| 环流曝气塔中生物脱氮过程的研究 |
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| 引用本文： | 杨海光,陈筛林,李飞,江田民,丁富新. 环流曝气塔中生物脱氮过程的研究[J]. 环境科学, 2004, 25(1): 158-160 |
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| 作者姓名： | 杨海光 陈筛林 李飞 江田民 丁富新 |
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| 作者单位： | 清华大学化学工程系,北京,100084;清华大学化学工程系,北京,100084;清华大学化学工程系,北京,100084;清华大学化学工程系,北京,100084;清华大学化学工程系,北京,100084 |
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| 基金项目： | 国家"十五"科技攻关项目(ZZ01-10-03-12) |
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| 摘 要： | 利用环流曝气塔进行同时硝化/反硝化(sND)脱氮实验.实验中,分别采用不同降解性能的碳源以及采用不同的碳源投加方式,研究反应器内的脱氮过程,监测处理过程中NOx--N浓度和溶解氧DO的变化.实验显示,在COD 800mg/L+800mg/L的分批加料方式下,NH4+-N的降解得到加强,出水中NH4+-N浓度低于3mg/L;利用较难降解物质作为碳源时,利于反应器内低溶解氧条件的出现,促进了反硝化的进行,实验在采用醇类碳源时脱氮效果好于葡萄糖的情况.
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| 关 键 词： | 硝化 反硝化 硝态氮 溶解氧 环流曝气塔 |
| 文章编号： | 0250-3301(2004)01-0158-03 |
| 收稿时间： | 2003-02-14 |
| 修稿时间： | 2003-04-29 |
Study on Biological Nutrients Removal in Loop Reactor |
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| YANG Hai-guang,CHEN Shai-lin,LI Fei,JIANG Tian-min and DING Fu-xin. Study on Biological Nutrients Removal in Loop Reactor[J]. Chinese Journal of Environmental Science, 2004, 25(1): 158-160 |
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| Authors: | YANG Hai-guang CHEN Shai-lin LI Fei JIANG Tian-min DING Fu-xin |
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| Affiliation: | Department of Chemical Engineering, Tsinghua University, Beijing 100084, China. yhg00@mails.tsinghua.edu.cn |
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| Abstract: | The simultaneity nitrification and denitrification (SND) was studied in a loop reactor. In the experiment, the research of biological nutrients removal was carried by changing carbon source and the method of adding carbon source, and the concentration of NOx--N and the dissolved oxygen(DO) level were also inspected. The results indicated that the removal of NH4+-N could be enhanced by adding carbon source with COD 800mg/L+800 mg/L. And the concentration of NH4+-N in outlet was lower than 3mg/L; Lower DO level in the reactor could be made easily by using difficultly reduced carbon source. It was useful to improve the biological nutrients removal. When using ethanol or glycerol as carbon source, the removal efficiency of NH4+-N was better than using glucose. |
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| Keywords: | nitrification denitrification NOx--N dissolved oxygen (DO) loop reactor |
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