XANES evidence for rapid arsenic(III) oxidation at magnetite and ferrihydrite surfaces by dissolved O(2) via Fe(2+)-mediated reactions.

@article{OnaNguema2010XANESEF,
  title={XANES evidence for rapid arsenic(III) oxidation at magnetite and ferrihydrite surfaces by dissolved O(2) via Fe(2+)-mediated reactions.},
  author={Georges Ona-Nguema and Guillaume Morin and Yuheng Wang and Andrea Lara Foster and Farid Juillot and Georges Calas and Gordon E. Brown},
  journal={Environmental science & technology},
  year={2010},
  volume={44 14},
  pages={
          5416-22
        }
}
To reduce the adverse effects of arsenic on humans, various technologies are used to remove arsenic from groundwater, most relying on As adsorption on Fe-(oxyhydr)oxides and concomitant oxidation of As(III) by dissolved O(2). This reaction can be catalyzed by microbial activity or by strongly oxidizing radical species known to form upon oxidation of Fe(II) by dissolved O(2). Such catalyzed oxidation reactions have been invoked to explain the enhanced kinetics of As(III) oxidation in aerated… CONTINUE READING
BETA

Figures and Topics from this paper.

Explore Further: Topics Discussed in This Paper

Citations

Publications citing this paper.
SHOWING 1-10 OF 47 CITATIONS

References

Publications referenced by this paper.
SHOWING 1-10 OF 53 REFERENCES

Similar Papers

Loading similar papers…