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| http://dx.doi.org/10.1007/s11606-024-08844-1 | DOI Listing |
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First full-scale application of barium carbonate as an effective dispersed alkaline substrate for sulfate removal from acid mine drainage.
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Earth Sciences Department, Research Center on Natural Resources, Health and the Environment (RENSMA), University of Huelva, Campus El Carmen, 21071 Huelva, Spain.
Article Synopsis
- * Over a 105-day monitoring period, the plant processed highly contaminated water with a significant sulfate concentration and produced an alkaline outflow with low metal content.
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Incorporation of palladium into pyrite: Insights from X-ray absorption spectroscopy analysis and modelling.
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The XMaS Beamline CRG c/o European Synchrotron Radiation Facility (ESRF), 71 avenue des Martyrs, 38000 Grenoble, France; Department of Physics, University of Liverpool, Oliver Lodge Laboratory, Liverpool L69 7ZE, UK.
Pyrite (FeS) often accommodates elevated concentrations of platinum-group elements in ores of magmatic and hydrothermal origin. In order to elucidate the role of pyrite in concentrating Pd, Pd-doped synthetic crystals were studied via X-ray absorption spectroscopy (XAS). Crystals were obtained by salt-flux method in the system saturated with respect to Pd at the temperature of 580 °C and sulphur fugacity of log f (S) = -0.
View Article and Find Full Text PDFCyanide removal of gold cyanide residues by manganese compounds as new decyanation reagents.
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Key Laboratory for Ecological Metallurgy of Multimetallic Mineral (Ministry of Education), Northeastern University, Shenyang 110819, Liaoning, China; School of Metallurgy, Northeastern University, Shenyang 110819, China.
Plenty of the toxic gold cyanide residues are produced by cyanidation process of gold extraction. As a kind of hazardous solid wastes, cyanide residues must be treated to remove cyanide before disposal. In this study, the removal of cyanide in gold cyanide residues by manganese compounds (KMnO and MnO) was investigated.
View Article and Find Full Text PDFCoal balls, in which fossil plants are preserved in permineralized peat deposits, have widely been described from coal deposits representing the tropical forest of the Carboniferous. Coal ball preparation techniques have evolved over the past century, with the cellulose acetate peel method becoming the standard in the 1950s. While coal ball research is not as active as it has been in the past, large collections of coal balls and their respective peels still form a large part of many museum and university collections.
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