Leaching of hexavalent chromium from young chromite ore processing residue.
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DOI: 10.1002/jeq2.20071
Abstract: Chromite ore processing residue (COPR) is a waste derived from the chromate extraction from roasted ores and is deposited in some countries in landfills. The objective of this study was to investigate the leaching characteristics… read more here.
Keywords: copr; ore processing; chromite ore; processing residue ... See more keywords
Reduction/immobilization of chromite ore processing residue using composite materials based geopolymer coupled with zero-valent iron
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DOI: 10.1016/j.ceramint.2017.11.148
Abstract: Abstract Chromite ore processing residue (COPR) is a hazardous waste due to the presence of highly mobile Cr(VI). In this paper, the reduction/immobilization of COPR using composite materials (fly ash, blast furnace slag and metakaolin)… read more here.
Keywords: reduction; copr; immobilization; ore processing ... See more keywords
Detoxification and immobilization of chromite ore processing residue using the alkali-activated cementitious materials mixed with ascorbic acid.
Sign Up to like & getrecommendations! Published in 2020 at "Journal of environmental management"
DOI: 10.1016/j.jenvman.2020.110350
Abstract: The existence of leachable Cr(Ⅵ) in chromite ore processing residue (COPR) makes it hazardous waste. Therefore, resourceful utilization of COPR is necessary to protect the ecosystem and living biota from hazardous effect of Cr(Ⅵ) caused… read more here.
Keywords: copr; ore processing; detoxification immobilization; ascorbic acid ... See more keywords