| 移动床生物膜系统SND影响因素研究 |
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| 引用本文： | 魏海娟,张永祥,张粲.移动床生物膜系统SND影响因素研究[J].环境科学,2009,30(8):2342-2346. |
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| 作者姓名： | 魏海娟 张永祥 张粲 |
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| 作者单位： | 北京工业大学建筑工程学院,北京,100124 |
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| 基金项目： | 国家自然科学基金项目(40372113) |
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| 摘 要： | 采用移动床生物膜反应器实现了稳定同步硝化反硝化脱氮.实验研究了C/N对同步硝化反硝化脱氮的影响,结果表明,随着C/N的增加,同步硝化反硝化脱氮效率提高,在好氧条件下总氮去除率最高达到92.9%,但当C/N=12时,TN去除率提高并不明显;实验研究了pH对氨氮和TN去除效果的影响,结果表明,氨氮去除pH适宜区域为8.03~9.01,TN去除pH适宜区域为8.03~8.55;实验分析了实际生活污水中碱度和pH值对脱氮效果的影响,并对比研究了理论碱度和实际碱的关系,结果表明碱度和pH在同步硝化反硝化脱氮中对氮素去除的影响不大,不需要额外调节系统pH,也不需要在反硝化过程中补充碱度.单个周期内同步硝化反硝化过程中pH值和碱度变化规律的研究表明,pH可以指示SND中氮素转化过程.
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| 关 键 词： | 移动床生物膜系统 同步硝化反硝化 C/N pH 碱度 |
| 收稿时间： | 2008/9/11 0:00:00 |
| 修稿时间： | 2008/11/17 0:00:00 |
Study on Affecting Factors of Simultaneous Nitrification and Denitrification in Moving-bed Biofilm System |
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| WEI Hai-juan,ZHANG Yong-xiang and ZHANG Can.Study on Affecting Factors of Simultaneous Nitrification and Denitrification in Moving-bed Biofilm System[J].Chinese Journal of Environmental Science,2009,30(8):2342-2346. |
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| Authors: | WEI Hai-juan ZHANG Yong-xiang and ZHANG Can |
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| Institution: | College of Architecture and Civil Engineering;Beijing University of Technology;Beijing 100124;China |
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| Abstract: | The phenomenon of simultaneous nitrification and denitrification(SND) has taken place in moving-bed biofilm reactor(MBBR) steadily.The effect of C/N to denitrification effectiveness has been also studied in the experiment.The results of the treatment show that better denitrification efficiency could be obtained by increasing C/N ratio and the removal ratios of TN reached 92.9%.When C/N ratio is 12,the amplitude of TN removal ratio is not obvious.The effects of pH to ammonia nitrogen and TN removal ratio hav... |
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| Keywords: | C/N pH simultaneous nitrification and denitrification (SND) moving-bed biofilm reactor(MBBR) C/N pH alkalinity |
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