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Kinetic Modeling of Cr(VI) Reduction by nZVI in Soil: The Influence of Organic Matter and Manganese Oxide

  • Luca Di Palma
  • Nicola Verdone
  • Giorgio Vilardi
Article

Abstract

The effect of soil composition on the reduction of hexavalent chromium (Cr(VI)) by zero valent iron nanoparticles was studied. A model was proposed, to investigate both the effect of manganese oxide and the simultaneous effect of manganese dioxide and soil organic matter on the kinetic of Cr(VI) reduction. Fe(0) nanoparticles consumption by the reaction with dissolved oxygen, water and soluble Cr(VI) was taken into account. The model was validated through experimental tests performed on soil samples collected at an industrial polluted site, and on artificially contaminated samples from the same site, in the presence of selected amount of leonardite.

Keywords

nZVI Cr(VI) NOM Manganese oxide Kinetic-modeling 

Notes

Acknowledgements

This research has been funded by Sapienza Università di Roma, Progetti AWARDS di Università Anno 2015 – Grant n. C26H15L9JS.

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of Chemical Engineering Materials EnvironmentSapienza University of RomeRomeItaly

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