| 环流曝气塔中生物脱氮过程的研究 |
| 摘要点击 2039 全文点击 1828 投稿时间：2003-02-14 修订日期：2003-04-29 |
| 查看HTML全文
查看全文 查看/发表评论 下载PDF阅读器 |
| 中文关键词 硝化 反硝化 硝态氮 溶解氧 环流曝气塔 |
| 英文关键词 nitrification denitrification NOx--N dissolved oxygen (DO) loop reactor |
|
| 中文摘要 |
| 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. |
| 英文摘要 |
| 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. |
