Oxidation of metal-diethylenetriaminepentaacetate (DTPA)--complexes during drinking water ozonation.

@article{Stemmler2001OxidationOM,
  title={Oxidation of metal-diethylenetriaminepentaacetate (DTPA)--complexes during drinking water ozonation.},
  author={Konrad Stemmler and G D Glod and Urs von Gunten},
  journal={Water research},
  year={2001},
  volume={35 8},
  pages={1877-86}
}
This study investigates the oxidative transformation of diethylenetriaminepentaacetate (DTPA), a synthetic ligand, during drinking water ozonation. The rate coefficients for the reactions of CaDTPA3- and ZnDTPA3- with ozone were determined to be 6200 and 3500 +/- 150 M-1 s-1, respectively. The reactivity of Fe(III)DTPA2- towards ozone was found to be much lower (< 10 M-1 s-1), but near neutral pH the reactivity of the Fe(III)-complexes is dominated by [Fe(III)(OH)]DTPA3-. For the reaction of Fe… CONTINUE READING

References

Publications referenced by this paper.
Showing 1-10 of 21 references

Ozonation of ethylenediaminetetraacetic acid (EDTA) in aqueous solution, influence of pH value and metal ions

  • E. Gilbert, S. Hoffmann-Glewe
  • Water Res
  • 1990
Highly Influential
6 Excerpts

Determination of ozone in water by the indigo method

  • H. Bader, J. Hoigné
  • Water Res
  • 1981
Highly Influential
4 Excerpts

Chemistry of aqueous Ozone and transformation of pollutants by ozonation and advanced ozonation

  • J. Hoigné
  • InHandbook of Environmental Chemistry,
  • 1998
Highly Influential
3 Excerpts

Potentiometric study of the equlibria between triethylenetetraminehexaacetic acid and H(I), Mn(II), La(III) and Ga(III) in aqueous solution

  • G. Anderegg, P. Nägeli, F. Müller, G. Schwarzenbach
  • Anal. Chim. Acta
  • 1998
Highly Influential
2 Excerpts

Hydroxyl radicals/ozone ratios during ozonation processes. II. The effect of temperature, pH, alkalinity, and DOM property

  • M S.Elovitz, U. von Gunten, H P.Kaiser
  • Ozone Sci. Engng
  • 2000

Hydroxyl radicals / ozone ratios during ozonation processes . I . The R ct concept

  • S. ElovitzM., U. vonGunten, P. KaiserH.
  • Ozone Sci . En g n g .
  • 1999

Hydroxyl radicals/ ozone ratios during ozonation processes. I

  • M S.Elovitz, U. von Gunten
  • The Rct concept. Ozone Sci. Engng
  • 1999

Degradation of DTPA

  • T A.Ternes, K. Stolte, K. Haberer
  • 1997

Degradation of DTPA by UV / H 2 O 2 during drinking water treatment processes

  • H. Xue, L. Sigg, G. KariF.
  • Vom Wasser
  • 1997

Behaviour of EDTA in groundwater, a study of the surface reactions of metal–EDTA complexes

  • B. Nowack
  • Dissertation ETH Zürich Nr.11392
  • 1996
3 Excerpts

Similar Papers

Loading similar papers…