2021年9月1日· Hence, the aim of this study is (1) to elucidate whether sand mining affects the remobilization of Cu and Zn, (2) to determine if sand mining has such adverse effects2019年8月1日· The total background concentrations of Pb, Cu, and Zn in soil were measured by inductively coupled plasmaoptical emission spectrometry (ICPOES,Immobilization of Pb, Cu and Zn in contaminated soil using
2015年9月9日· The exchange kinetics of Cd, Cu, Pb, and Zn in seven mining and smeltingcontaminated soils and the other two anthropogenically contaminated soils was2012年9月26日· The speciation and mobility of some selected trace metals (As, Cu, Mn, Pb and Zn) in sediments with depth was investigated in the Cam Rivermouth (Vietnam) bySpeciation and Mobility of Selected Trace Metals (As, Cu
2017年6月15日· Bioaccessibility of As, Cu, Pb, and Zn in mine waste, urban soil, and road dust in the historical mining village of Kaňk, Czech Republic Original Paper Published:2023年9月1日· This study investigates the diagenetic evolution and style of sulfide mineralization in three drill cores that intersect Cu and ZnPb sulfide mineralized rocks atDiagenetic History and Timing of Cu and ZnPb Sulfide
2020年1月31日· Jie Pang ( 庞杰) & Jilai Ning ( 宁继来) 236 Accesses 13 Citations Explore all metrics Abstract To recover Zn, Pb, Fe and Si from a lowgrade mining ore in themine where the complex ZnPbAgCuAu ore (Table 2) is mined from 500 to 1400 m below the ground The core samples were initially crushed to −3 mm using a laboratory jawNanobubble assisted flotation separation of complex Pb–Cu
Minerals 2023, 13, 1165 2 of 21 Zn at 182%, and 2858 t Co at 140 g/t Co [4] Previous studies have mainly focused on the geological characteristics [5,6], diagenetic and2023年2月27日· Heavy metal contamination in soils seriously threatens human health and aggravates the global pollution burden In this study, we investigated the risk of heavy metal contamination in soils at a ZnPb mineral processing plant in Longnan, China, and the effects of different heavy metal contamination levels on diverse microbial communitiesEffects of different heavy metal pollution levels on microbial
2015年9月11日· The exchange kinetics of Cd, Cu, Pb, and Zn in seven mining and smeltingcontaminated soils and the other two anthropogenically contaminated soils was investigated by using multielementary stableThis study was conducted to investigate the pollution load index, fraction distributions, and mobility of Pb, Cd, Cu, and Zn in garden and paddy soils collected from a Pb/Zn mine in Chenzhou City, China The samples were analyzed using Leleyter and Probst's sequential extraction procedures Total mePollution, fractionation, and mobility of Pb, Cd, Cu, and Zn in
Evaluating solubility of Zn, Pb, Cu and Cd in pyrite cinder using leaching tests and geochemical modelling Charlotta Tiberg a, *, David Bendz a, Gunilla Theorin b, Dan B Kleja a, b a Swedish2013年10月20日· From the Middle Ages until the beginning of the twentieth century, extensive Zn–Pb mining and smelting was carried out in EastBelgium By lack of waste treatment techniques and sustainable management practices, metalbearing slags and unprocessed waste were dumped in huge tailings, which still represent an importantpH Dependent Leaching Behavior of Zn, Cd, Pb, Cu and As
2000年5月1日· Enrichment of the palaeosol in Cu, Pb and Zn indicates that the Romans worked these metals Comparison with the Awre Formation The first clear difference is that the lower Rumney and Wentlooge Formations contain significantly less TOC than the Awre Formation (1–2%, Allen et al , 1990 )2023年11月3日· The Santa María and Antares ZnPb(Ag) skarn deposits in the Velardeña Mining District are located in central–NW Mexico They lie 470 m apart along the contact between Oligocene felsic intrusions and Cretaceous limestones, and were developed during prograde, retrograde, postore (Santa María), and late stages Firstly, the prograde stageMetallogenic model of the Eocene Santa María and Antares
2003年7月1日· Total Cu, Zn, Pb and Cr contents in soils and residual fractions were determined by attacking about 02000 g of dried soil samples with HNO 3 –HF–HClO 4 mixture followed by elemental analysis The Cu, Zn, Pb and Cr 3 312019年8月1日· The effectiveness of immobilization was evaluated by analyzing the leachable fraction of heavy metals from the ballmilled soil When the milling time was 2 h, Pb, Cu, and Zn leaching concentrations decreased from 1392 mg·L, 283 mg·L, and 11442 mg·L to 0027 mg·L, 059 mg·L, and 016 mg·L, respectively; these values were all lowerImmobilization of Pb, Cu and Zn in contaminated soil using
2023年12月12日· Rainfall supplies anthropogenic dTMs (Cd, Cu, Pb and Zn) with fluxes equivalent to 20%–68% of those from the Congo River on the Congo shelf Plain Language Summary The Congo River has the second largest freshwater discharge volume globally and creates an extensive nearequatorial plume into the Atlantic OceanEnviron Monit Assess (2010) 168:215–222 DOI 101007/s1066100911054 Pollution, fractionation, and mobility of Pb, Cd, Cu, and Zn in garden and paddy soils from a Pb/Zn mining area Ming LeiPollution, fractionation, and mobility of Pb, Cd, Cu, and Zn in
2023年9月1日· In either case, the zonation is characterized by (1) a Cu zone, adjacent to the Rote Fäule alteration, comprising chalcocite, bornite, chalcopyrite, and some other minor Cu sulfides, (2) an overlapping ZnPb zone, and (3) aBorg et)2023年12月1日· More geological and isotopic studies suggest that these ZnCuW layered orebodies and PbZnAg veins were distal products of the porphyryrelated metallogenic system (Ye et al, 2006, Mao et al, 2011, Xiang et al, 2012, )A giant porphyryskarnepithermal MoWCuZnPbAg
2016年10月17日· Solidification characteristics and mechanisms of cement treated Pb/Zn contaminated soils from a mining site in Hunan Province, China October 2016 International Journal of Environment and Pollution2002年7月1日· SAND INJECTION AND LIQUEFACTION STRUCTURES IN THE JINDING ZnPb DEPOSIT, YUNNAN, CHINA: INDICATORS OF AN OVERPRESSURED FLUID SYSTEM AND IMPLICATIONS FOR MINERALIZATION Economic Geology ZnPb Mineralization Associated with Salt Diapirs in the BasqueCantabrian Basin, NorthernJinding: A Giant Tertiary SandstoneHosted ZnPb Deposit
2023年12月1日· ZnPbCu sulfides in the brecciatype ores occur along grain boundaries of finegrained carbonates in the matrix and cement host rock fragments Accompanying the ZnPbCu sulfides, pyrite, pyrrhotite, biotite, muscovite, chlorite, carbonates and quartz are common hydrothermal gangue minerals observed in most ores ( Li et al, 2021 , Zhong2012年10月15日· Considering Cu, Zn, Pb, Sb and Cd, all plants, with the exception C album, would be suitable for grazing on similar shooting range soils Highlights Determination of Cu, Zn, Pb, Sb and Cd plant uptake by eight plant species Determination of Cu, Zn, Pb, Sb and Cd bioavailability on shooting range soils Assessment of possibleAccumulation of Sb, Pb, Cu, Zn and Cd by various plants
2012年10月1日· Our previous studies demonstrated that heavy metals (Cu, Zn, Pb and Cd) were mainly found in substrate sludge which originated from the local mining areas, flowed into the Yellow River and2002年5月1日· There, the streams collecting the rainwash of wastes in abandoned CuPbZnFe mining areas show absolutely high REE contents in running waters Furthermore, the “normalized” values of the measured REE contents show a 2High contents of rare earth elements (REEs) in stream waters
Longterm mining activities have caused serious heavy metals contamination of farmland soils In this study, we investigated the concentrations, distributions, accumulations, potential ecological risk, and sources of eight heavy metals in farmland soils of PbZn mining areas According to the soil sThe Laochang AgPbZnCu deposit, located in the southern margin of the Sanjiang Tethys Metallogenic Belt (STMB), is the typical AgPbZnCu deposit in this region Its orebodies are hosted in the Carboniferous Yiliu Formation volcanicsedimentary cycle and occur as stratiform, stratoidOre Genesis and Geodynamic Setting of Laochang Ag
2009年5月30日· Mining and smelting of Cu and Zn metal ores are important sources of Cu and Zn environmental degradation to soil and water sources [4] Although Cu and Zn are not a human health concern, their phytotoxic levels can result in soil erosion by wind and water, thereby increasing human exposure to other metal contaminants (Pb and Cd) [5] Current Situation on Flotation of CuPbZn Sulfide Ore JianTao Lang1, SiQing Liu2,*, Xu Dong3,Yi Pei4 1,2,3,4 Kunming University of Science and Technology, Kunming City, Yunnan Province, ChinaCurrent Situation on Flotation of CuPbZn Sulfide Ore
2013年6月1日· Simulation modeling suggested ionic species as the dominant form of metals in leachate, such as Pb 2þ and Zn 2þ (Navarro et al, 2008); Pb 2þ , Zn 2þ , and Cu 2þ (Islam et al, 2016), and areof As, Ag, Cd, Cu, Pb, and Zn was determined in individual plant organs and correlated with soil characteristics The degree of the pollution depended on the metal with results ranging fromAccumulation of As, Ag, Cd, Cu, Pb, and Zn by Native Plants
2024年1月1日· During 1950–55, the Pefka mining area (Fig 1) was active for exploitation of the Cu ore; with the Pb and Zn concentrates as byproducts (Gialoglou and Drymonitis, 1983) The estimated total production of this mine was 3000 t2023年6月19日· The Wedge deposit was discovered in 1956 by Cominco, and it operated the mine between 1962 and 1968Nine Mile Metals enjoys XRF results up to 24% Cu and 38%
2000年3月1日· Bioaccessibility of As, Cu, Pb, and Zn in mine waste, urban soil, and road dust in the historical mining village of Kaňk, Czech Republic Environ Geochem Health 2018 Aug;40(4):14951512 doi: 101007/s10653017999912009年9月1日· Pollution, fractionation, and mobility of Pb, Cd, Cu, and Zn in garden and paddy soils from a Pb/Zn mining area September 2009 Environmental Monitoring and Assessment 168(14):21522Pollution, fractionation, and mobility of Pb, Cd, Cu, and Zn in
2017年8月2日· The objective of this study was to evaluate the effectiveness of inorganic amendment mixtures including zeolite, limestone and phosphate rock for the remediation of a multimetal contaminated acidic soil Firstly, a 40day batch experiment using orthogonal design was conducted to select the best inorganic amendment mixtures for increasing2021年1月27日· The capability of native plant species grown in polluted postmining 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, CAccumulation of As, Ag, Cd, Cu, Pb, and Zn by Native Plants
2009年8月8日· This study was conducted to investigate the pollution load index, fraction distributions, and mobility of Pb, Cd, Cu, and Zn in garden and paddy soils collected from a Pb/Zn mine in Chenzhou City, China The samples were analyzed using Leleyter and Probst’s sequential extraction procedures Total metal concentrations including Pb, Cd,2017年6月15日· Given the proximity of residential communities to these mining residues, we investigated samples of mine waste (n = 5), urban soil (n = 6), and road dust (n = 5) with a special focus on the Bulk chemical analyses indicated that As is the most important contaminant in the mine wastes (~115 wt%), urban soils (~2900 mg/kg) andBioaccessibility of As, Cu, Pb, and Zn in mine waste, urban
1997年7月1日· Fate of Fe, Mn, Cu, Zn, Cd, Pb and SO4 in a groundwater plume 455 Seep site I Side tributary 80 10 1,000 800 800 200 100 0 0 0 200 400 800 800 DISTANCE BELOW MILL, m Fig 6 Dissolved metal concentrations in the East2017年12月14日· The transferuptakebioavailability of phosphorus (P), Cu, Cd, Zn, and Pb in rhizosphere of Zizania latifolia (ZL) and Myriophyllum verticiilaturn (MV) cultivated in rhizoboxes in Lake Erhai (China) is evaluated by DGT (diffusive gradients in thin films) technique DGT induced fluxes in sediments (DIFS) model reveals that resupply abilityTransfer Mechanism, Uptake Kinetic Process, and
2003年7月1日· About 150 soil samples from 20 urban and 3 nonurban soil profiles in Nanjing were analyzed for total concentrations of Cu, Zn, Pb and Cr using ICP spectrometry The Cu, Zn, Pb and Cr of 23 urban and nonurban topsoils (A horizon soils) were sequentially extracted into 5 fractions according to the method of Tessier [Anal2005年3月1日· Soil samples were collected from a disused agricultural field in the Yuen Long area of Hong Kong The samples were sieved through a 2 mm sieve and airdried for 3 dThe soils were artificially contaminated with Pb (2500 mg kg −1 of soil) as Pb 3 (OH) 2 (CO 3) 2 (lead hydroxide carbonate) and PbS (a common lead sulfide in miningEnhanced phytoextraction of Cu, Pb, Zn and Cd with EDTA
DOI: 101016/JJAFREARSCI201709005 Corpus ID: Bioavailability of Pb, Zn, Cu, Cd, Ni and Cr in the sediments of the Tessa River: A mining area in the NorthWest Tunisia To determine whether the national soil heavyWater Air Soil Pollut (2023) 234:476 Page 3 of 14 1 3 476 Vol: () three types of washing agents for the study of heavy metal removal eciency The study aimed to (i) investigate the release behavior of Cu, Zn, and Pb fromRemediation of Cu‐, Zn‐, and Pb‐Contaminated Soil Using
