De-colorization of Reactive Brilliant Orange X-GN by a novel rotating electrochemical disc process

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 u...

电化学转盘/电凝聚法处理模拟活性染料废水的研究

采用一种新的电化学方法——电化学转盘/电凝聚法来处理模拟活性翠蓝KN-G废水,考察了电压、转速、pH、反应时间对色度、TOC去除率的影响,并确定了最佳反应条件.在最佳反应条件（电压12 V,转速70 r/min,pH为4～5,反应时间为60 min）下,色度和TOC去除率可分别达到95.3%和73.5%.并初步探讨了活性翠蓝KN-G的降解机理.

硫化钠在旋转盘环电极上的电化学氧化

采用旋转盘环铂电极研究了硫化钠氧化的电化学过程。硫化钠解离产生的HS- 离子在圆盘电极上氧化 ,而在环电极上被还原。实验结果表明 ,当圆环电极的旋转频率为 2 0Hz、圆盘电极上的电压大于 -0 .15V时 ,HS- 离子在圆盘电极上通过一系列电化学反应氧化生成S0 ,其中间产物包括Sx2 - 或S22 - ;在环电极上施加 -0 .8V电压后 ,S0 在环电极上被还原。旋转圆环铂电极的循环伏安扫描曲线表明 ,硫化钠的氧化过程产生了中间产物S2 - x ,进一步氧化形成元素S0 。