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首页> 外文期刊>Journal of Environmental Engineering >Investigation into the Exothermic Laws of Degradation for o-Phenylenediamine-Containing Wastewater by the Fenton Reaction
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Investigation into the Exothermic Laws of Degradation for o-Phenylenediamine-Containing Wastewater by the Fenton Reaction

机译：FENTON反应调查含O-苯二胺废水的放热定律

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摘要

This study investigates the exothermic laws involved when Fenton's reagent is employed in the degradation of organic substances to achieve positive energy in wastewater treatment. It analyzes the effects of Fenton's reagent concentration, target pollutant (o-phenylenediamine) concentration, initial reaction temperature, and reaction time to evaluate the observed temperature elevation and its exothermic law for o-phenylenediamine degradation by Fenton's reagent. It was found that the Fenton oxidation process is accompanied by a rapid temperature elevation of the solution, which was mainly influenced by the concentration of added hydrogen peroxide and the concentration of the target pollutant. More specifically, when [H2O2] is 0.15 mol center dot L-1, [Fe2+] is 10 mmol center dot L-1, and the reaction time is 30 min, the degradation efficiency of o-phenylenediamine (200 mL and 0.04 mol center dot L-1) was 95.87%, and the temperature increased by 9.2 degrees C. It was also found that the heat produced during o-phenylenediamine degradation by Fenton's reagent mainly originated from the exothermic reaction between the OH center dot radicals (and other reactive oxygen species) and o-phenylenediamine (and its intermediate product), in addition to the exothermic production of OH center dot free radicals and the consumption of other active groups.
机译：本研究调查了芬顿试剂在有机物质降解时涉及的放热法律，以实现废水处理中的阳性能量。它分析了FENTON试剂浓度，靶污染物（O-苯二胺）浓度，初始反应温度和反应时间来评估观察到的温度升高及其对O-苯二胺的放热法的影响。发现芬顿氧化过程伴随着溶液的快速温度升高，主要受到过氧化氢的浓度和靶污染物的浓度的影响。更具体地，当[H 2 O 2]为0.15mol中心点L-1时，[Fe2 +]是10mmol中心点L-1，反应时间为30分钟，O-苯二胺的降解效率（200ml和0.04 mol中心点L-1）为95.87％，温度升高9.2℃。还发现芬顿试剂的O-苯二胺降解期间产生的热量主要来自OH中心点基团（和其他反应性之间的放热反应。氧气种类）和O-苯二胺（及其中间产物），除了放热生产OH中心点自由基和其他活性组的消耗外。

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