The total zinc recovery to the Zn and Pb-Zn concentrates is 88.8%, a value that is also coherent with the last reported plant results of 86–89% zinc recovery (Roberts et al., 2008). The copper concentrate assays 17.07% Cu at a recovery of 57.3% which is also consistent with reported data ( Roberts et al., 2008 ).
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The impact of waste disposal on trace metal contamination was investigated in eleven wetlands in the Lake Victoria Basin. Samples of soil, water and plants were analysed for total Zn, Cu, Pb and ...
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Request PDF | Phytoremediation of Pb, Zn, Fe, and Mg with 25 Wetland Plant Species from a Paper Mill Contaminated Site in North East India | In order to assess the potential of wetland plants to ...
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Cu assay (%) Zn assay (%) Calculated Feed F c 1 z 1 Cu concentrate C c 2 z 2 Zn concentrate Z c 3 z 3 Tailing T c 4 z 4 ... A Zn and Lead flotation plant has its products analyzed as follow. Calculate L, Z, T, ... Pb Zn Cu Ag Mill Feed 100 3.21 7.93 0.33 2.26
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Important heavy metals such as Cu, Zn, Fe, Mn, Mo, and Ni play important roles in plant biochemistry and physiology (Zhuang et al., 2009 ). As essential micronutrients, Cu and Zn are
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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 …
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Aims The main aim of this study was to validate the HYDRUS-2D model for the simulation of Cd, Cu, Pb and Zn transport within a soil column and their accumulation by willows. Methods A simulation of metal transport and uptake by willow was implemented using the HYDRUS-2D code. Two scenarios of the column experiment were compared: …
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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 …
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The material balance information of the Co-smelting process is calculated based on the quantitative analysis of its feed and product samples by inductively coupled plasma–atomic emission spectrometry (ICP-AES), and the distribution behaviors of the main elements (Pb, Zn, Ag, Cu, Cd, As, Sb, Bi, and S) in the process are discussed in …
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The content of Pb, Zn and Cd in the soil samples that had been collected at the site of the metallurgical plant exceeded the permitted limits (Cd > 4 mg kg⁻¹, Pb > 100 mg kg⁻¹, Zn > 300 mg ...
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The use of gasoline leads to the accumulation of particular HMs such as Cu, Ni, Pb, Cd and Zn in plants from roadside soil [135]. Vegetables that are planted close to industries show higher HM concentrations than those grown far from such sites [136]. As the general population's awareness of health dangers expands, risk assessment related …
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The capability of native plant species grown in polluted post-mining soils to accumulate metals was evaluated in view of their possible suitability for phytoremediation. The study areas included two environmental liabilities in the Cajamarca region in the Peruvian Andes. The content of As, Ag, Cd, Cu, Pb, and Zn was determined in …
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The present paper describes the technological solution for obtaining Cu, Zn, Pb, and Ag from jarosite waste raw material, with its simultaneous separation from In and Fe. By roasting at low temperatures, iron was transformed from the Fe2(SO4)3 form into Fe2O3, which is insoluble in water and slightly soluble in acid. Copper sulfate and zinc …
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Lead (Pb) shares about 10% of total pollution produced by heavy metals. The uptake of lead by the primary producers (plants) is found to affect their metabolic functions, growth, and photosynthetic activity. The accumulation of lead in excess can cause up to a 42% reduction in the growth of the roots. The current review addresses the global ...
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Bornite (Cu 5 FeS 4) Chalcocite (Cu 2 S) Covellite (CuS) Enargite (CuAsS 4) Malachite (CuCO 3.Cu(OH) 2) Cuprite (Cu 2 O) Chrysocolla (CuSiO 3.2H 2 O) Galena is the only important lead ore mineral Most lead ores are found in veins and not suitable for bulk mining The average grade of lead ore mined is higher than that of copper ore, around 3.0-8 ...
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Lowest mean parameters (mg/kg), except Zn were observed in plant samples. Mean Cu, Fe and Pb were significantly highest (P ≤ .05) in slag with values 81.93±14.19, 421.61±71.94 and 48.73±2.52 ...
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Various industrial activities contribute heavy metals to the soil environment directly or indirectly through the release of solid wastes, waste gases, and wastewater. Phytoremediation can be potentially used to remedy metal-contaminated sites. A major step towards the development of phytoremediation of heavy metal-impacted soils is the …
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Element i Pb Slag / Matte Pb Matte / O ff Gas Zn Slag / Matte Zn Matte / O ff Gas Cu Matte / Slag D i 0.18 1.25 1.95 5.63 63.45 A similar procedure was used to calculate distribution coe ffi ...
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Current Situation on Flotation of Cu-Pb-Zn Sulfide Ore Jian-Tao Lang1, Si-Qing Liu2,*, Xu Dong3,Yi Pei4 1,2,3,4 Kunming University of Science and Technology, Kunming City, Yunnan Province, China ...
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The dry plant material was pulverized, sieved through 2 ... PTM concentrations in soils and plants: The concentrations of Zn, Cu and Pb in the rhizosphere soils collected from the Kalipur
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The study was carried out within the impact zone of the Miasteczko Slaskie Zinc Smelter, Poland (N 51°41'03", E 15°57'12"), where soil samples have been collected (0-20 cm depth) in November 2007.
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Concentrations of Cr and other metals (Cu, Zn, Cd, and Pb) were analyzed in the digestion solution using inductively coupled plasma-mass spectrometry (ICP-MS, Agilent 7500Cx, USA). Accuracy of the instrumental methods was monitored through repeated analysis of the reference materials (GBW07317 for soils and GBW007603 for plants obtained
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A similar trend was observed for Pb in plants, e.g., the maximum accumulation (2347 mg kg −1) in C. rubrum at site HN-4 and minimum in Z. candida (0.26 mg kg −1) at site HN-3. 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
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The application of oxygen-rich side blowing furnaces in the direct lead-smelting process has excellent potential and ideal capability for co-processing various feedstocks, such as zinc leaching ...
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ABSTRACT As the largest industrial and population centre in China, the Pearl River Delta is facing a growing threat of heavy metal pollution from local mining and power industries. This study investigates the distribution and potential health risks of copper (Cu), cadmium (Cd), lead (Pb) and zinc (Zn) in paddy soils and rice at four typical sites. The …
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