【摘要】 将超声波与光催化技术耦合（US/UV）,对吸附苯酚饱和的活性炭进行再生，对比了光催化、超声波及超声波耦合光催化3种工艺条件下的再生效果，研究了TiO₂投加浓度、超声波功率和再生液初始pH值对活性炭再生的影响，并分析了不同工艺再生前后活性炭结构的变化。实验结果表明，US/UV耦合工艺的再生效果优于单独的光催化再生和超声波再生工艺。当TiO₂浓度为100 mg/L,超声波功率为100 W,pH为7～9时，US/UV耦合工艺的再生率达到74.51%;并且对活性炭的孔隙结构破坏较小，微孔恢复程度较高，具有再生速率快、再生液苯酚残留浓度低、再生效果稳定的特点。更多还原

【Abstract】 The ultrasound and photocatalytic technology are coupled（US/UV） to regenerate the activated carbon saturated with adsorbed phenol. The regeneration effects under the three process conditions of photocatalysis, ultrasound and ultrasound coupling photocatalysis are compared. The effects of TiO₂ addition concentration, ultrasonic power and initial pH of regeneration solution on the regeneration of activated carbon were investigated, and the changes in the structure of activated carbon before and after regeneration by different processes were analyzed. The experimental results show that the regeneration effect of the US/UV coupling process is better than that of the photocatalytic regeneration and ultrasonic regeneration alone. When the TiO₂ concentration was 100 mg/L, the ultrasonic power was 100 W, and the pH was 7-9, the regeneration efficiency of the US/UV coupling process reached 74.51%; the destruction of the pore structure of the activated carbon was small, and the degree of recovery of the micropores was high. The US/UV coupling process was characterized by fast regeneration rate, low concentration of the regeneration solution phenol residue, and stable regeneration effect.更多还原