| 温度对厌氧氨氧化反应器脱氮效能稳定性的影响 |
| |
| 引用本文： | 李祥,黄勇,郑宇慧,袁怡,李大鹏,潘杨,张春蕾.温度对厌氧氨氧化反应器脱氮效能稳定性的影响[J].环境科学,2012,33(4):1288-1292. |
| |
| 作者姓名： | 李祥 黄勇 郑宇慧 袁怡 李大鹏 潘杨 张春蕾 |
| |
| 作者单位： | 苏州科技学院环境科学与工程学院,苏州 215011;苏州科技学院环境科学与工程学院,苏州 215011;苏州科技学院环境科学与工程学院,苏州 215011;苏州科技学院环境科学与工程学院,苏州 215011; 同济大学环境科学与工程学院,上海 200092;苏州科技学院环境科学与工程学院,苏州 215011;苏州科技学院环境科学与工程学院,苏州 215011;苏州科技学院环境科学与工程学院,苏州 215011 |
| |
| 基金项目： | 江苏省环境科学与工程重点实验室开放课题项目(ZD081202);国家自然科学基金项目(51008202);江苏省环境工程重点学科建设项目(A0030803) |
| |
| 摘 要： | 采用厌氧氨氧化反应器,通过氮去除速率的测定,研究了不同温度变化方式对反应器脱氮效能稳定性的影响.结果表明,温度在26～37℃之间变化时,氮去除速率在1.51～1.84 kg.(m3.d)-1之间波动.其中逐渐降温的氮去除速率变化幅度4.35%,比阶梯降温(氮去除速率变化幅度9.03%)更有利于厌氧氨氧化反应器脱氮效能的稳定.当温度低于20℃时,反应器氮去除会快速下降.特别当温度低于15℃时,反应器氮去除速率下降至0.55 kg.(m3.d)-1,同时出现大量的NO2--N积累,从而抑制厌氧氨氧化反应.对其进行线性拟合发现,低于20℃时温度与氮去除速率具有明显的线性关系.根据温度变化对反应器氮去除速率稳定性的影响,提出了厌氧氨氧化反应器快速启动及实现低温高效运行的控温策略.
|
| 关 键 词： | 温度 氮去除速率 稳定性 厌氧氨氧化 策略 |
| 收稿时间： | 2011/6/14 0:00:00 |
| 修稿时间： | 2011/8/31 0:00:00 |
Effect of Temperature on Stability of Nitrogen Removal in the ANAMMOX Reactor |
| |
| LI Xiang,HUANG Yong,ZHENG Yu-hui,YUAN Yi,LI Da-peng,PAN Yang and ZHANG Chun-lei.Effect of Temperature on Stability of Nitrogen Removal in the ANAMMOX Reactor[J].Chinese Journal of Environmental Science,2012,33(4):1288-1292. |
| |
| Authors: | LI Xiang HUANG Yong ZHENG Yu-hui YUAN Yi LI Da-peng PAN Yang and ZHANG Chun-lei |
| |
| Institution: | School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215011, China;School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215011, China;School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215011, China;School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215011, China; College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China;School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215011, China;School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215011, China;School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215011, China |
| |
| Abstract: | The effect of temperature on stability of nitrogen removal efficiency was investigated in an ANANMMOX reactor by measuring the nitrogen removal rate. The results showed that the nitrogen removal rate changed between 1.51 kg x (m3 x d)(-1) and 1.84 kg x (m3 x d)(-1) when the temperature was between 26 degrees C and 37 degrees C. Compared with gradually degrading temperature (nitrogen removal rate variation of amplitude 9.03%), the ladder degrading temperature was more advantageous on the stability of nitrogen removal efficiency. Nitrogen removal rate variation of amplitude was 4.35%. The nitrogen removal rate dropped quickly, when the temperature was below 20 degrees C. Moreover, a large number of NO2(-) -N accumulated in the ANAMMOX process, when temperature is below 15 degrees C in the reactor. A strong relationship between temperature and nitrogen removal rate was found, when the temperature was below 20 degrees C. Based on the effect of temperature on nitrogen removal rate, the strategy about temperature control was proposed to achieve the fast start-up and high efficiency of nitrogen removal under low temperature for the ANANMMOX reactors. |
| |
| Keywords: | temperature nitrogen removal rate stability ANAMMOX strategy |
| 本文献已被 CNKI PubMed 等数据库收录！ |
| 点击此处可从《环境科学》浏览原始摘要信息 |
| 点击此处可从《环境科学》下载免费的PDF全文 |
|
