Results 221 to 230 of about 40,768 (262)

Increased recovery through deposit on heavy metal batteries

Waste Management & Research, 1983
The advantages of a deposit system to expedite the collection of batteries containing mercury and cadmium are explored against the background of the Swedish environmental protection system. Voluntary collection of used batteries at major points of sale accompanied by vigorous advertising and propaganda campaigns can achieve about 30-40% returns.
M. Backman, K. Lidgren
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Leaching heavy metal from deposits of heavy metals with bacteria oxidizing elemental sulphur

Journal of Water Chemistry and Technology, 2015
Experiments were carried out on bacterial leaching heavy metals from aerobically stabilize excessive activated silt of Bortnichi Aeration Station of Kiev when adding elementary sulphur as a stimulant of the activity of acidophilic thiobacilli. It has been shown that a decrease of silt pH in the course of the process is a decisive factor of efficiency ...
A. M. Marchenko, G. N. Pshinko, V. Ya. Demchenko, V. V. Goncharuk   +3 more
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Dry deposition characteristics of heavy metals in Europe

Toxicological & Environmental Chemistry, 2001
Dry atmospheric deposition of heavy metals Cd, Cu, Cr, Mn, Ni, Pb and Zn have been analysed at different sites in Europe to identify seasonal variations and statistical characteristics in the period 1995–1996. Clear seasonal variations of Cd, Mn, Pb and Zn levels between winter and summer were observed.
N. Lavín, E. Marín
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Acid and heavy metal pollution by wet deposition

Science of The Total Environment, 1986
Abstract Wet deposition of acid and of ecotoxic heavy metals Cd, Pb, Cu and Zn by rain and snow in the F.R.G. was followed during the semidecade 1980 – 84 to establish the long term trends and to study regional and local situations. The free acid in rain and snow is rather uniformly distributed over the whole area as a result of mesoscalic transport ...
P. Valenta, V.D. Nguyen, H.W. Nornberg
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Atmospheric heavy metal deposition in the Copenhagen area

Environmental Pollution (1970), 1978
Abstract Atmospheric dry and wet deposition (bulk precipitation) of the heavy metals Cu, Pb, Zn, Ni, V and Fe over the Copenhagen area was measured by sampling in plastic funnels from 17 stations during a twelve-month period. Epigeic bryophytes from 100 stations in the area were analysed for the heavy metals Cu, Pb, Cd, Zn, Ni, V, Cr and Fe.
Andersen, Allan, Hovmand, Mads Frederik, Johnsen, Ib   +2 more
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Atmospheric deposition of heavy metals in central Ontario

Water, Air, and Soil Pollution, 1981
As part of a study to determine the magnitude of atmospheric inputs of materials into the lakes of central Ontario, a four-station network of bulk deposition and wet-only precipitation samplers was established in the Muskoka-Haliburton and Sudbury regions to determine the deposition (mg m2− yr−1) and volume weighted concentration (μg 1−1) of Ph, Cu, Ni,
Dean S. Jeffries, Warren R. Snyder
openaire   +1 more source

Deposition of sulfate and heavy metals on the Kola Peninsula

Science of The Total Environment, 1995
Snowpack samples were collected at 20 sites on the Kola Peninsula, Russia, in April 1991. Samples were collected both in remote regions and in areas impacted by nearby emission sources, including the Severonikel CuNi smelter in the city of Monchegorsk.
Dan Jaffe, Bianca Cerundolo, Janet Rickers, Richard Stolzberg, Alexander Baklanov   +4 more
openaire   +1 more source

Heavy metals in atmospheric surrogate dry deposition

Chemosphere, 1999
This paper describes a methodological approach for the assessment of the amount of surrogate dry deposition of several toxic heavy metals (Cd, Cr, Cu, Ni, Pb, V, Zn) associated with atmospheric particulate matter at ground level. The objectives of the study were twofold: i) the evaluation of several techniques for the digestion of dry deposition ...
, Morselli, , Cecchini, , Grandi, , Iannuccilli, , Barilli, , Olivieri   +5 more
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A Technique for Determining the Deposition of Heavy Metals in Pesticides

Phytopathology, 1985
Description d'une technique rapide basee sur le dosage des depots de metaux lourds par analyse minerale dans le but de mesurer les depots de pesticides et d'elements mineraux (oligoelements) sur les feuilles de ...
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Deposition of heavy metals in a Mediterranean climate area

Atmospheric Research, 2006
Abstract Deposition samples were collected and analyzed for selected heavy metals in Izmir, Turkey on different days in October 2003–June 2004. A water surface sampler was used to collect dry deposition and rainwater samples to represent the wet deposition during the rainy period of the year.
Cizmecioglu, Sibel Cukurluoglu, Muezzinoglu, Aysen   +1 more
openaire   +2 more sources