摘要： 采用O₃-H₂O₂工艺取代Fe/C-H₂O₂工艺对某农药厂废水进行预处理，对比研究了2种工艺对废水COD的处理效果，以及对后续生化处理的影响。结果表明，相比于Fe/C-H₂O₂工艺，O₃-H₂O₂预处理对废水COD具有更好的处理效果，经O₃-H₂O₂ 和Fe/C-H₂O₂ 预处理后，废水B/C 分别为0.64 和0.48。污泥镜检结果表明，废水经O₃-H₂O₂工艺处理后，后续生化处理好氧池丝状菌生长量降低，从而抑制了污泥膨胀的产生。

关键词: 高级氧化, 农药废水, 污泥膨胀

Abstract: The wastewater in a pesticide plant has been pretreated by O₃-H₂O₂ process instead of Fe/C-H₂O₂ process. The treatment effects of the two kinds of processes on wastewater COD and their influences on the subsequent biochemical treatment have been compared and researched. The results show that O₃-H₂O₂ pretreatment has better treatment effect on wastewater COD than Fe/C-H₂O₂ process. After pretreated by O₃-H₂O₂ process and Fe/C-H₂O₂ process,the wastewater B/C are 0.64 and 0.48,respectively. The result of sludge SEM detection shows that after the wastewater has been treated by O₃-H₂O₂ process,the increment of filamentous bacteria in the subsequent biochemical treatment aerobic pond is reduced,and the occurrance of sludge bulking can thus be inhibited.

Key words: advanced oxidation, pesticide wastewater, sludge bulking

中图分类号: 

• X703