关键词: 脉冲流光放电, 活性炭, 活性炭纤维, 降解作用

Abstract: The function of activated carbons and activated carbon fibers were investigated in the process of combined treatment of pulsed streamer discharge when used for degradation of organic wastewater. The result shows that a synergetic effect has formed when the pulsed streamer discharge is combined with the activated carbons or the activated carbon fibers, and the degradation rate of methyl orange has been enhanced 22% and 24% respectively. The activated carbons and the activated carbon fibers primarily play a catalytic role in the combined treatment. The reaction mechanism is that ozone is induced to cause a radical chain reaction and generate hydroxide radicals by the activated carbons and the activated carbon fibers surface. Further data analysis indicates that regeneration of activated carbons and activated carbon fibers is achieved in this process. With the addition of H₂O₂, synergistic effects are generated for the formation of the hydroxyl radical, which raise the utilization ratio of O₃ and UV. Furthermore, it is also helpful in the regeneration of the activated carbons and the activated carbon fibers.

Key words: activated carbon, activated carbon fiber, degradation , pulsed streamer discharge