Results 261 to 270 of about 920,646 (300)

Decommissioning of a selected heap leach dump

International Journal of Surface Mining, Reclamation and Environment, 1996
ABSTRACT Cyanidation heap leaching is a prevalent low-cost method to extract gold from low-grade ores in the western United States. Relatively little is known about the geochemical processes which occur when a spent heap leach dump is rinsed to reduce the levels of potentially toxic constituents, however. Given that many heap leach dumps will be rinsed
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Selective leaching of chromium-containing slag by HCl

Journal of Central South University of Technology, 2008
A batch of column experiments was carried out to investigate the change of Cr(Ⅵ) concentration leached out from chromium-containing slag with HCl as leaching agent, and to study influences of pH, ratio of solid mass to solution volume, flow velocity and temperature on Cr(Ⅵ) leaching. The optimal parameters were obtained for Cr(Ⅵ) leaching and a fitting
Zhi-hui Yang, Li-yuan Chai, Yun-yan Wang, Kun Zhao, Yu-de Shu   +4 more
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Selection criteria of xenobiotic leaching models in soil

European Journal of Agronomy, 1995
Selection criteria of xenobiotic dissipation models in soil are discussed. Model potentialities and user requirements are diverse ; it is paramount to evaluate each model in view of its application. Three main topics are evaluated : user/programme interactions, model purposes, and real world/model relationships. 1) A programme (or a paper-written model)
A.A.M. Del Re, M. Trevisan
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Selective leaching or selective corrosion

2023
Chaudhery Mustansar Hussain, Chandrabhan Verma, Jeenat Aslam, Ruby Aslam, Saman Zehra   +4 more
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Stable cluster head selection in LEACH protocol

Proceedings of the 7th ACM India Computing Conference, 2014
Optimal cluster head count plays a key role in determining the efficiency of a cluster based routing protocol. If the cluster head count will be more than the optimal value, aggregation advantage cannot be taken fully. If clusters are less, then there will be more aggregation load on the cluster head and communication load on the cluster members as ...
Payal Khurana Batra, Krishna Kant 0003
openaire   +2 more sources

Selective uranium oxidation during in situ leaching

Mining, Metallurgy & Exploration, 1992
O2, NaClO3, H2O2, NaOCl and Ce+4 have been examined as oxidants in an alkaline carbonate system for uranium in situ leaching. The South Texas and New Mexico ores contained up to 2.6 meq/g of reducing compounds that consume oxidants in the leaching operation. Leaching rates did not increase linearly with the oxidation potential of the oxidants.
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Leaching and Degradation of Selected Pesticides in a Sandy Watershed

1998
Dansk serietitel: Bekæmpelsesmiddelforskning fra Miljøstyrelsen.
Jacobsen, O.S., Brüsch, W., Fomsgaard, Inge S.; id_orcid 0000-0003-4987-8511, Helweg, Arne, Vinther, F.P., Spliid, Niels Henrik, Bossi, R., Mogensen, B.B.   +7 more
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Leach testing for pre-selection of waste to be landfilled [PDF]

, 2014
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Zomeren, A. van, Scharff, H., Dijkstra, J.J., Meeussen, J.C.L., Sloot, H.A. van der, comans, R.N.J.   +5 more
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Selective Leaching of Extruded Cordierite Honeycomb Structures

2008
Influence de la lixiviation sur la dilatation thermique et la resistance aux chocs ...
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SELECTIVE LEACHING

2023
KLAASEN BART, DENISSEN JOS
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