Nan- zerovalent iron (nZVI) initiates Fenton reaction in oxygenated waters, which produces various radicals to efficiently degrade a range of contaminants. However, the degradation of organic micropollutants (e.g. hormones) by this reaction is not well documented in literature. We investigate the effect of pH on oxidation of 17a-Ethinylestradiol (EE2) by nZVI via heterogeneous Fenton reaction. Batch experiments were conducted at different pH using oxygenated solution. The concentrations of Fe(II), Fe(III), HO�, and intermediates of EE2 degradation were determined. Solution pH affected the production of H2O2, Fe(II), Fe(III), and HO�. These changes affected the rate of EE2 degradation as well as the specific daughter products formed. In addition, these conditions led to formation of various iron oxides on the nZVI surface. We explore these interactions with the intention of explaining the reasons for observed changes in EE2 degradation.

Removal of 17a-Ethinylestradiol by heterogenous Fenton reaction using nano-zerovalent iron

248th National Meeting (2014)

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