccumulators worldwide. We found a strong phylogenetic signal for As ...
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