Catalytic Effect of Activated Carbon and Activated Carbon Fiber in Non-Equilibrium Plasma-Based Water Treatment

摘要

Catalysis and regeneration efficiency of granular activated carbon (GAC) and acti-vated carbon fiber (ACF) were investigated in a non-equilibrium plasma water treatment reactorwith a combination of pulsed streamer discharge and GAC or ACF.The experimental results showthat the degradation efficiency of methyl orange (MO) by the combined treatment can increase22% (for GAC) and 24% (for ACF) respectively compared to pulsed discharge treatment alone,indicating that the combined treatment has a synergetic effect.The MO degradation efficiencyby the combined treatment with pulsed discharge and saturated GAC or ACF can increase 12%and 17% respectively compared to pulsed discharge treatment alone.Both GAC and ACF showcatalysis and the catalysis of ACF is prominent.Meanwhile,the regeneration of GAC and ACFare realized in this process.When H_2O_2 is introduced into the system,the utilization efficiencyof ozone and ultraviolet light is improved and the regeneration efficiency of GAC and ACF is alsoincreased.