【摘要】 采用超声波/过氧化氢(US/H2O2)工艺对苯酚模拟废水进行了降解,考察了处理时间、苯酚溶液的初始pH值、初始浓度、反应温度等对降解效果的影响。实验结果表明:在单一超声波辐照或过氧化氢氧化下苯酚的降解率低,而两者联合降解效果明显提高,表明存在协同效应。在苯酚废水初始浓度为50mg/L、初始pH值3.01、反应温度25℃、处理时间180min在US/H2O2共同作用下,苯酚降解率为52.2%。苯酚在US/HO工艺中的降解反应符合表观一级反应动力学。更多还原

【Abstract】 A simulated waste water containing Phenol by the H2O2 with ultrasound advanced oxidation process was carried out.The effects of reaction time,initial pH,initial concentration of phenol and reaction temperature on the degradation efficiency of phenol were studied.The results showed that the degradation efficiency of phenol by H₂O₂ with Ultrasound was much higher than that by single H₂O₂ or Ultrasound.The synergistic effect of the ultrasound and H₂O₂ was also studied.The degradation efficiency of phenol could reach 52.2% by H₂O₂ with Ultrasound.The reaction conditions were as following:the initial concentration of phenol was 50mg/L,reaction temperature was 25℃,initial pH was 3.01,and treatment time was 180 min.The degradation process of phenol by US/H₂O₂ was in conformity with pseudo-first-order kinetics.更多还原