The effect of hydrogen peroxide (H2O2) concentrations on the degradation of hexachloroethane (HCA) in the absence and the presence of tetrachloroethene (PCE) by Fenton's reagent was investigated at pH 3 with 1 mM iron(II) and H2O2 concentrations ranging from 0.01 M to 2 M. HCA degradation in the absence of PCE increased with increasing H2O2 concentration between 0.2 M and 2 M. In the presence of PCE, HCA degradation was similar to that in the absence of PCE for H2O2 concentration up to 1 M, but significantly higher for 2 M H2O2. We propose that this increase is a result of elevated reductant radicals when PCE is present. This study highlights the need for further investigation into the degradation of contaminant mixtures at higher H2O2 concentrations.
Research Article|December 01 2008
Degradation of hexachloroethane by Fenton's reagents
E. H. Jho
E. H. Jho
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Water Sci Technol (2008) 58 (11): 2211-2214.
E. H. Jho, N. Singhal, S. Turner; Degradation of hexachloroethane by Fenton's reagents. Water Sci Technol 1 December 2008; 58 (11): 2211–2214. doi: https://doi.org/10.2166/wst.2008.576
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