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首页> 外文会议>Regional Conference on Materials Engineering >Decolourization of Simulated Dye Wastewater Containing Reactive Blue 19 (RB19) by the Electro-Fenton Reaction in the Presence of Metal Oxide-Coated Electrodes
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Decolourization of Simulated Dye Wastewater Containing Reactive Blue 19 (RB19) by the Electro-Fenton Reaction in the Presence of Metal Oxide-Coated Electrodes

机译：在金属氧化物涂层电极存在下，通过电芬顿反应含有反应性蓝19（RB19）的模拟染料废水的脱色

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摘要

Reactive Blue (RB 19), also known as Remazol brilliant blue, is a widely-used colorant in various textile applications. RB 19 is very resistant to chemical oxidation due to its aromatic anthraquinone structure highly stabilized by resonance. Its relatively low fixation efficiency (75-80%) attributed to the competition between the formation of the reactive form (vinyl sulfone) and the hydrolysis reaction, results in its prevalence in textile wastewater discharges. In this study. electro-Fenton (EF) process, a popular advanced oxidation process (AOP) was used to treat RB 19 Dye-containing simulated wastewater. The electrochemical reactor (0.5 L) used in all experiments had parallel plate/mesh electrodes coated with metal oxides. Synthetic textile wastewater was prepared by dissolving RB 19 Dye (300 ppm) in distilled water. The effects of pH, initial [Fe~(2+)]. initial [H_2O_2] and current on RB 19 Decolorization efficiency were investigated. Removal of 100 percent RB 19 was achieved at pH 2, 0.71 mM initial [Fe~(2+)], 5 mM initial [H_2O_2] and 1.86 A in 20 minutes. High decolorization efficiencies and absence of sludge during the treatment process render the electro-Fenton process a viable treatment option for dye wastewaters.
机译：反应性蓝色（RB 19），也称为雷达唑辉煌的蓝色，是各种纺织应用中广泛使用的着色剂。由于其芳香的蒽醌结构，RB19对化学氧化非常耐化学氧化，这是通过共振高度稳定的。其相对较低的固定效率（75-80％）归因于反应形式（乙烯基砜）和水解反应的形成之间的竞争，导致纺织废水排放中的流行。在这项研究中。电气芬顿（EF）工艺，一种流行的晚期氧化过程（AOP）用于治疗含RB 19染料的模拟废水。所有实验中使用的电化学反应器（0.5L）具有涂有金属氧化物的平行板/网状电极。通过将RB 19染料（300ppm）溶解在蒸馏水中，制备合成纺织废水。 pH，初始[Fe〜（2+）]的影响。研究了初始[H_2O_2]和RB 19脱色效率的电流。在pH 2，0.71mm初始[Fe〜（2+）]，5mm初始[H_2O_2]和1.86A的20分钟内，实现了100％RB 19。在处理过程中，高脱色效率和污泥的不存在使得电芬顿处理染料废水的可行处理选择。

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