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Electrochemical Degradation of Remazol Black B Dye Effluent

机译:Remazol黑B染料废水的电化学降解

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摘要

This study focused on the electrochemical degradation of hydrolyzed Remazol Black B (CI Reactive Black 5), a common diazo reactive dye, in aqueous solution. In the presence of various auxiliary dye chemicals, a typical Remazol Black simulated exhausted dyebath liquor was treated electrochemically in various basic electrochemical reactor configurations such as batch, batch recirculation and single pass systems. The effect of current density, supporting electrolyte concentration, electrolysis duration, specific electrode surface and fluid flow rate on pollutant removal and energy consumption performance of the systems was critically evaluated. Batch studies show the following operating parameters, current density: 2.5 A/dm~2, electrolysis duration: 6 h, and supporting electrolyte concentration: 3 g/L, were optimal for good overall performance of the system. Color removal was complete by 3 h of treatment for all combinations of parameters studied. The pollutant removal performance of the batch recirculation system was found to have improved considerably by increasing the flow rate. Performance of the batch recirculation system was comparatively better than the other rector configurations studied, with respect to capacity utilization and energy consumption.
机译:这项研究的重点是水溶液中常见的重氮活性染料水解的Remazol黑B(CI反应黑5)的电化学降解。在各种辅助染料化学品的存在下,典型的Remazol Black模拟废染浴液在各种基本的电化学反应器配置中进行电化学处理,例如分批,批循环和单程系统。严格评估了电流密度,辅助电解质浓度,电解时间,比电极表面和流体流速对系统中污染物去除和能耗性能的影响。批处理研究显示以下操作参数,电流密度:2.5 A / dm〜2,电解时间:6 h,支持电解质浓度:3 g / L,对于系统的良好整体性能而言是最佳的。对于所研究参数的所有组合,通过3小时的处理即可完成脱色。发现通过增加流速,批次再循环系统的污染物去除性能已得到显着改善。就容量利用率和能耗而言,间歇式再循环系统的性能相对于所研究的其他整流器配置而言相对更好。

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