Results 261 to 270 of about 5,568,677 (301)

The application of neutron activation analysis to leach rate studies

Nuclear and Chemical Waste Management, 1981
The applicability of neutron activation analysis to the determination of element release from simulated nuclear waste forms during leaching is described for three different glasses. Potential neutron irradiation effects are discussed and shown, through a series of leach tests on activated and nonactivated glass samples, to have no discernible effect on
J.K. Bates, L.J. Jardine, K.F. Flynn, M.J. Steindler   +3 more
openaire   +1 more source

Minimal Extractant Flow Rate in Countercurrent Leaching

Theoretical Foundations of Chemical Engineering, 2005
Approaches to determining the minimal extractant flow rate in countercurrent leaching are considered.
openaire   +1 more source

Modified approach to trigg and leach's adaptive response rate model

Computers & Operations Research, 1979
Abstract Trigg and Leach's model is simple to implement in an industrial environment and has been found to be well suited for producing routine short-term forecasts of a large number of items. In this paper two modifications to Trigg and Leach's model are proposed with a view to improving its performance under a variety of demand situations. Both the
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Fertigation rate, leaching fraction, and growth of potted poinsettia

Journal of Plant Nutrition, 1996
Single-pinched poinsettia (Euphorbia pulcherrima 'V-14 Glory') in 15-cm pots received constant fertigation with 50, 100, 200, and 300 mg.L -1 nitrogen (N) from a 20N-4.4 phosphorus (P)-16.6 potassium (K) fertilizer with a leaching fraction (LF) of 0, 0.2, or 0.4. Plants received 25 irrigations during the 13-week study.
Catherine S. M. Ku, David R. Hershey
openaire   +1 more source

Determination of leaching rates of precious metals by electrochemical techniques

Journal of Applied Electrochemistry, 1991
The leaching rates of gold, silver, palladium and platinum in cyanide solutions have been determined from the corrosion potential and voltammograms of the anodic oxidation reaction. The order of reactivity was Au>Ag>Pd>Pt and the leaching rate was a maximum at about pH 10 for each metal. An assessment was made of the applicability of PAR M342C Softcorr
R. Dorin, R. Woods
openaire   +1 more source

Impact of Cooling Rate on the Mineralogy and Leaching Behaviour of Copper Slag

Avoiding and minimizing the leaching of heavy elements from non-ferrous metal slags is a precondition for their effective valorisation, where minimum requirements are regulated by standards and legislation of different local regions. Whilst most laboratory-scale studies on slag leaching have focused on factors such as slag bulk composition and solution
Chen, Jeff, Jak, Evgueni
openaire   +3 more sources

Leaching rates of heavy metal ions in forest soil

Water, Air, and Soil Pollution, 1978
The leachability of Mn, Zn, Cd, Ni, V, Cu, Cr, and Pb was studied in two purely organic spruce forest soils: one control soil and one similar soil heavily polluted by Cu and Zn from a brass foundry in southern Sweden. Artificial rainwater, acidified to pH 4.2, 3.2, and 2.8 was used in the experiment.
openaire   +1 more source

Influence of leaching rates on 14C-metolachlor mobility

Bulletin of Environmental Contamination and Toxicology, 1995
M J, Sánchez-Martín, T, Crisanto, L F, Lorenzo, M, Arienzo, M, Sánchez-Camazano   +4 more
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EFFECT OF WATER APPLICATION RATE ON LEACHING

Soil Science, 1966
JACK KELLER, JOSE F. ALFARO
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Leaching rate dependence on productive solution temperature

Vestnik KazNRTU, 2020
S. G. Onika, K.B. Rysbekov, E.Kh. Aben, G.B. Bahmagambetova   +3 more
openaire   +1 more source