De-colorization of Reactive Brilliant Orange X-GN by a novel rotating electrochemical disc process.
De-colorization of Reactive Brilliant Orange X-GN by a novel rotating electrochemical disc process.
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DOI：
10.1016/s1001-0742(08)62188-9
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发表时间：
2008
影响因子：
6.9
通讯作者：
D. Zhong;Ji Yang;Y. Xu;J. Jia;Yalin Wang;Tonghua Sun
中科院分区：
文献类型：
--
作者：
D. Zhong;Ji Yang;Y. Xu;J. Jia;Yalin Wang;Tonghua Sun
介绍了一种新型的废水处理装置--转盘电化学法(RECDP)。阳极和阴极交替均匀地分布在一个扁平的圆盘上，旨在促进有机物从本体溶液到电极表面的传质，同时增加氧气从空气到液体的转移，有利于有机物的氧化。利用该装置对活性艳橙X-GN(RBO)进行了脱色实验研究。结果表明，电解60min后，RECDP的脱色率可达99.5%。考察了转盘转速、电流强度、pH值、处理时间等因素对脱色效果的影响，并用电子顺磁共振(EPR)、紫外-可见光谱(UV-Vis)和红外光谱(IR)研究了脱色机理。已证实是自由基氧化导致了染料的变色。
A novel electrochemical setup for wastewater treatment–rotating electrochemical disc process (RECDP) was developed in this article. The anode and cathode are distributed alternatively and evenly on a flat round disc, which was designed to improve mass transfer of organics from bulk solution to electrode surface, while at the same time increasing oxygen transfer from air to the liquid to benefit the organics oxidization. The color removal of dye Reactive Brilliant Orange X-GN (RBO) was experimentally investigated using the setup. The results show that the RECDP could efficiently remove the color by 99.5% after 60-min electrolysis. The influence of factors such as the disc rotating speed, current intensity, pH, and treating time was also explored, and the de-colorization mechanism was studied with electron paramagnetic resonance (EPR), UV-Vis, and IR. It has been confirmed that the free radicals oxidization leads to the dye de-coloration.