Fluorescent Brightener 28 Removal by Ozonation or Advanced Oxidation Processes (O3/H2O2) |
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Authors: | S. Lemeune J.M. Barbe A. Trichet R. Guilard |
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Abstract: | The aim of this work is to study the reaction of ozone and combined ozone/hydrogen peroxide mixtures with the fluorescent brightener 28 in dilute aqueous solution using controlled experimental conditions. The kinetics were also evaluated under various experimental conditions. The main ozonation by-products have been identified by High Pressure Anionic Exchange Chromatography (HPAEC) and Gas Chromatography coupled with Mass Spectrometry (GC-MS) techniques and a reaction pathway is proposed. In order to confirm this mechanism, melamine and s-triazine have been treated under the same reaction conditions and their decomposition pathways were studied. |
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Keywords: | Ozone Fluorescent Brightener 28 Advanced Oxidation GC-MS HPAEC Triazine Melamine Ozonation Byproducts Kinetics |
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