【摘要】 采用单独Fenton氧化法和联合超声波Fenton氧化法去除经过生化处理后的造纸法再造烟叶废水COD,通过研究反应时间、H2O2和Fe2+用量对COD去除率的影响,确定最佳实验条件。结果显示,Fenton法和联合超声波Fenton法对COD最大去除率分别为66.18%和76.99%;对比结果发现,超声波可以减少Fenton反应时间,降低COD去除率最大时的Fenton试剂用量,保证高COD去除率的同时扩宽Fenton试剂用量范围,超声波协同Fenton反应的作用显著。更多还原

【Abstract】 Fenton oxidation and ultrasound-Fenton oxidation process respectively were used to remove COD of paper-process reconstituted tobacco wastewater treated by biochemical processes. The effects of factors including reaction time,H2O2 dosage and Fe2 +dosage on COD removal efficiency were investigated,and the optimal conditions were researched. The results showed that the maximum removal efficiency of wastewater COD reached66. 18% and 76. 99%,respectively,when wastewater was treated by Fenton oxidation and ultrasound-Fenton oxidation process. The compared results showed that ultrasound could reduce the Fenton reaction time and the Fenton reagent dosage when COD removal efficiency reached maximum,and expand the range of Fenton reagents’ dosage while ensuring a high COD removal efficiency. Ultrasound had significantly synergistic effect on the Fenton reaction.更多还原