Influence of contaminant to hydrogen peroxide to catalyzer molar ratio in the advanced oxidation of thiocyanates and ammonia nitrogen using Fenton-based processes

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• 作者：Carolina Gonzalez-Merchan^a ; Thomas Genty^b ; Bruno Bussiè ; re^a ; Robin Potvin^b ; ^c ; Marc Paquin^d ; Mustapha Benhammadi^a ; Carmen M. Neculita^a ; ^{Carmen-Mihaela.Neculita@uqat.ca} ; ^{cmn@kaist.edu}
• 关键词：Fenton ; Fenton-like ; Cyanides ; Thiocyanates ; Ammonia nitrogen ; Gold mine effluents
• 刊名：Journal of Environmental Chemical Engineering
• 出版年：2016
• 出版时间：December 2016
• 年：2016
• 卷：4
• 期：4
• 页码：4129-4136
• 全文大小：1108 K
• 卷排序：4

文摘

H2O2 activation with Fe(III) and Fe(II) was assessed for SCN− and/or NH3–N removal. For SCN− and NH3–N removal, H2O2 activation by Fe(III) was better than by Fe(II). Efficiency of SCN− removal increased with H2O2 and Fe(III) concentrations. SCN− was efficiently removed even at 4 °C by the Fenton-based processes. SCN− were oxidized into SO42− and recovered CN−.