Wyniki wyszukiwania - BazTech

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Oznaczenie stężeń miedzi i ołowiu w eluatach uzyskanych z odpadu hutniczego za pomocą podstawowego i kolumnowego testu wymywania

Mizerna K.

Zeszyty Naukowe. Inżynieria Środowiska / Politechnika Opolska

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2016

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nr 359, z. 9

47--50

EN

The paper presents the results of copper and lead leaching from smelter slag obtained by testing using the column and basic (compliance) leaching tests. Concentrations of heavy metals are presented as a function of L/S ratio. Higher leaching of copper and lead in eluates in the basic test was determined.

2

Release of heavy metals from waste into leachate in active solid waste landfill

Talalaj I. A.

Environment Protection Engineering

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2015

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Vol. 41, nr 1

83--93

EN

Mass balance of selected heavy metals (Cu, Cr, Pb, Hg, Zn, Cd) released from waste into leachate during 8 years of landfill exploitation has been calculated. The average release of all analyzed heavy metals did not exceed 1.7%. Heavy metals released in the largest quantities were Cr (0.025 –1.685%), Hg (0.033–1.540%) and Cd (0.082–0.701%). Release of Pb, Cu, Zn was 0.008–0.152%; 0.012–0.085% and 0.007–0.152%, respectively. Cr and Hg do not form an insoluble sulfide precipitate and that is why they are released in a larger amount. Cd and Pb concentrations are positively correlated with the amount of the atmospheric precipitation and the amount of leachates, which means that infiltrating rainfall can leach out these metals from waste. Favorable conditions for leaching of these metals are probably a result of their precipitation as carbonates. A strong correlation between Cu, Zn, and Cr indicates they do not precipitate as carbonates and further they can be subject to desorption processes. In the case of Cu, Zn, Cr and Hg, a positive correlation with the amount of deposited waste was also observed.

3

Elevated lead concentration in skeletons of diurnal birds of prey Falconiformes and owls Strigiformes from Eastern Poland - ecological approach and review

Komosa A., Kitowski I.

Ecological Chemistry and Engineering. S

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2008

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Vol. 15, nr 3

349-358

EN

Lead concentration levels in skeletons of 57 individuals of 15 species of diurnal birds of prey and owls have been determined. The greatest mean concentration of lead in skeletons was exhibited by the Great Spotted Eagle Aquila clanga: 44.8 mg/kg (d.m.). In 23 individuals from 11 species the concentration of lead was determined at >10 mg/kg, which indicates elevated and potentially toxic, long-term exposure to lead over the lifetime of the bird. The highest percentage of individuals with lead levels of >10 mg/kg was established for: Great Spotted Eagle, Eurasian Buzzard Buteo buteo, Eurasian Marsh Harrier Circus aeruginosus and Rough-legged Buzzards Buteo lagopus. Raptors, who often use game animals as food resources show the highest determined lead concentration levels.

PL

Zbadano poziomy stężeń ołowiu w szkieletach 57 osobników z 15 gatunków ptaków szponiastych i sów. Największe średnie stężenie ołowiu stwierdzono w kościach orlika grubodziobego Aquila clanga: 44,8 mg/kg (s.m.). W 23 osobnikach pochodzących z 11 gatunków stężenia ołowiu określono jako >10 mg/kg, co wskazuje na występowanie- podwyższonego, potencjalnie toksycznego długotrwałego narażenia na ołów. Największy procent osobników przekraczających ten poziom skażenia ołowiem (>10 mg/kg) stwierdzono w przypadku orlika grubodziobego Aquila clanga, myszołowa Buteo buteo, błotniaka stawowego Circus aeruginosus i myszołowa włochatego Buteo lagopus. Drapieżniki, wykorzystujące zwierzynę łowną jako źródło pokarmu, wykazywały największe poziomy stężeń ołowiu w kościach.