Visible Light Accelerates Cr(III) Release and Oxidation in Cr–Fe Chromite Residues: An Overlooked Risk of Cr(VI) Reoccurrence

The reduced chromite ore processing residue (rCOPR) deposited in environments is susceptible to surrounding factors and causes reoccurrence of Cr(VI). However, the impact of natural sunlight on the stability of rCOPR is still unexplored. Herein, we investigated the dissolution and transformation be...

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Veröffentlicht in:	Environmental science & technology 2022-12, Vol.56 (24), p.17674-17683
Hauptverfasser:	Lei, Dashi, Gou, Chunli, Wang, Chunli, Xue, Juanqin, Zhang, Zhongshen, Liu, Weizhen, Lin, Zhang, Zhang, Jing
Format:	Artikel
Sprache:	eng
Schlagworte:	Charge transfer Chromite Chromium Chromium - chemistry Contaminants in Aquatic and Terrestrial Environments Density functional theory Environmental risk Ferric Compounds - chemistry Hydrogen-Ion Concentration Iron Light Manganese Compounds Manganese dioxide Oxidation Oxidation rate Oxidation-Reduction Oxides pH effects Photooxidation Reactive oxygen species Residues Trivalent chromium X ray absorption
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