| 污水生物脱氮革新工艺中强温室气体N_2O的产生及微观机理 |
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| 引用本文： | 耿军军,王亚宜,张兆祥,任中佳,何维涛.污水生物脱氮革新工艺中强温室气体N_2O的产生及微观机理[J].环境科学学报,2010,30(9):1729-1738. |
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| 作者姓名： | 耿军军 王亚宜 张兆祥 任中佳 何维涛 |
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| 作者单位： | 同济大学污染控制与资源化研究国家重点实验室,上海,200092 |
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| 基金项目： | 国家教育部新世纪优秀人才支持计划(NCET-08-0404),上海市科技人才计划(09QA1406100)和全国优秀博士学位论文作者专项基金(200756) |
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| 摘 要： | N2O是一种强温室气体,而污水处理已被报道是导致N2O产生的潜在人为源之一,且主要发生在生物脱氮的硝化和反硝化过程.本文立足于当前的污水脱氮热点工艺,如短程硝化反硝化、同步硝化反硝化、厌氧氨氧化和反硝化除磷,介绍了这些新工艺的反应机理,描述了它们在非稳态运行过程N2O的释放特征以及溶解氧(Dissolved Oxygen,DO)、NO 2-、自由氨(Free Ammonia,FA)、自由亚硝酸(Free Nitrous Acid,FNA)和进水COD/N等关键因子的影响作用,并进一步从微生物学和生物化学角度剖析了各工艺脱氮过程产生N2O的可能原因.在全球积极应对气候变暖趋势的大背景下,探明污水脱氮工艺N2O的释放本质,提出有效的减排控制方法,对于防止环境污染问题由水环境转移到大气环境具有重要意义.
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| 关 键 词： | N2O 温室气体 短程硝化反硝化 同步硝化反硝化 厌氧氨氧化 反硝化除磷 |
| 收稿时间： | 1/21/2010 2:00:31 PM |
| 修稿时间： | 3/24/2010 3:08:54 PM |
N2O production and mechanism in recently developed biological nitrogen removal processes |
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| GENG Junjun,WANG Yayi,ZHANG Zhaoxiang,REN Zhongjia and HE Weitao.N2O production and mechanism in recently developed biological nitrogen removal processes[J].Acta Scientiae Circumstantiae,2010,30(9):1729-1738. |
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| Authors: | GENG Junjun WANG Yayi ZHANG Zhaoxiang REN Zhongjia and HE Weitao |
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| Institution: | State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092,State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092,State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092,State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092 and State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092 |
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| Abstract: | Nitrous oxide(N2O) is a serious greenhouse gas.Nitrification and denitrification in biological nitrogen removal processes are considered the major sources of N2 O in wastewater treatment.The mechanisms of the newer biological nitrogen removal processes,such as short-cut nitrification and denitrification,simultaneous nitrification and denitrification,anaerobic ammonium oxidation(ANAMMOX) and denitrifying phosphorus removal are illustrated in this work.Also,the N2O emissions under non-steady conditions for th... |
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| Keywords: | Nitrous oxide (N2O) greenhouse gas short-cut nitrification and denitrification simultaneous nitrification and denitrification ANAMMOX denitrifying phosphorus removal |
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