| 好氧条件下CANON工艺的启动研究 |
| 摘要点击 3541 全文点击 2849 投稿时间：2008-07-10 修订日期：2008-09-29 |
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| 中文关键词 部分亚硝化 ANAMMOX CANON 海绵 |
| 英文关键词 partial nitritatiom ANAMMOX CANON sponge |
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| 中文摘要 |
| 为揭示厌氧氨氧化细菌对于DO的适应性及缩短CANON(completely autotrophic nitrogen removal over nitrite)工艺的启动时间，以海绵为填料，采用小试研究了CANON工艺直接在好氧条件下的启动启动过程中，控制温度在35％℃±1℃，pH 7.39～8.01 之司部分亚硝化在60 d得以建立，亚硝酸盐积累率(NO2--N/NOx-；-N)达到98％，并保持长期稳定；连续运行至160 d时，厌氧氨氧化作用开始逐步显现，到210 d时，TN去除负荷达到1.22 kg/(m3·d)，TN去除率维持在约70％，成功地在好氧条件下启
动了CANON工艺启动过程中发现，以不含有机碳源的氨氮废水启动CANON反应器时，CANON反应器启动成功的标志为：①填料内部开始产气；②总氮损失与硝酸盐增加的比值趋于稳定，理论值为8，在本试验中，二者的比值平均为8.61 |
| 英文摘要 |
| The start-up of CANON process was studied to reveal adaptability and how to condense time of start-up with a lab-scale experhnentDuring start-up stage,temperature was controlled at 35℃±1℃,pH was 7.39-8.01 and free ammonium was 2.89-12.37 mg·L-1.Partialnitritation was first built up in 60th day and kept steady，nitrite accumulation rate (NO2--N/NOx-N) was up to 98％ In the 160th day，thereactor started to show effects of anaerobic ammonium oxidation，and in the 210th day，CANON process started-up under aerobic conditilossuccessfully，and total nitrogen removal load was 1.22 kg/(m3·d)and 70％ removal rate on average was attained When using ammoniumwastewater without organic carbon sources as influent，there are two signs to indicate the CANON start-up：first，nitrogen gas was produced incarriers；the other one was the ratio of total nitrogen loss and increased nitrate keep steady,and in this study average ratio was 8.61 comparedto theoretical value 8. |
