Chromium speciation in mildly heated Cr(VI)-doped latosol soil

Yu Ling Wei, Hui Fang Hsieh, Yen Shiun Peng, Kai Wen Chen, Chang Yuan Lin, H. Paul Wang

研究成果: Article同行評審

2 引文 斯高帕斯(Scopus)

摘要

Cr(VI) chemical reduction in natural organic matter (NOM)-bearing latosol soil was investigated under various heating conditions at≤378 K. An enhanced Cr(VI) reduction rate has been observed for the reaction at 353-378 K. The effect of Fe(II) naturally occurring in the latosol soil on Cr(VI) chemical reduction is negligible compared with the effect of NOM. Cr(OH)3 was quantitatively specified by X-ray absorption spectroscopy to be the key chromium species (∼80%) after ∼90% of Cr(VI) was chemically reduced by NOM at 353-378 K. This study indicates a potential strategy for using the heat extracted from industrial flue gas with a heat exchanger to chemically reduce Cr(VI) in NOM-bearing or organics-amended soils that contain Cr(VI).

原文English
頁(從 - 到)173-178
頁數6
期刊Journal of Synchrotron Radiation
17
發行號2
DOIs
出版狀態Published - 2010 3月 1

All Science Journal Classification (ASJC) codes

  • 輻射
  • 核能與高能物理
  • 儀器

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