| 间歇恒定/梯度曝气对SNAD工艺启动的影响 |
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| 引用本文： | 李冬,刘志诚,徐贵达,李帅,张杰. 间歇恒定/梯度曝气对SNAD工艺启动的影响[J]. 环境科学, 2019, 40(12): 5438-5445 |
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| 作者姓名： | 李冬 刘志诚 徐贵达 李帅 张杰 |
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| 作者单位： | 北京工业大学建筑工程学院,水质科学与水环境恢复工程北京市重点实验室,北京100124;北京工业大学建筑工程学院,水质科学与水环境恢复工程北京市重点实验室,北京100124;哈尔滨工业大学环境学院,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： | 北京高校卓越青年科学家计划项目（BJJWZYJH01201910005019） |
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| 摘 要： | 本实验在室温(20℃±3℃)下用2组反应器R1和R~2接种厌氧氨氧化污泥,分别采用间歇恒定曝气和间歇梯度曝气方式启动SNAD工艺,研究了两种不同间歇曝气方式对SNAD工艺启动的影响.结果表明,启动过程中,R~2在各阶段恢复稳定所需的时间更短,SNAD的实际启动速度更快;启动成功后R1和R~2的特征值Δρ(TN)/Δρ(NO_3--N)分别达到6. 46和10. 34,R~2的NOB抑制效果更好;通过周期监测,发现R~2的周期DO波动稳定,R1的周期DO整体逐渐提高、周期末达到0. 5 mg·L~(-1)以上,分析认为R~2中稳定的低DO环境促进了NOB抑制;启动成功后R1和R~2反应器内PN/PS值分别达到2. 745和2. 823,颗粒粒径分别达到365. 8μm和402. 1μm,R~2的颗粒稳定性和沉降性更强,粒径增长更快.
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| 关 键 词： | 同步短程硝化、厌氧氨氧化耦合反硝化(SNAD) 间歇恒定曝气 间歇梯度曝气 亚硝酸盐氧化菌(NOB) |
| 收稿时间： | 2019-06-01 |
| 修稿时间： | 2019-06-25 |
Effects of Different Intermittent Aeration Strategies on the Start-up of SNAD Process |
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| LI Dong,LIU Zhi-cheng,XU Gui-d,LI Shuai and ZHANG Jie. Effects of Different Intermittent Aeration Strategies on the Start-up of SNAD Process[J]. Chinese Journal of Environmental Science, 2019, 40(12): 5438-5445 |
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| Authors: | LI Dong LIU Zhi-cheng XU Gui-d LI Shuai ZHANG Jie |
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| Affiliation: | Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, China,Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, China,Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, China,Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, China;State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China and Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, China;State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China |
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| Abstract: | |
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| Keywords: | simultaneous partial nitrification,ANAMMOX,and denitrification (SNAD) intermittent constant aeration intermittent gradient aeration nitrite oxidizing bacteria(NOB) |
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