| pH值和碳氮比对亚硝酸型反硝化影响的研究 |
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| 引用本文： | 杨莎莎,宋英豪,赵宗升,贾立敏. pH值和碳氮比对亚硝酸型反硝化影响的研究[J]. 环境工程学报, 2007, 1(12): 15-19 |
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| 作者姓名： | 杨莎莎 宋英豪 赵宗升 贾立敏 |
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| 作者单位： | 北京交通大学市政与环境工程系,北京,100044;北京市环境保护科学研究院,北京,100037;北京科技大学土木与环境工程学院,北京,100083;北京市环境保护科学研究院,北京,100037 |
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| 基金项目： | 国家自然科学基金资助项目（20577003）；国家高技术研究发展计划“863”项目（2006AA06Z320） |
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| 摘 要： | 利用序批式反应器中长期驯化好的以亚硝酸盐为主要基质的纯种污泥，做锥形瓶实验，分别研究pH和碳氮比对亚硝酸型反硝化的影响。结果表明，亚硝酸型反硝化适宜的pH范围在7.7～8.6，最佳pH值在8.2左右；碳氮比（C/N）大于1.94，可实现连续稳定的脱氮效果，起始亚硝氮比基质降解速率随C/N的增加而增加，大于3.11速率几乎不再增加，通过动力学分析，得出该实验条件下C/N的饱和常数Ks为9.36。
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| 关 键 词： | 亚硝酸型反硝化 pH值 碳氮比 比基质降解速率 |
| 文章编号： | 1673-9108(2007)12-0015-05 |
| 收稿时间： | 2007-08-08 |
| 修稿时间： | 2007-08-08 |
Study on influences of pH values and C/N ratio on denitrification via nitrite |
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| Yang Shash,Song Yinghao,Zhao Zongsheng and Jia Limin. Study on influences of pH values and C/N ratio on denitrification via nitrite[J]. Techniques and Equipment for Environmental Pollution Control, 2007, 1(12): 15-19 |
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| Authors: | Yang Shash Song Yinghao Zhao Zongsheng Jia Limin |
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| Affiliation: | 1.Department of Municipal & Environmental Engineering,Beijing Jiaotong University, Beijing 100044,2.Beijing Municipal Research Institute of Environmental Protection, Beijing 100037; 3. School of Civil and Environmental Engineering,University of Science and Technology Beijing, Beijing 100083,1.Department of Municipal & Environmental Engineering,Beijing Jiaotong University, Beijing 100044 and 2.Beijing Municipal Research Institute of Environmental Protection, Beijing 100037 |
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| Abstract: | Experiments of conical flask were done to study on effects of pH value and C/N ratio on denitrification via nitrite. Results show that suitable range of pH value is between 7.7 and 8.6 and the optimal pH value is 8.2, nitrogen can be continuously removed when C/N ratio is beyond 1.94. Starting specific substrate degradation rate rises with C/N ratio rising, but it hardly increases when C/N ratio is higher than 3.11. Saturation constant Ks of C/N ratio is 9.36 by kinetic analysis on experimental condition. |
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| Keywords: | denitrification via nitrite pH value C/N ratio specific substrate degradation rate |
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