Phyto-extraction of zinc, lead, nickel, and cadmium from a zinc leach residue

2020 ◽  
Vol 266 ◽  
pp. 121539
Author(s):  
Melina Roshanfar ◽  
Misagh Khanlarian ◽  
Fereshteh Rashchi ◽  
Babak Motesharezadeh
Keyword(s):  
Leach Residue ◽  
Lead Nickel

Phyto-extraction of zinc, lead, nickel, and cadmium from zinc leach residue by a halophyte: Salicornia europaea

2020 ◽  
Vol 148 ◽  
pp. 105797
Author(s):  
Misagh Khanlarian ◽  
Melina Roshanfar ◽  
Fereshteh Rashchi ◽  
Babak Motesharezadeh
Keyword(s):  
Leach Residue ◽  
Salicornia Europaea ◽  
Lead Nickel

TOXICO EPIDEMIOLOGY OF LEAD, NICKEL AND CADMIUM LEVELS IN SHEEP SERUM OF AL BASRAH PROVINCE

2016 ◽  
Vol 15 (1) ◽  
pp. 48-53
Author(s):  
Rashad F.Ghadhban ◽  
Mohammad R.S.Alattabi ◽  
Nameer A.Kareem Alzubaidi
Keyword(s):  
Lead Nickel

COPPER ALLOY No. C31600

Alloy Digest ◽  
1980 ◽  
Vol 29 (7) ◽  
Keyword(s):  
Electrical Conductivity ◽  
Corrosion Resistance ◽  
Shear Strength ◽  
Physical Properties ◽  
Copper Alloy ◽  
Heat Treating ◽  
Screw Machine ◽  
Copper Zinc ◽  
Machine Parts ◽  
Lead Nickel

Abstract Copper Alloy No. C31600 is a free-machining copper-zinc-lead-nickel alloy with moderate strength and good ductility. It has fairly good electrical conductivity and an attractive, rich-looking bronze color. Its many applications include screw-machine parts, architectural fabrications, electrical connectors and hardware. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and shear strength. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Cu-399. Producer or source: Brass mills.

Marine Quality Standards: Their Derivation and Application in the United Kingdom

1985 ◽  
Vol 17 (6-7) ◽  
pp. 1187-1198 ◽  
Author(s):  
G. Mance ◽  
A. R. O'Donnell
Keyword(s):  
Coastal Waters ◽  
Sublethal Effects ◽  
Quality Standards ◽  
Toxicity Data ◽  
Marine Life ◽  
Nickel Zinc ◽  
The United Kingdom ◽  
The Common ◽  
Lead Nickel ◽  
The Impact

This paper discusses the derivation of environmental quality standards for coastal waters and the difficulties of using such standards for controlling industrial discharges. Attention is focused on the common List II substances, copper, chromium, lead, nickel, zinc and arsenic - and their effects on marine life. The adequacy of existing toxicity data is discussed and it is concluded that long exposure tests are required to provide information on sublethal effects. Such data are currently limited. It is also important that consideration be given to the effects that reducing salinities and increasing temperatures have in increasing the toxicity of these substances. The complexity of interpreting the results of laboratory toxicity data to coastal waters is discussed with reference to a study of the impact of an industrial discharge.

scholarly journals Green copper oxide nanoparticles for lead, nickel, and cadmium removal from contaminated water

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Alaa El Din Mahmoud ◽  
Khairia M. Al-Qahtani ◽  
Sahab O. Alflaij ◽  
Salma F. Al-Qahtani ◽  
Faten A. Alsamhan
Keyword(s):  
Experimental Data ◽  
Copper Oxide ◽  
Copper Oxide Nanoparticles ◽  
Bet Surface Area ◽  
Oxide Nanoparticles ◽  
Cadmium Removal ◽  
Cuo Nps ◽  
Pseudo Second Order ◽  
Isotherm And Kinetic Models ◽  
Lead Nickel

AbstractEnvironmentally friendly copper oxide nanoparticles (CuO NPs) were prepared with a green synthesis route without using hazardous chemicals. Hence, the extracts of mint leaves and orange peels were utilized as reducing agents to synthesize CuO NPs-1 and CuO NPs-2, respectively. The synthesized CuO NPs nanoparticles were characterized using scanning electron microscopy (SEM), Energy Dispersive X-ray Analysis (EDX), BET surface area, Ultraviolet–Visible spectroscopy (UV–Vis), and Fourier Transform Infrared Spectroscopy (FT-IR). Various parameters of batch experiments were considered for the removal of Pb(II), Ni(II), and Cd(II) using the CuO NPs such as nanosorbent dose, contact time, pH, and initial metal concentration. The maximum uptake capacity (qm) of both CuO NPs-1 and CuO NPs-2 followed the order of Pb(II) > Ni(II) > Cd(II). The optimum qm of CuO NPs were 88.80, 54.90, and 15.60 mg g−1 for Pb(II), Ni(II), and Cd(II), respectively and occurred at sorbent dose of 0.33 g L−1 and pH of 6. Furthermore, isotherm and kinetic models were applied to fit the experimental data. Freundlich models (R2 > 0.97) and pseudo-second-order model (R2 > 0.96) were fitted well to the experimental data and the equilibrium of metal adsorption occurred within 60 min.

scholarly journals Urban waste no replacement for natural foods—Marabou storks in Botswana

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
R J Francis ◽  
R T Kingsford ◽  
M Murray-Hudson ◽  
K J Brandis
Keyword(s):  
Inductively Coupled Plasma ◽  
Trophic Niche ◽  
Long Term Effects ◽  
Natural Areas ◽  
Urban Waste ◽  
Inductively Coupled ◽  
Plasma Mass Spectrometry ◽  
Natural Foods ◽  
Lead Nickel ◽  
Marabou Stork

Abstract We compared diets of marabou storks Leptoptilos crumenifer foraging from urban landfills and natural areas in northern Botswana using stable isotope analyses and inductively coupled plasma mass spectrometry on moulted feathers. There were significant differences in the diet of marabous foraging from natural areas compared to urban waste sites, reflected by lower δ13C and less enriched δ15N concentrations in those feeding at landfills, suggesting a shift in trophic niche. Feathers from birds foraging at landfills also had significantly higher concentrations of chromium, lead, nickel, and zinc and lower levels of cadmium and potassium than feathers sampled from natural areas. We also analysed marabou regurgitant (42 kg, naturally expelled indigestible food resources) from the Kasane landfill site. More than half was plastic, with single regurgitants weighing up to 125 g. Urban waste stored in open air landfills is altering some marabou diets, affecting their natural trophic niche, resulting in the consumption (and regurgitation) of large amounts of plastic, and exposing marabou to potentially chronic levels of trace metals. Despite the marabou’s apparent resilience to this behavioural shift, it could have long-term effects on the population of the marabou stork, particularly considering Botswana has some of the few regular marabou breeding colonies in southern Africa.

scholarly journals Evaluation of cadmium, lead, nickel and zinc status in biological samples of smokers and nonsmokers hypertensive patients

2009 ◽  
Vol 24 (1) ◽  
pp. 34-43 ◽  
Author(s):  
H I Afridi ◽  
T G Kazi ◽  
N G Kazi ◽  
M K Jamali ◽  
M B Arain ◽  
...  
Keyword(s):  
Biological Samples ◽  
Zinc Status ◽  
Hypertensive Patients ◽  
Cadmium Lead ◽  
Lead Nickel

Phase Evolution and Dielectric Characterization of Lead Nickel Niobate–lead Zirconate Ceramics Prepared from the Hydrothermally Derived Precursors

1999 ◽  
Vol 14 (4) ◽  
pp. 1364-1370 ◽  
Author(s):  
Chung-Hsin Lu ◽  
Wen-Jeng Hwang
Keyword(s):  
Dielectric Response ◽  
Pyrochlore Phase ◽  
Phase Evolution ◽  
Intermediate Compound ◽  
Lead Zirconate ◽  
Relaxor Ferroelectrics ◽  
Dielectric Characterization ◽  
Lead Nickel ◽  
Rich Side

The perovskite compounds with the composition of (1 – x) Pb(Ni1/3Nb2/3)O3 –xPbZrO3 have been successfully prepared from hydrothermally treated precursors. During calcination, the primary intermediate compound is pyrochlore phase in the Pb(Ni1/3Nb2/3)O3-rich composition, while it is PbZrO3 on the PbZrO3-rich side. On calcination at 800 °C, all precursors convert into perovskite phases. In the formed solid solutions, increasing PbZrO3 content results in a rise in the apparent Curie temperature as well as the maximum dielectric permittivity. The Pb(Ni1/3Nb2/3)O3-rich perovskites (x < 0.8) possess the characteristics of relaxor ferroelectrics. With increasing PbZrO3 content, the dielectric response gradually becomes less diffuse and dispersive, reflecting a reduction in the relaxor characteristics of the formed perovskites.

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