Kinetic Modeling of Cr(VI) Reduction by nZVI in Soil: The Influence of Organic Matter and Manganese Oxide
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.
KeywordsnZVI Cr(VI) NOM Manganese oxide Kinetic-modeling
This research has been funded by Sapienza Università di Roma, Progetti AWARDS di Università Anno 2015 – Grant n. C26H15L9JS.
- Italian Environmental Regulation (2006) Legislative Decree 152/2006Google Scholar