| 回流比对前置反硝化BAF处理效果的影响研究 |
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| 引用本文： | 郑俊,汪荣,张刚.回流比对前置反硝化BAF处理效果的影响研究[J].中国给水排水,2007,23(21):24-27. |
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| 作者姓名： | 郑俊 汪荣 张刚 |
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| 作者单位： | 安徽工业大学,环境工程系,安徽,马鞍山,243002 |
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| 摘 要： | 前置反硝化曝气生物滤池（BAF）工艺融合了BAF工艺与A／O工艺的优点，具有良好的脱氮性能，其中回流比是影响其处理效果的一个重要因素。考察了在回流比分别为100％、200％、300％的条件下该工艺对COD、NH3-N、TN的去除效果。试验结果表明：在回流比从100％提高到300％的过程中，对污染物的去除效果以200％为界呈先上升后下降的趋势，但对去除COD、NH3-N的影响不大，对去除TN的影响显著；在200％的最佳回流比下，对COD、NH3-N和TN的平均去除率分别为89．1％、98．6％和75．5％。
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| 关 键 词： | 曝气生物滤池 前置反硝化 回流比 |
| 文章编号： | 1000-4602（2007）21-0024-04 |
| 修稿时间： | 2007-07-04 |
Study on Impact of Reflux Ratio on Treatment Efficiency of Predenitrification BAF |
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| ZHENG Jun,WANG Rong,ZHANG Gang.Study on Impact of Reflux Ratio on Treatment Efficiency of Predenitrification BAF[J].China Water & Wastewater,2007,23(21):24-27. |
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| Authors: | ZHENG Jun WANG Rong ZHANG Gang |
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| Affiliation: | Department of Environmental Engineering, Anhui University of Technology, Maanshan 243002, China |
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| Abstract: | The pre-denitrifieation BAF process integrates the advantages of the BAF and A/O processes and has better performance of nitrogen removal. The reflux ratio is a decisive factor influencing the pollutant removal efficiency. The removal effieieneies of COD, NH3 - N and TN at the reflux ratios of 100%, 200% and 300% were investigated. The results show that the pollutant removal efficiency increases when the reflux ratio ranges from 100% to 200% , but decreases when the reflux ratio ranges from 200% to 300%. However, the TN removal is significantly influenced, while the COD and NH3 - N removal is less influenced. At the optimal reflux ratio of 200%, the average removal rates of COD, NH3 - N and TN are 89.1% , 98.6% and 75.5% , respectively. |
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| Keywords: | BAF pre-denitrification reflux ratio |
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