Chromium Speciation in the Size-Fractions of a Soil Polluted by Weathered Chromate Ore Process Residue Using Synchrotron X-ray Analysis.

作者: Haibo Zhang , Bianying Zhou , Jingfen Ren , Lei Zhang , Yongming Luo

DOI: 10.1007/S00128-018-2399-0

关键词:

摘要: The chromate ore process residues (COPR) polluted soil was physically separated into coarse sand (2.000-0.425 mm), fine (0.425-0.053 mm) and silt to clay (< 0.053 mm) fractions. Cr speciation characterized by synchrotron based micro X-ray fluorescence (µ-XRF) absorption near-edge spectra (µ-XANES). results indicated that bearing both in COPR parent minerals hydrated products dominated Cr(III) three size-fractions. chromite, organic matter bound particle adsorbed Cr3+ the selected hotspots from sand, sized fraction, respectively. While Cr(VI) occurred form of CrO42- size difference species size-fractions suggested higher edaphic effects than size-fraction for weathered COPR.

参考文章(23)
D. Dermatas, C. Christodoulatos, D. H. Moon, M. Marcus, S. Fakra, M. Chrysochoou, USE OF MICRO X-RAY ABSORPTION SPECTROSCOPY AND DIFFRACTION TO DELINEATE Cr(VI) SPECIATION IN COPR Global Nest Journal. ,vol. 11, ,(2010)
D Dermatas, R Bonaparte, M Chrysochoou, DH Moon, Chromite Ore Processing Residue (COPR): Hazardous Contaminated Soil or Solid Waste? Journal of Astm International. ,vol. 3, pp. 13313- ,(2006) , 10.1520/JAI13313
Deok Hyun Moon, Dimitris Dermatas, Mahmoud Wazne, Adriana M. Sanchez, Maria Chrysochoou, Dennis G. Grubb, Swelling related to ettringite crystal formation in chromite ore processing residue Environmental Geochemistry and Health. ,vol. 29, pp. 289- 294 ,(2007) , 10.1007/S10653-007-9097-X
Markus Gräfe, Erica Donner, Richard N. Collins, Enzo Lombi, Speciation of metal(loid)s in environmental samples by X-ray absorption spectroscopy: a critical review. Analytica Chimica Acta. ,vol. 822, pp. 1- 22 ,(2014) , 10.1016/J.ACA.2014.02.044
Maria Chrysochoou, Dimitris Dermatas, Dennis G. Grubb, Deok Hyun Moon, Christos Christodoulatos, Importance of Mineralogy in the Geoenvironmental Characterization and Treatment of Chromite Ore Processing Residue Journal of Geotechnical and Geoenvironmental Engineering. ,vol. 136, pp. 510- 521 ,(2010) , 10.1061/(ASCE)GT.1943-5606.0000233
S. Hillier, D. G. Lumsdon, R. Brydson, E. Paterson, Hydrogarnet: a host phase for Cr(VI) in chromite ore processing residue (COPR) and other high pH wastes. Environmental Science & Technology. ,vol. 41, pp. 1921- 1927 ,(2007) , 10.1021/ES0621997
Haitao Xu, Tianjun Lou, Yadong Li, Synthesis and characterize of trivalent chromium Cr(OH) 3 and Cr 2 O 3 microspheres Inorganic Chemistry Communications. ,vol. 7, pp. 666- 668 ,(2004) , 10.1016/J.INOCHE.2004.03.012