Nitrogen Advanced Treatment of Urban Sewage by Denitrification Deep-Bed Filter: Removal Performance and Metabolic Pathway | |
Huang, Xiao4,5; Xing, Yixiao5; Wang, Hongjie3,4; Dai, Zhongyi2; Chen, Tiantian1 | |
刊名 | FRONTIERS IN MICROBIOLOGY |
2022-01-26 | |
卷号 | 12页码:10 |
关键词 | advanced treatment denitrification deep-bed filter conditions optimization total nitrogen metabolic pathway |
DOI | 10.3389/fmicb.2021.811697 |
通讯作者 | Wang, Hongjie(whj1533@qq.com) ; Chen, Tiantian(chentian0819@163.com) |
英文摘要 | This study aimed to explore the performance of denitrification deep-bed filter (DN-DBF) to treat municipal sewage for meeting a more stringent discharge standard of total nitrogen (TN) (10.0 mg L-1). A lab-scale DN-DBF was conducted to optimize operation parameters and reveal the microbiological mechanism for TN removal. The results showed that more than 12.7% TN removal was obtained by adding methanol compared with sodium acetate. The effluent TN concentration reached 6.0-7.0 mg L-1 with the optimal influent carbon and nitrogen ratio (C/N) and hydraulic retention time (HRT) (3:1 and 0.25 h). For the nitrogen removal mechanism, Blastocatellaceae_Subgroup_4 and norank_o_JG30-KF-CM45 were dominant denitrification floras with an abundance of 6-10%. Though large TN was removed at the top layer of DN-DBF, microbial richness and diversity at the middle layer were higher than both ends. However, the relative abundance of nitrite reductase enzymes (EC1.7.2.1) gradually increases as the depth increases; conversely, the relative abundance of nitrous oxide reductase gradually decreased. |
资助项目 | National Natural Science Foundation of China[421078064] ; Project of Shenzhen Science and Technology Plan[KCXFZ202001011006362] ; Project of Shenzhen Science and Technology Plan[KJYY20180718094802190] ; Project of Shenzhen Science and Technology Plan[JCYJ20200109113006046] ; Project of China Municipal Engineering Central South Design and Research Institute (Theory and Application: High Efficiency, Energy Saving and Intelligent Biological Enhanced Denitrification Process) ; Doctor Program of Entrepreneurship and Innovation in Jiangsu Province[R2020SCB10] |
WOS研究方向 | Microbiology |
语种 | 英语 |
出版者 | FRONTIERS MEDIA SA |
WOS记录号 | WOS:000752837300001 |
内容类型 | 期刊论文 |
源URL | [http://ir.qdio.ac.cn/handle/337002/177797] |
专题 | 海洋研究所_海洋生态与环境科学重点实验室 |
通讯作者 | Wang, Hongjie; Chen, Tiantian |
作者单位 | 1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao, Peoples R China 2.China Municipal Engn Cent South Design & Res Inst, Wuhan, Peoples R China 3.Harbin Inst Technol, Sch Environm, State Key Lab Urban Water Resource & Environm, Harbin, Peoples R China 4.Harbin Inst Technol, Shenzhen Key Lab Water Resource Utilizat & Enviro, Sch Civil & Environm Engn, Shenzhen, Peoples R China 5.Nanjing Univ Informat Sci & Technol, Sch Environm Sci & Engn, Collaborat Innovat Ctr Atmospher Environm & Equip, Jiangsu Key Lab Atmospher Environm Monitoring & P, Nanjing, Peoples R China |
推荐引用方式 GB/T 7714 | Huang, Xiao,Xing, Yixiao,Wang, Hongjie,et al. Nitrogen Advanced Treatment of Urban Sewage by Denitrification Deep-Bed Filter: Removal Performance and Metabolic Pathway[J]. FRONTIERS IN MICROBIOLOGY,2022,12:10. |
APA | Huang, Xiao,Xing, Yixiao,Wang, Hongjie,Dai, Zhongyi,&Chen, Tiantian.(2022).Nitrogen Advanced Treatment of Urban Sewage by Denitrification Deep-Bed Filter: Removal Performance and Metabolic Pathway.FRONTIERS IN MICROBIOLOGY,12,10. |
MLA | Huang, Xiao,et al."Nitrogen Advanced Treatment of Urban Sewage by Denitrification Deep-Bed Filter: Removal Performance and Metabolic Pathway".FRONTIERS IN MICROBIOLOGY 12(2022):10. |
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