Distribution patterns of nitrogen micro-cycle functional genes and their quantitative coupling relationships with nitrogen transformation rates in a biotrickling filter
文献类型：期刊论文
| 作者 | Honglei Wang1,2; Guodong Ji2; Xueyuan Bai3 |
| 刊名 | Bioresource Technology
 |
| 出版日期 | 2016 |
| 期号 | 209页码:100-107 |
| 通讯作者邮箱 | jiguodong@pku.edu.cn |
| 关键词 | Biofilter Distribution pattern Nitrification DNRA Quantitative relationship |
| 通讯作者 | G. Ji |
| 英文摘要 | The present study explored the distribution patterns of nitrogen micro-cycle genes and the underlying mechanisms responsible for nitrogen transformation at the molecular level (genes) in a biotrickling filter (biofilter). The biofilter achieved high removal efficiencies for ammonium (NH4 +-N) (80–94%), whereas nitrate accumulated at different levels under a progressive NH4 +-N load. Combined analyses revealed the anammox, nas, napA, narG, nirS, and nxrA genes were the dominant enriched genes in different treatment layers. The presence of simultaneous nitrification, ammonium oxidation (anammox), and dissimilatory nitrate reduction to ammonium (DNRA) were the primary factors accounted for the robust NH4 +-N treatment performance. The presence of DNRA, nitrification, and denitrification was determined to be a pivotal pathway that contributed to the nitrate accumulation in the biofilter. The enrichment of functional genes at different depth gradients and the multi-path coupled cooperation at the functional gene level are conducive to achieving complete nitrogen removal. |
| WOS记录号 | WOS:000372833500013 |
| 源URL | [http://ir.iswc.ac.cn/handle/361005/7787]  |
| 专题 | 水土保持研究所_水保所科研产出--SCI_2016--SCI |
| 作者单位 | 1.Institute of Soil and Water Conservation, Northwest A&F University, Yangling 712100, Shaanxi, China 2.Key Laboratory of Water and Sediment Sciences, Ministry of Education, Department of Environmental Engineering, Peking University, Beijing 100871, China 3.State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, School of Environment, Northeast Normal University, Changchun 130117, China |
| 推荐引用方式 GB/T 7714 | Honglei Wang,Guodong Ji,Xueyuan Bai. Distribution patterns of nitrogen micro-cycle functional genes and their quantitative coupling relationships with nitrogen transformation rates in a biotrickling filter[J]. Bioresource Technology,2016(209):100-107. |
| APA | Honglei Wang,Guodong Ji,&Xueyuan Bai.(2016).Distribution patterns of nitrogen micro-cycle functional genes and their quantitative coupling relationships with nitrogen transformation rates in a biotrickling filter.Bioresource Technology(209),100-107. |
| MLA | Honglei Wang,et al."Distribution patterns of nitrogen micro-cycle functional genes and their quantitative coupling relationships with nitrogen transformation rates in a biotrickling filter".Bioresource Technology .209(2016):100-107. |
入库方式： OAI收割
来源：水土保持研究所
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