Print Email Facebook Twitter Fenton Redox Chemistry: Arsenite Oxidation by Metallic Surfaces Title Fenton Redox Chemistry: Arsenite Oxidation by Metallic Surfaces Author Borges Freitas, S.C. Van Halem, D. Badruzzaman, A.B.M. Van der Meer, W.G.J. Faculty Civil Engineering and Geosciences Department Water Management Date 2014-09-21 Abstract Pre-oxidation of As(III) is necessary in arsenic removal processes in order to increase its efficiency. Therefore, the Fenton Redox Chemistry is defined by catalytic activation of H2O2 and currently common used for its redox oxidative properties. In this study the effect of H2O2 production catalysed by O2 in metallic surfaces (MS), such as metallic Cu/Zn alloys and Composite Iron Matrix (CIM), for As(III) oxidation is under investigation. Preliminary results show that As(III) is partly oxidized only by the presence of O2 without addition of MS. However, with delayed addition of MS, As(III) oxidation occurred but only due to ROS catalyzed by the metallic surfaces. Subject As(III) oxidationFentonMetallic SurfacesReactive Oxygen Species To reference this document use: http://resolver.tudelft.nl/uuid:009f2702-3cc2-4a7d-aabe-e871a0440816 Source IWA 2014: IWA World Water Congress and Exhibition "Shaping our Water Future", Lisbon, Portugal, 21-26 September 2014 Part of collection Institutional Repository Document type conference paper Rights (c) 2014 The Author(s) Files PDF 315507.pdf 192.59 KB Close viewer /islandora/object/uuid:009f2702-3cc2-4a7d-aabe-e871a0440816/datastream/OBJ/view