Zhang Yan, Guo Yan, Bai Yu-Hu, Tan Ling-Ling, Wang Yong-Sheng, Koyama Toichiro
Key Laboratory of Beijing for Water Quality Science and Water Environmental Recovery Engineering, College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, China.
Huan Jing Ke Xue. 2010 Jan;31(1):134-9.
Catching bed biofilm reactor combined with traditional biofilm process as a novel treatment was developed. The performance of the reactor for nitrogen removal was investigated. Steady removal effect with 81.7% of average COD removal rate was achieved in various hydraulic retention time (HRT). Even when hydraulic retention time (HRT) was only at 3.90 h with average NH4(+) -N volumetric loading of 0.47 kg/(m3 x d) and TN of 0.59 kg/(m3 x d), 92.7% of average NH4(+) -N removal rate and 67.5% of average TN removal rate were achieved. In the experiment dissolved oxygen (DO) was the most crucial factor for removal rates of TN and pH was a crucial factor for removal rates of NH4(+) -N, TN. The optimal condition was with DO 0.1-2.0 mg/L and pH of 7.0-7.5. Mechanisms of TN removal via simultaneous nitrification and denitrification in the experiment were analyzed.
开发了一种结合传统生物膜工艺的新型处理方法——捕获床生物膜反应器。研究了该反应器的脱氮性能。在不同的水力停留时间（HRT）下，该反应器实现了稳定的去除效果，平均化学需氧量（COD）去除率达到81.7%。即使水力停留时间（HRT）仅为3.90小时，平均氨氮（NH4(+) -N）容积负荷为0.47千克/（立方米·天），总氮（TN）为0.59千克/（立方米·天），氨氮平均去除率仍达到92.7%，总氮平均去除率达到67.5%。实验中，溶解氧（DO）是影响总氮去除率的最关键因素，而pH值是影响氨氮和总氮去除率的关键因素。最佳条件是溶解氧为0.1 - 2.0毫克/升，pH值为7.0 - 7.5。分析了实验中通过同步硝化反硝化进行总氮去除的机制。
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