等离子体催化降解有机废水研究

Catalytic Degradation of Organic Wastewater Using Plasma Technique

研究了多种因素对高压脉冲介质阻挡放电低温等离子体法处理印染废水效果的影响。通过实验得出结论:随着有效处理时间和峰值外施电压的增加,废水中的有机物的去除率增加;随着水样浓度的增加,废水中有机物的去除率降低;随着催化剂(TiO)2量的增加,废水中有机物的去除率先升高后降低,最佳催化剂的加入量为0.5 g/L TiO2悬浮液0.5 mL。

This paper deals with an experiment on use of pulsed high-voltage corona discharge plasma for catalytic degradation of organic compound in dyeing wastewater.It was found from the bench scale experiment that with the peak voltage supplied by the pulsed power being elevated,removal rate of the organic compound increased.Removal of organic compound decreased as the dye concentration in aqueous solution increased.With more catalyst（TiO2） being added,removal of organic compound increased at first and then decreased.In addition,TiO2 suspended solution 0.5 g/L is the best dosage adequate for degrading the dye.