活性炭纤维在脉冲放电水处理中的催化作用

为了探索脉冲放电水处理反应器与活性炭纤维联合应用的可行性以及活性炭纤维在脉冲放电过程中的作用,将活性炭纤维加入气液串联放电反应器中对模拟污染物甲基橙进行了联合降解,并对活性炭纤维在脉冲放电过程中表现出的催化作用进行了研究。实验结果表明:脉冲放电和活性炭纤维联合处理,大幅度提高了降解率近24%,说明活性炭纤维与脉冲放电联合具有协同效应;脉冲放电和吸附饱和活性炭纤维联合处理与单独脉冲放电处理相比降解率提高16.7%,活性炭纤维的催化作用显著;加入H2O2对OH的形成具有增强作用,同时提高了UV和O3的利用率而且还有利于活性炭纤维的再生。

Catalysis of Activated Carbon Fiber in High Voltage Pulsed Discharge Water Treatment

The application of gas-liquid series electrical discharge reactor for the degradation of methyl orange(MO)in the presence of activated carbon fiber(ACF)was investigated and the effect of ACF in pulse discharge was evaluated.Under the experimental conditions used in this work,the degradation efficiency can be remarkably increased by the combined treatment of pulse discharge and ACF,which increases by 24% comparing with pulsed discharge treatment alone,indicating that the combined treatment has a synergetic effect.The degradation efficiency by the combination of pulse discharge and saturated ACF can be increased by 16.7% comparing with pulsed discharge treatment alone.Furthermore,the virgin and saturated ACF can both be regenerated in situ in pulse discharge.When hydrogen peroxide is introduced into the system,the formation of hydroxyl radical is enhanced and the utilization efficiency of ozone and ultraviolet light is improved,and the regeneration efficiency of ACF is also increased.