壬基酚对序批式活性污泥法处理氨氮废水系统的影响  

Effects of nonylphenol on ammonia nitrogen wastewater treatment in SBR

作　　者：徐文韬[1] 何义亮[1] 张小凡[1] 

机构地区：[1]上海交通大学环境科学与工程学院,上海200240

出　　处：《环境污染与防治》2013年第2期57-61,66,共6页Environmental Pollution & Control

基　　金：国家自然科学基金资助项目(No.50978161);"十一五"国家重大科技水专项(No.2008ZX07211-002)

摘　　要：采用序批式活性污泥法(SBR)工艺,通过向SBR反应器内投加不同浓度的壬基酚(NP),探讨其对脱氮系统的影响。结果表明,当NP质量浓度为10mg/L时,对氨氮的去除产生抑制,但并不明显,氨氮去除率仍可达约90%,在反硝化过程中,SBR反应器内会累积大量的NO2--N,对总氮的去除产生较大影响,总氮去除率只有50%,NO3--N的生成量不稳定;随着NP浓度的增加,对氨氮的去除产生抑制作用更为明显,当NP质量浓度达到80mg/L时,氨氮去除率只有约60%,总氮去除率达到最低,只有23%。Batch experiments of ammonia nitrogen wastewater treatment in SBR were carried out to investigate the effect of nonylphenol （NP） with different concentration on nitrogen removal. The results showed that the removal of ammonia was inhibited when the NP concentration was 10 mg/L, while the influence was not obvious and the nitro- gen removal efficiency still reached about 90%. However, large amount of nitrite was accumulated in denitrification process which further impacted the total nitrogen removal efficiency in SBR, the removal rate of total nitrogen was only 50% and nitrate formation was instable. The inhibition became more evident with increasing the NP concentra- tion, when NP concentration was 80 mg/L, the ammonia removal efficiency was only 60%, and the total nitrogen a- chieved the minimum removal efficiency of only 23%.

关 键 词：壬基酚 SBR 氨氮废水 脱氮 

分 类 号：X703[环境科学与工程—环境工程]