Significant N2O emission from a high rate granular reactor for completely autotrophic nitrogen removal over nitrite
文献类型：期刊论文
| 作者 | Fang, Fang1; Li, Hanxiang1; Jiang, Xin1; Deng, Xiongwen1; Yan, Peng1 ; Guo, Jinsong1; Chen, Youpeng1; Yang, Jixiang1,2
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| 刊名 | JOURNAL OF ENVIRONMENTAL MANAGEMENT
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| 出版日期 | 2020-07-15 |
| 卷号 | 266页码:8 |
| 关键词 | Nitrous oxide CANON Mathematical modeling Granular sludge Hydroxylamine oxidation |
| ISSN号 | 0301-4797 |
| DOI | 10.1016/j.jenvman.2020.110586 |
| 通讯作者 | Fang, Fang(fangfangcq@cqu.edu.cn) ; Yang, Jixiang(jixiang504@hotmail.com) |
| 英文摘要 | Expanded granular sludge bed (EGSB) reactors were rarely applied for complete ammonium removal over nitrite. In this study, a high ammonium loading rate of 3677 mg N/L/d was achieved in an EGSB reactor. Approximately 5.5-8.5% of influent ammonium was converted to nitrous oxide (N2O) that is a potent greenhouse gas. Moreover, the percentage increased linearly with the increase in ammonium load. A model well matched the reactor dynamics. The model indicated that hydroxylamine (NH2OH) oxidation contributed to over 40% of produced N2O, and denitrification by ammonium oxidizing bacteria contributed to N2O emission significantly. Furthermore, the model suggests that a low oxygen concentration can result in a low N2O emission at the cost of a slightly low ammonium removal rate while influent organic matter play a minor role in reducing N2O emission. This study shows that EGSB reactors are effective in ammonium removal. In addition, the emission of N2O is significant. |
| 资助项目 | National Natural Science Foundation of China[51878091] ; National Natural Science Foundation of China[51278509] ; Youth Innovation Promotion Association[2019375] ; National Key Research and Development Program of China[2019YFD1100501] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000531083400032 |
| 出版者 | ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD |
| 源URL | [http://119.78.100.138/handle/2HOD01W0/11010]  |
| 专题 | 中国科学院重庆绿色智能技术研究院 |
| 通讯作者 | Fang, Fang; Yang, Jixiang |
| 作者单位 | 1.Chongqing Univ, Coll Environm & Ecol, 174 Shazhengjie, Chongqing 400045, Peoples R China 2.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fang, Fang,Li, Hanxiang,Jiang, Xin,et al. Significant N2O emission from a high rate granular reactor for completely autotrophic nitrogen removal over nitrite[J]. JOURNAL OF ENVIRONMENTAL MANAGEMENT,2020,266:8. |
| APA | Fang, Fang.,Li, Hanxiang.,Jiang, Xin.,Deng, Xiongwen.,Yan, Peng.,...&Yang, Jixiang.(2020).Significant N2O emission from a high rate granular reactor for completely autotrophic nitrogen removal over nitrite.JOURNAL OF ENVIRONMENTAL MANAGEMENT,266,8. |
| MLA | Fang, Fang,et al."Significant N2O emission from a high rate granular reactor for completely autotrophic nitrogen removal over nitrite".JOURNAL OF ENVIRONMENTAL MANAGEMENT 266(2020):8. |
入库方式： OAI收割
来源：重庆绿色智能技术研究院
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