| 倒置A2/O工艺的短程生物脱氮中试 |
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| 引用本文： | 付国楷,周琪,杨殿海,邱兆富,徐晓宇.倒置A2/O工艺的短程生物脱氮中试[J].中国给水排水,2006,22(17):38-41. |
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| 作者姓名： | 付国楷 周琪 杨殿海 邱兆富 徐晓宇 |
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| 作者单位： | 同济大学,污染控制与资源化研究国家重点实验室,上海,200092 |
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| 摘 要： | 在中试规模的倒置A^2／O工艺中，考察了通过控制溶解氧浓度实现短程硝化反硝化的效果。试验表明，在溶解氧为0．3～0．8mg／L的条件下，可以实现短程硝化反硝化，平均亚硝化率可达64．5％，对TN的平均去除率为66．8％，但易导致严重的污泥膨胀；在低氧（DO=0．3～0．8mg／L）与常氧（DO=1．6～2．5mg／L）模式交替运行的条件下，可以维持稳定的短程硝化反硝化．平均亚硝化率可达48．4％，对TN的平均去除率为64．3％，对TP的平均去除率可达38．5％。污泥的SVI控制在112mL／g左右。
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| 关 键 词： | 短程硝化反硝化 倒置A2/O工艺 低C/N值 城市污水 |
| 文章编号： | 1000-4602（2006）17-0038-04 |
| 收稿时间： | 2006-03-06 |
| 修稿时间： | 2006-03-06 |
Pilot Scale Test on Short-cut Nitrification and Denitrification in Inverted A2/O Process |
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| FU Guo-kai,ZHOU Qi,YANG Dian-hai,QIU Zhao-fu,XU Xiao-yu.Pilot Scale Test on Short-cut Nitrification and Denitrification in Inverted A2/O Process[J].China Water & Wastewater,2006,22(17):38-41. |
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| Authors: | FU Guo-kai ZHOU Qi YANG Dian-hai QIU Zhao-fu XU Xiao-yu |
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| Affiliation: | State key Lab of Pollution Control and Resource Reuse; Tongji University, Shanghai 200092, China |
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| Abstract: | The short-cut nitrification and denitrification in the pilot scale inverted A~2/O process by controlling the DO concentration was investigated.Results show that when the DO is 0.3-0.8 mg/L,the short-cut nitrification and denitrification occurs.The average nitrosation rate is 64.5% and the average removal rate of TN is 66.8%,however,the sludge bulks severely.Under the alternative operation from low level of oxygen concentration(DO=0.3-0.8 mg/L) to normal level(DO=1.6-2.5(mg/L)),the stable short-cut nitrification and denitrification lasts with the average nitrosation rate being 48.4%.The removal rates of TN and TP can reach 64.3% and 38.5% respectively with the SVI of around 112 mL/g. |
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| Keywords: | short-cut nitrification and denitrification inverted A^2/O process low C/N ratio municipal wastewater |
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