摘要
对比分析了运用缺氧／好氧SBR工艺处理2种COD／N不同的废水的脱氮效果，结果表明，2种废水的脱氮主要是通过短程硝化反硝化实现的，反应器中的NH4^+-N浓度和pH值是控制亚硝酸型硝化的重要因素，经过部分厌氧消化的废水由于保持了较高的COD／N，脱氮效果明显好于完全厌氧消化废水，NH4^+-N去除率达到98％以上，但出水反硝化不完全，投加乙酸钠后出水NOx^--N由100-120mg／L减少到10-20mg／L，乙酸钠投加量以275mg／L为宜．
The denitrification effect of using Anoxic/Aerobic SBR technique to treat two kinds of wastewater of different COD/N was compared and analyzed in the experiment. Denitrification process of two kinds of wastewater was realized mainly through nitrite nitrification/dentrification; NH4+-N concentration and pH value in the reactor were the important factors controlling nitration of nitrite type. Due to maintaining higher COD/N, denitrification effect of the wastewater digested partly was higher markedly than that of digested completely, NH4+-N removal rate reached above 98%. But the denitrifying of effluent was not complete, and after adding sodium acetate the NOx--N of affluent decreased from 100~120mg/L to 10~20mg/L, and adding amount of 275mg/L was adaptable.
出处
《中国环境科学》
EI
CAS
CSCD
北大核心
2005年第B06期43-46,共4页
China Environmental Science
基金
国家自然科学基金资助项目(70171055
50478053)
关键词
短程硝化反硝化
缺氧/好氧SBR
猪场废水
厌氧消化
nitrite nitrification/denitrification
anoxic/aerobic SBR
piggery wastewater
anaerobic digestion
