Long-term effect of nitrate on Cr(VI) removal by Fe<sup>0</sup>: column studies
作者: Minghai WeiFang YuanGuoxin HuangHonghan ChenFei Liu
作者单位: 1China University of Geosciences (Beijing)
2Beijing Z. D. H. K. Environmental Science and Technology Co., Ltd
3China Meat Research Center
刊名: Environmental Science and Pollution Research, 2016, Vol.23 (9), pp.8589-8597
来源数据库: Springer Nature Journal
DOI: 10.1007/s11356-016-6102-x
关键词: Scrap iron (Fe0)Nitrate (NO3)Hexavalent chromium (Cr(VI))Long-term effectMagnetite (Fe3O4)Column studies
英文摘要: Abstract(#br)Lab-scale parallel continuous-flow column experiments were performed to assess the long-term effect of nitrate (NO3) on hexavalent chromium (Cr(VI)) removal by scrap iron (Fe0). The first column (L1) was fed with the Cr(VI) solution and the second column (L2) was loaded with the Cr(VI) + NO3 solution. Raman spectroscopy and scanning electron microscopy energy-dispersive X-ray analyses (SEM-EDS) were conducted to investigate the changes of the iron oxides on Fe0. The results showed that the process of Cr(VI) removal by Fe0 was divided into three different stages in the presence of NO3: inhibition period (<198 pore volumes (PVs)); promotion period (198∼1025 PVs); and complete...
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影响因子:2.618 (2012)

  • 吃晚饭 Vectored Interrupt
  • nitrate 硝酸盐
  • VI Vectored Interrupt
  • sup Vectored Interrupt
  • removal 消去
  • effect 效应