介质阻挡放电等离子体处理C.I.活性黄145废水的研究

Degradation of C. I. Reactive Yellow 145 Wastewater by Dielectric Barrier Discharge

本文采用介质阻挡放电等离子体技术对模拟C.I.活性黄145废水进行降解实验,考察了峰值电压、放电频率、气体流量、作用时间等因素对该染料废水色度、COD等处理效果的影响,并初步探讨C.I.活性黄145降解的降解机理。结果表明,介质阻挡放电可有效去除废水色度（去除率〉95%）,COD去除率虽不高（去除率30%~40%）,但生化可行性有一定提高（B/C由0.04上升到0.32）。通过降解机理的探讨表明,介质阻挡放电可将染料大分子降解为小分子的酸。

The wastewater simulated with C. I. Reactive Yellow 145 was degraded by dielectric barrier discharge（ DBD）. The effect factors such as peak voltages,voltage frequencies,gas flow,and working time on COD and color degradation were studied; and the degradation mechanism of C. I. Reactive Yellow 145 was also discussed. The result indicate that the method of DBD could decolorize valid（ removal rate more than 95%）,and the biological treatment ability was enhanced（ B /C value was improved from 0. 04 to 0. 3）.Others,the big molecule of reactive yellow could be degraded to small molecule,and maybe the small molecule was acid.