Sludge production time series: Cu, Zn, Pb, Ni, and Co
Mean dry ash results (expressed as mean ± standard deviation, mg kg -1 ) for several metals were: 556±14 Cu, 31.8±1.3 Ni, 493±11 Zn, and 119±4 Pb. As can be seen in the …
Mean dry ash results (expressed as mean ± standard deviation, mg kg -1 ) for several metals were: 556±14 Cu, 31.8±1.3 Ni, 493±11 Zn, and 119±4 Pb. As can be seen in the …
The colored patches represent the pollution levels of As, Cd, Cr Cu, Ni, Pb, Zn, and Hg in the agricultural soil of China, with the bar graphs representing the …
In the study by Yoo et al., the use of concrete sludge as an immobilizer of heavy metals such as Cu, Pb, and Zn in aqueous solutions was evaluated. The results showed that after the application of the dry sludge, 98.3% of the Cu, 99.9% of the Pb, and 95.2% of the Zn were removed via coprecipitation on the surface of the sludge [ 21 ].
Background/Objectives: Heavy metals are a group of metals and metalloids that have a relatively high density. They can cause toxicity even at very low levels. Trace elements are required by all living organisms to maintain their normal growth, metabolism, and development. Oral intake is the main route of exposure to both heavy metals and trace …
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Our results showed that the mean values of As, Cd, Cr, Cu, Ni, Pb, and Zn in the soils were 211, 14, 105, 91, 65, 232, and 325 mg/kg, respectively. These values were significantly …
Toxic metals, such as, As, Cd, Cr, Cu, Hg, Pb, and Zn, have been wildly distributed in the environment [].Their presence in soil has raised a major concern for human health [1,2].Excessive amounts of …
Apart from the conventionally used iron (Fe) and aluminum (Al) electrodes in microalgae harvesting, experiments were designed to examine the viability of lead (Pb), magnesium (Mg), zinc (Zn), and …
Intimate knowledge of the mineralogical assembly of the Yushui complex ore rich in Cu, Pb, and Ag is essential if efficient separation processing is to be conducted. With the aid of testing instruments, such as scanning electron microscope (SEM), X-ray diffractometer (XRD), and mineral liberation analyzer (MLA) combined with energy …
At pH ≥ 3.71 the observed affinity series is Fe » Pb > Zn > Cu, with Zn = Cu at pH 2.84. Fig. 3 b presents the extraction of copper, iron, lead and zinc ions from acetate media by iminodiacetic acid (IDA) MTS9301 (Fig. 1 D) as a function of pH. This resin shows a high affinity toward copper ions, with K d values reaching beyond 10
The aim of the present study is to investigate the bioaccumulation and translocation of various heavy metals, notably copper, zinc, cadmium and lead, in the different plant organs of Trapa natans L. (the root, stem, and leaf) at nine sampling locations, as well as examining the variability in proline accumulation and chlorophyll …
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 …
Recently, heavy metal contaminated soil has been widespread concerned. Herein, rice straw-derived biochar-supported nanoscale zero-valent iron (nZVI@BC) composite was prepared and characterized, and its remediation performance in Cu, Zn, As, Cd, and Pb contaminated soil were evaluated. nZVI@BC demonstrated better …
Unlike Cr, Cu, Cd, and Pb, the maximum Zn concentration was not found in plants at site HN-4 or HN-5, but in A. philoxeroides (365 mg kg −1) at site HN-3. Furthermore, Z. candida and C. dactylon at site HN-2 and even C. rotundus at Site HN-6 contained Zn concentrations greater than 200 mg kg −1, exceeding the highest Zn …
The results showed that the green waste compost reduced the leaching of Cd and Zn up to 48% whereas the composted sewage sludge doubled the leachate concentration of Zn. However, the same soil amended with composted sewage sludge showed an efficient reduction in plant concentrations of Cd, Cu, Pb or Zn by up to 80%.
Specifically, active water molecules compete with Zn 2+ ions to be reduced into H 2 during Zn deposition process, resulting in the consumption of H 2 O and ZnSO 4, the increase of local pH value, and the production of solid non-conductive by-products Zn 4 SO 4 (OH) 6 ·xH 2 O. [5, 22] The Ni alloying could exacerbate the detrimental HER ...
Recently, a typical semi-automatic recycling line is proved to be a feasible method for resource recovery of raw material of waste CRTs. However, there are no relevant studies about health risk assessment of the particles and heavy metals diffused from this physical r ecycling process for CRTs. In this study, TSP, PM10 and heavy …
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Fine dust from copper smelting plants is an important source of raw materials for the extraction of various valuable metals. A specific feature of dust from copper smelting plants in Kazakhstan is …
The aim of this study was to investigate the concentration, health, and ecological risks of selected potentially toxic elements (e.g. Pb, Cd, Cr, Co, Cu, Zn, V, Ni, and As) bound to air particles ...
A greenhouse pot trial was designed to test the growth of V. zizanioides and P. australis in Pb/Zn mine tailings and Cu mine tailings amended with manure compost, sewage sludge, and inorganic fertilizer. Sieved tailings, manure compost, and sewage sludge at predetermined ratios (Table 1) were thoroughly mixed and subsequently …
This study was conducted to investigate the actual occurrence of six heavy metal (Cu, Zn, Pb, Cr, Ni and Cd) contaminants in environmental samples from PCB production. For the environmental samples, heavy metal concentrations in dust and PM 10 samples were on the high end of reported values worldwide, suggesting that PCB …
Soil contamination by heavy metals (HMs), including Pb, Zn, Cu, Cd, Cr, Ni, Hg, As, and Sb, is a serious threat to food systems, human health, and environmental safety [1,2,3,4,5,6].Accelerated industrialization and urbanization due to the ever-growing population have made HM-induced soil contamination an even more critical global …
It is widely recognized that the overuse of fertilizers and pesticides contributes to heavy metal contamination in the soil. Indeed, fertilizers may contain traces of heavy metals such as Cd, Cu, Zn, Pb, or As (Hou et al., 2020; Lu et al., 2012; Nziguheba and Smolders, 2008).These elements are frequently incorporated into micronutrient fertilizers …
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 …
Therefore, incineration ash should be considered a significant potential Cu, Zn, and Pb metal source. ... Line Spacing: Column Width: ... NOR2 for Zn: Boliden Odda zinc production capacity (350,000 t/year). Table 3. Selection of open-pit mines processing low-grade copper ores. Source: 2017–2022 MDO Data Online Inc. (public data) . Table 3.
This work aims to assess the bioavailability and bioaccumulation of Cr, Cu, Pb, and Zn in the soil–plant system (Erigeron canadensis L.) in the zone of anthropogenic impact in Dnipro city, a significant industrial and economic centre of Ukraine. Sampling was carried out at three locations at distances of 1.0 km, 5.5 km, and 12.02 km from the main …
A standard with Cu, Pb, or Zn sorbed to ferrihydrite was used to represent Cu/Pb/Zn bound to the iron mineral, whereas Cu, Zn, and Pb bound to Pseudomonas putida biomass was used to represent the proportion of Cu/Pb/Zn sorbed to the biomass within the BIOS (Supplementary Materials Table S3). All reported fits are normalized to …
A double focusing sector field ICP-MS (ICP-SFMS, ELEMENT, Thermo Electron Corporation, Bremen, Germany) coupled to a laser ablation system CETAC LSX 200 (Cetac Technologies Inc., Omaha, NE, USA) was used to produce images of Cu, Zn, Pb and U distributions in thin cross-sections of human glioblastoma tumors (thickness of …
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