After preliminary screening, 19 isolates that were resistant to both 300 mg⋅L -1 Cu and 300 mg⋅L -1 Zn, and simultaneously growing on ADF were selected for further evaluation of …
Nonferrous smelting is an important source of heavy metals in soil, which causes different degrees of soil pollution, especially in lead–zinc (Pb/Zn) smelting areas. Based on the Pb/Zn environmental release during the Pb/Zn mineral smelting processes in 31 Chinese provinces from the period 2000 to 2015, the study analyzed the …
In the present work, we focus on determining the Cu−Zn interaction and the state of Zn (O) x on an "inverse" model Cu/MgO:ZnO catalyst, by investigating the structure of the calcined and reduced Zn …
Therefore, combination of UNMIX, PMF model and Pb-Zn-Cu isotopic compositions showed good coordination in quantitative and specific source identification of heavy metals in agricultural soils.
In particular, the heavy metals Cu, Zn, Pb, and Cd cause more prominent pollution problems for the watershed, which have impacted Raohe and the rural ecological environment of the Poyang Lake ...
In particular, the heavy metals Cu, Zn, Pb, and Cd cause more prominent pollution problems for the watershed, which have impacted Raohe and the rural ecological …
To further trace the Pb-Zn-Cu accumulation and remobilization processes, systematic in-situ trace elements in sulfides of different generations are analyzed using LA-ICP-MS. Ti-Mn-Cu-Pb-Zn-Bi concentrations in pyrite show a trend of progressive decrease from early to late generations.
Meanwhile, the adsorption mechanisms of Cu 2+, Zn 2+ and Pb 2+ by lignite and MML were revealed by combining the adsorption isotherm model and the adsorption kinetics …
An attempt was made from separate published data to correlate total soluble Cu, Zn, Cd and Pb in soils to soil pH, organic matter content and total metal content. For Cu, the total Cu content of ...
The results of the preliminary tests demonstrated that the Cu-Pb-Zn bulk flotation and partial Cu-Pb bulk flotation, followed by separation deal with a complex process flowsheet and reagent scheme, were difficult to realize the purposes of "discarding gangue minerals as soon as possible" as well as the Cu-Pb-Zn separation, due to good ...
IX offers an effective method for the recovery of these metals from a leachate. This study presents the pH performance of six selected IX resins in extracting Cu2+, Fe 2+, Pb 2+ and Zn 2+ from acetic, lactic and citric acid media simulated weak acid leachate.
In this paper, the effects of Cu and Zn on the performance of Cu-Mn-Zn/ZrO 2 catalysts for hydrogenation of CO 2 to methanol were studied. It was found that after Zn modification, the catalytic performance of the catalyst was greatly improved.
As, Cd, Cr, Cu, Pb, and Zn content in soil and plants was studied in the area of 716 m from the enterprise for the production and processing of batteries in Dnipro city in Ukraine.
The quest for new, promising and indigenous plant growth-promoting rhizobacteria and a deeper understanding of their relationship with plants are important considerations in the …
As, Cd, Cr, Cu, Pb, Zn content in soil and plants was studied in the area 716 m from the enterprise for the production and processing of batteries in Dnipro city in Ukraine.
Ion exchange removal of Cu (II), Fe (II), Pb (II) and Zn (II) from acid extracted sewage sludge - Resin screening in weak acid media
TSP, PM 10 and health risk assessment for heavy metals (Cr, Ni, Cu, Zn, Cd, Pb) in the ambience of the production line for waste cathode ray tube recycling
In addition, high concentrations of Pb, Cd, Cu, and Zn were also found in the tanning sludge storage sites (Table 2). Meanwhile, met-al concentrations in the soil samples collected from differ-ent sites were highly correlated with Cr-Zn (r = 0.671,
Remediation mechanism of Cu, Zn, As, Cd, and Pb contaminated soil by biochar-supported nanoscale zero-valent iron and its impact on soil enzyme activity
After preliminary screening, 19 isolates that were resistant to both 300 mg⋅L -1 Cu and 300 mg⋅L -1 Zn, and simultaneously growing on ADF were selected for further evaluation of PGP parameters (secondary screening).
To investigate and evaluate the spatial distribution of Zn, Pb and Cd in the soil around a municipal solid waste incineration plant and its ecological risks, Zn, Pb and Cd were analyzed in soil samples around a municipal solid waste incineration plant in Chengdu, Sichuan Province, China. The results revealed that the average content of Zn and Pb did …
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The results of heavy metal-contaminated soil remediation showed that B. intermedia TSBOI effectively increased the proportion of carbonate-bound states of Cu, Pb and Zn in the soil and reduced the bioavailability of heavy metals within 30 days. B. intermedia TSBOI could adapt fully to the soil environment and became a dominant genus.
From the Middle Ages until the beginning of the twentieth century, extensive Zn–Pb mining and smelting was carried out in East-Belgium. By lack of waste treatment techniques and sustainable management practices, metal-bearing slags and unprocessed waste were dumped in huge tailings, which still represent an important source of …
Heavy metals are of interest due to their deleterious impacts on both human and ecosystem health. This study investigated the effectiveness of wood ash in immobilizing the heavy metals Pb, Cd, Cu and Zn from aqueous solutions. The effects of initial metal concentrations, solution pH, ash dose and reaction time on metal sorption, as well as the …
Meanwhile, the adsorption mechanisms of Cu 2+, Zn 2+ and Pb 2+ by lignite and MML were revealed by combining the adsorption isotherm model and the adsorption kinetics model.
Download scientific diagram | Sludge production time series: Cu, Zn, Pb, Ni, and Co analysis (mg kg -1, dry ash preparation) of 30-min from publication: Effect of Processing …
The concentration and speciation of Cu, Pb and Zn in soil samples collected around the lead–zinc smelting plant of Baoji, NW China, were determined using X-ray fluorescence …
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The highest BAF of each metal calculated was as follows: Cr (0.091 in winter) > Cu (0.054 in autumn) > Pb (0.016 in summer) > Zn (0.011 in summer). Highest root-rhizome TF values were recorded for four metals: 6.450 for Cu in autumn, 2.895 for Zn in summer, 7.031 for Pb in autumn, and 2.012 for Cr in autumn.
Copper, lead, and zinc are common metallic minerals that are typically found in the form of sulfide minerals such as chalcopyrite…
Request PDF | Accumulation of Cu, Zn, Pb, and Cd in Edible Parts of Four Commonly Grown Crops in Two Contaminated Soils | Soil heavy metal pollution resulting from human activities is causing ...
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In addition, high concentrations of Pb, Cd, Cu, and Zn were also found in the tanning sludge storage sites (Table 2). Meanwhile, met-al concentrations in the soil samples collected …
