| 不同曝气密度对CANON工艺启动的影响 |
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| 引用本文： | 李冬,高雪健,张杰,曹正美,郭跃洲,李帅.不同曝气密度对CANON工艺启动的影响[J].环境科学,2019,40(2):829-836. |
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| 作者姓名： | 李冬 高雪健 张杰 曹正美 郭跃洲 李帅 |
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| 作者单位： | 北京工业大学水质科学与水环境恢复工程北京市重点实验室,北京,100124;北京工业大学水质科学与水环境恢复工程北京市重点实验室, 北京 100124;哈尔滨工业大学城市水资源与水环境国家重点实验室, 哈尔滨 150090 |
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| 基金项目： | 北京市青年拔尖团队项目（2014000026833TD02） |
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| 摘 要： | 在室温(25℃)下采用3组反应器R1、R2、R3,接种成熟厌氧氨氧化颗粒污泥,在总曝气量一定,曝停比为1的条件下,研究了不同曝气密度(3、6、12)对CANON工艺启动的影响.结果表明,R1、R2、R3分别经过32、29、23 d实现了CANON工艺成功的启动,较大的曝气密度有利于CANON工艺的启动; R1、R2、R3在周期实验中p H分别下降了0. 4、0. 55、1. 06,即在总曝气量一定的情况下,R3因其较大的曝气密度和合适的时间间隔,更有利于抑制NOB活性,使得系统对DO的利用率更高,提高了系统的脱氮性能;通过脱氮路径分析可得,系统中存在着ANA和SNA两种脱氮路径,SNA所占比重分别为19. 3%、24. 5%、33. 6%,随着曝气密度的提高,SNA贡献逐渐增大.
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| 关 键 词： | 曝停比 曝气密度 脱氮路径 同时亚硝化/厌氧氨氧化(SNA) 交替亚硝化/厌氧氨氧化(ANA) |
| 收稿时间： | 2018/7/12 0:00:00 |
| 修稿时间： | 2018/7/31 0:00:00 |
Effect of Aeration Density on Start-up of CANON Process |
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| LI Dong,GAO Xue-jian,ZHANG Jie,CAO Zheng-mei,GUO Yue-zhou and LI Shuai.Effect of Aeration Density on Start-up of CANON Process[J].Chinese Journal of Environmental Science,2019,40(2):829-836. |
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| Authors: | LI Dong GAO Xue-jian ZHANG Jie CAO Zheng-mei GUO Yue-zhou and LI Shuai |
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| Institution: | Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China,Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China,Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China;State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China,Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China,Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China and Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China;State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China |
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| Abstract: | |
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| Keywords: | aeration time and anaerobic time ratio aeration density denitrification pathway simultaneous nitritation/ANAMMOX (SNA) alternate nitritation-ANAMMOX (ANA) |
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