·The hot deformation behavior of Al Zn Mg Cu Zr alloy was studied through isothermal compression experiment During hot deformation the temperature variation is ranging from 300 to 450 °C and the strain rate is from to 10 s−1 The Zener Hollomon model was applied to describe the flow behavior of Al Zn Mg Cu Zr alloy during high temperature plastic
·The Tiemurt Pb Zn Cu deposit is situated in the southern margin of the Chinese Altay Orogen Fig 2 It was first discovered in 1987 with contained metals of Mt Pb Zn and Mt Cu Wan et al 2010a Some geological and geochemical characteristics of primary VMS mineralization are preserved at Tiemurt but the major Pb Zn Cu mineralization is adjacent to
·The modification process reduced the pH of the biochar BC and increased the surface area total pore volume and total oxygen content The levels of DTPA extractable Pb Cu Zn and Ni in BCM were and mg kg −1 respectively These results indicate that few extra metals were introduced into the sediment after the
·The mineralogical and microstructural analysis revealed that Pb Zn slag is a very complex and inhomogeneous alternative raw material with utilizable levels of metals specifically Pb wt
· Pb Zn Cu and Cd in plant samples were within 90±10% Soil analysis Soil samples were air dried for 2 weeks and then sieved 2003 were measured by the ICP AES for Pb Zn Cu and Cd Data processing and statistical analysis Translocation factor TF of heavy metals from roots to shoots and enrichment coefficient EC of heavy metals
DOI / Corpus ID 89677619; Phytosiderophore induced mobilization and uptake of Cd Cu Fe Ni Pb and Zn by wheat plants grown on metal enriched soils
·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 to
·This study investigated four plant materials—CN CB PW and RC—as eco friendly plant washing agents to remove Pb Zn and Cd from contaminated soil The concentrations of the agents pH and reaction time significantly affected the Pb Zn and Cd removal p < The removal efficiencies increased in response to the increasing
·The pollution status of ten potentially toxic elements PTEs isotopic compositions Cu Zn Pb and the potential ecological risk posed by them were investigated in the PM10 fraction of road dust in Busan Metropolitan city South Korea Enrichment factors revealed extremely to strongly polluted levels of Sb Cd Zn Pb and Cu in the PM10 fraction of
·The mean concentrations of HMs decrease in the following order Zn > Pb > Cu > Cd for both studied leaves and were about and µg/g for Cd and µg/g for Cu and
inproceedings{Nazir2015AccumulationOH title={Accumulation of Heavy Metals Ni Cu Cd Cr Pb Zn Fe in the soil water and plants and analysis of physico chemical parameters of soil and water Collected from Tanda Dam kohat} author={Ruqia Nazir and Muslim Khan and Muhammad Masab and Hameed ur Rehman and Naveed Rauf and S Shahab and
·Some plants demonstrate Cd Pb and Zn accumulation in tissues and organs especially shoots providing evidence of their suitability in cleaning contaminated soils Berhongaray et al 2015; Yan et al 2020 Hence plant based remediation techniques phytoextraction phytostabilization phytodegradation and phytovolatilization most recently
·concentrations of Pb Cd Cu and Zn were also found in the tanning sludge storage sites Table2 Meanwhile met al concentrations in the soil samples collected from differ ent sites were highly correlated with Cr Zn r = p < N = 16 and Cr Cd r = p < N = 16 These significant correlations indicated a site that
·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 dispersive X ray analysis
Bayraktar I 1985 1990 Reports on several complex Cu Pb Zn and Cu Zn sulphide ores not in public domain Google Scholar McKee 1991 Case studies of flotation control in this volume Google Scholar Rao and Forssberg 1991 Electrochemistry in
·This study investigated 1 concentrations of pollutants such as As Cd Pb Tl and Zn as well as Ca Fe and Mn in soils developed on old heaps of waste rock localized in beech forests 2
·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 to
·The UASB system achieved a sulfate bioconversion of 69% and an organic matter removal as COD of 88% after transient state with the best COD SO42− ratio found Using a statistical analysis by clusters metal sulfide production of 74 mg L−1 and removals of 39 70 79 and 65% for Pb Cu Zn and Fe respectively were obtained
·The overall objectives of this research were 1 to determine the concentrations of Pb Cu and Zn in plant biomass growing on a contaminated site; 2 to compare metal concentrations in the aboveground biomass to those in roots and in soils and 3 to assess the feasibility to use these plants for phytoremediation purpose This process uses
·The highest values of soil enrichment factors of metals As Ni Cu Zn Pb were recorded for the sand fraction composed of iron oxyhydroxides and hematite whereas
·Moín on the Caribbean coast of Costa Rica is a multi use coastal zone with a variety of human activities that can cause metal pollution With the purpose of assessing the current environmental burden due to heavy metal presence in the marine environment of Moín and their bioaccumulation in organisms of the nearby coral reef we determined seven metals
·1 Introduction The mining industry in Mexico is an important economic activity that provides % of the National Gross Domestic Product [] being mostly metallic extraction of Cu Pb Ag Au Fe Zn Mn Cd Mo Bi Sb As Sn Se and so forth through 902 mining complexes [] Although mining is considered an important economic sector it unfortunately
·Huludao Zinc Plant in Huludao City China is the largest zinc smelting plant in Asia Heavy metals have contaminated its neighboring environment seriously We collected 20 vegetables and the corresponding soil samples from eight sampling plots near Huludao Zinc Plant to investigate health risk of Hg Pb Cd Zn and Cu to the inhabitants around Huludao Zinc