pH Dependent Leaching Behavior of Zn, Cd, Pb, Cu and As …
— 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 …
(PDF) Exploration of remediation techniques for heavy metal
— In order to explore the pollution characteristic, ecological risks, human health risks, and sources apportionment of heavy metals (HMs), the concentrations of 9 HMs …
The geology and mineralization of the Long Chieng Track …
— The Long Chieng Track deposit contains a mineral resource of 32 Mt @ 0.77 g/t Au + 4.9 g/t Ag + 0.12% Cu. It is described here as a subvolcanic polymetallic Au-Ag-Cu-Pb-Zn deposit occurring within a folded and faulted Permian age volcanosedimentary formation in the Truong Son Fold Belt of north-central Laos.
Ion exchange removal of Cu(II), Fe(II), Pb(II) and Zn(II) …
acid extracted sewage sludge – Resin screening in weak acid media. White Rose Research Online URL for this paper: https://eprints.whiterose.ac.uk/145396/ Version: Supplemental Material ... pH Fe Pb Zn Cu Pb Zn Cu Fe Zn Cu Fe Pb 3.26 49.1 30.5 40.9 0.0204 0.623 0.834 0.0327 1.61 1.34 0.0244 1.20 0.746 3.62 15.7 27.3 18.7 0.0636 1.74 1.19 0. ...
Determination of Cr, Cu, Zn, Pb and As in Soil by Field …
— Total concentrations of Cr, Cu, Zn, Pb and As were determined in soil samples from Beijing, Xinjiang, Heilongjiang, Yunnan, and Jiangsu provinces, using field portable X-ray fluorescence spectrometry (XRF). The relationship between XRF analysis results and the concentration of heavy metals in soils was established.
Screening and Evaluation of the Bioremediation Potential of …
— This study focuses on the screening of plant beneficial Cu/Zn-resistant strains and assessment of their bioremediation potential (metal …
(PDF) Screening of Native Plants Growing on a Pb/Zn …
— 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,
Biosorption of Cd, Cu, Pb, and Zn from aqueous solutions by …
— In this study, dried and humid fruiting bodies of Tremella fuciformis and Auricularia polytricha were examined as cost-effective biosorbents in treatment of heavy metals (Cd 2+, Cu 2+, Pb 2+, and Zn 2+) in aqueous solution.The humid T. fuciformis showed the highest capacity to adsorb the four metals in the multi-metal solutions. The …
Exhumation and preservation of the Bangbule Pb-Zn-Cu …
— Exhumation and preservation of the Bangbule Pb-Zn-Cu deposit in the western Gangdese metallogenic Belt, Tibet: Constraints from fission track …
Screening of Native Plants Growing on a Pb/Zn Mining Area …
— 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 …
Retention of Cd, Cu, Pb and Zn by Wood Ash, Lime and …
— 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 …
The geology and mineralization of the Long Chieng Track …
DOI: 10.1016/J.OREGEOREV.2019.02.010 Corpus ID: 133873459; The geology and mineralization of the Long Chieng Track (LCT) subvolcanic Au-Ag-Cu-Pb-Zn deposit, Lao PDR @article{Leaman2019TheGA, title={The geology and mineralization of the Long Chieng Track (LCT) subvolcanic Au-Ag-Cu-Pb-Zn deposit, Lao PDR}, author={Peter …
Accumulation of Cu, Cd, Pb, Zn and total P from synthetic
— 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 in North China were investigated through pot trial experiments. Accumulation and distribution of heavy metals or TP were associated with plant species, tissues, metal elements and …
Exhumation and preservation of the Bangbule Pb-Zn-Cu …
The Bangbule Pb-Zn-Cu deposit is a large-scale skarn deposit that was recently discovered in the western Gangdese Metallogenic Belt. Previous studies have focused mainly on ore genesis and ore-forming fluid, while exhumation and preservation after mineralization have not been the focus. We report fission track ages (ZFT: 43 ± 3 to 52 ± 3 Ma; AFT: 24 ± 2 …
Spatial and In-Depth Distribution of Soil Salinity and Heavy Metals (Pb
— Most irrigated lands in the Republic of Kazakhstan are in its southern part, in the large deltas and ancient alluvial plains in the basins of the rivers Syr Darya and Ili. The combination of climatic features and anthropogenic pressures leads to increased salinity and contamination of cultivated soils in this region, resulting in a qualitative and …
Ore Genesis and Geodynamic Setting of Laochang …
The Laochang Ag-Pb-Zn-Cu deposit, located in the southern margin of the Sanjiang Tethys Metallogenic Belt (STMB), is the typical Ag-Pb-Zn-Cu deposit in this region. Its orebodies are hosted in the Carboniferous Yiliu …
Spatial and In-Depth Distribution of Soil Salinity and Heavy …
— The study's primary goal was to assess soil secondary salinity and selected heavy metals (Pb, Zn, Cd, Ni and Cu) contamination in irrigated arable soils.
Ion exchange removal of Cu(II), Fe(II), Pb(II) and Zn(II) from …
— 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 Cu 2+, Fe 2+, Pb 2+ and Zn 2+ from acetic, lactic and citric acid media simulated weak acid leachate. Acetic acid media displayed limited suppression of metal extraction, whilst lactic ...
Screening of dissolved heavy metals (Cu, Zn, Mn, Al, Cd, Ni, Pb…
— The system achieved preconcentration yields ranging between 44.11% (Cd) and 77.77% (Cu) after nine hours of operation, the effectiveness of metal transport being Cu > Zn > Pb > Mn > Ni > Al > Cd. The system was applied to the preconcentration of four real seawater samples before their quantification by inductively coupled plasma–mass ...
Exhumation and preservation of the Bangbule Pb-Zn-Cu …
— The Bangbule Pb-Zn-Cu deposit is a large-scale skarn deposit that was recently discovered in the western Gangdese Metallogenic Belt. Previous studies have …
Remediation of Cu-, Zn-, and Pb-Contaminated Soil Using
— The influence of different pH conditions and simulated inter-root environmental solutions on the release behavior of heavy metals (Cu, Pb, and Zn) from contaminated soils was investigated. The results indicate that heavy metal leaching from the soil is more likely to occur under acidic conditions and there is a risk of sustained …
Effect of Organic Fertilizer Application on Microbial …
The results of soil Cu and Zn content show that the Cu and Zn content increased significantly in PM compared to CK by 40.7% and 20.3%, respectively, whereas the soil …
Diagenetic History and Timing of Cu and Zn-Pb Sulfide …
— The Southern Permian basin in central Europe contains a number of important high-grade sediment-hosted Cu deposits. Laterally extensive stratabound Cu and Zn-Pb sulfide mineralized rocks are located at a major stratigraphic redox boundary, where coarse-grained continental sandstones of the uppermost Rotliegend Group are overlain …
Correction to: Tracing the Eh–pH evolution of Cu–Pb–As–Zn …
— Poot, J., Buelens, P., Dekoninck, A. et al. Correction to: Tracing the Eh–pH evolution of Cu–Pb–As–Zn supergene mineralization using detailed petrography in the …
Screening of Native Plants Growing on a Pb/Zn Mining Area …
— 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. ... In Oued el Heimer site, the highest EF values for As, …
Tracing the Eh–pH evolution of Cu–Pb–As–Zn supergene
— The abundance of tennantite (without tetrahedrite) and other sulfides makes Cap Garonne a unique mineral deposit with a highly varied secondary mineralogy. This …
Ecological Risk Assessment of Cu, Ni, Cd, Hg, Zn, Pb and As …
— To bridge this gap, 18 topsoil samples of gray-brown desert farmland soil from the Jinchuan District, Gansu Province, China, were collected to analyze the total concentrations and fractions of Cu, Ni, Cd, Hg, Zn, Pb, and As with the Tessier sequential extraction method that were mainly found in the residual fraction (Pb 50%, As 99%).
The geology and mineralization of the Long Chieng Track …
— The geology and major structures of the northwest Truong Son foldbelt and the location of the major deposits within the MEPA concession. Map adapted from British Geological Survey (1990) and GIS data from the CODES-Industry Project (2014). - "The geology and mineralization of the Long Chieng Track (LCT) subvolcanic Au-Ag-Cu-Pb …
Immobilization persistence of Cu, Cr, Pb, Zn ions by the …
— The heavy metal contents in the mine soil exceeded local soil background values, and Cu, Pb and Zn contents exceeded Chinese risk screening value of agricultural land (GB15618-2018). If the contaminated land is to be used as farmland, the soil needs to be remedied for food safety. ... The Cr, Cu, Pb and Zn contents of the liquid were …
Integrated bioinformatics analysis of As, Au, Cd, Pb and Cu
— Therefore, identifying novel contaminant biomarkers are urgently needed. Methods To better track heavy metal contaminations in soil and water, integrated bioinformatics analysis to identify biomarkers of relevant heavy metal, such as As, Cd, Pb and Cu, is a suitable method for long-term and large-scale surveys of such heavy metal …
Cultivar-specific differences in heavy metal (Cd, Cr, Cu, Pb, and Zn …
— Purpose This study aimed to investigate the cultivar differences and the involved rhizosphere mechanisms in multiple heavy metal (i.e., Cd, Cr, Cu, Pb, and Zn) accumulation in water spinach. Methods Pot experiments were performed on long-term contaminated soil to determine heavy metal accumulation in 15 water spinach cultivars. …
Screening of Native Plants Growing on a Pb/Zn Mining Area …
— Screening of native plant species from mining sites can lead to identify suitable plants for phytoremediation approaches. In this study, we assayed heavy metals …
Trophic Transfer of Cd, Cu, Pb, Zn, P and Se in Dutch …
— The elements of P, Cd, Cu, Pb, Se and Zn were further investigated. Cu, Cd, Pb and Zn are frequently studied metals (Goodyear and McNeill 1999), as elevated levels might be toxic to organisms. Zn and Cu are essential trace metals; whereas, Cd and Pb are in general considered non-essential (e.g. Rainbow 2002; Hejna et al. 2018). P is an ...
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 ...