摘要：

分别采用臭氧氧化和Fenton氧化工艺对合成氨工业废水生化处理后的排放尾水进行深度处理实验研究。结果表明,尾水COD为48 mg/L,BOD₅为8 mg/L,当臭氧氧化反应进行120 min后,出水COD最低,为41 mg/L,去除率为14.58%,B/C由0.16提高到0.31。在n(Fe²⁺):n(H₂O₂)=20.38时,Fenton氧化出水COD为18 mg/L,COD去除率达到64.58%,满足深度处理排放标准要求。研究结果表明Fenton氧化可以作为该尾水的深度处理工艺。

关键词: 合成氨工业废水, 臭氧氧化, Fenton氧化, 高级氧化

Abstract:

The experimental research on the advanced treatment of the tail water discharged after synthetic ammonia industrial wastewater was treated biochemically has been conducted by ozone oxidation and Fenton oxidation,respec-spectively. The results show when the tail water COD is 48 mg/L,BOD₅ 8 mg/L,and ozone oxidation reaction time 120 min,the effluent COD value is the lowest,as 41 mg/L, removing rate is 14.58%,and B/C is improved from 0.16 to 0.31. When n(Fe²⁺):n(H₂O₂) is 20.38,the Fenton oxidation effluent COD is 18 mg/L and COD removing rate reaches 64.58%,meeting the requirements for the advanced treatment discharge standard. The research results show that Fenton oxidation can be used as an advanced treatment technology of the tail water.

Key words: synthetic ammonia industrial wastewater, ozone oxidation, Fenton oxidation, advance oxidation

中图分类号: 

• X703.1