Carbon-to-nitrogen ratio influence on the performance of bioretention for wastewater treatment

doi:10.1007/s11356-019-07438-3

IR > 土木工程学院

	Carbon-to-nitrogen ratio influence on the performance of bioretention for wastewater treatment
	Wang, Yajun1,2 ; Singh, Rajendra Prasad 2,3; Geng, Chongchong 1; Fu, Dafang 2,3
	2020-05
发表期刊	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
ISSN	0944-1344
卷号	27 期号:15 页码:17652-17660
摘要	Bioretention cell (BRC), bioretention cell with microbial fuel cell (BRC-MFC), and an enhanced combined BRC-MFC system with bimetallic zero-valent iron (BRC-MFC-BZVI) were implemented in current study to treat the domestic wastewater. Nitrogen removal characteristics of three systems were investigated by adjusting influent carbon/nitrogen ratio (C/N ratio of 2.54-19.36). Results revealed that the nitrification and denitrification performances were mainly influenced by organic matter and system combination, which further affected nitrogen removal. When the influent C/N ratio was between 2 to 3, compared with BRC system, in BRC-MFC and BRC-MFC-BZVI system, chemical oxygen demand (COD), total nitrogen (TN), and ammonical nitrogen (NH4+-N) removal efficiencies were still reached to 83.04%, 61.06%, and 42.26% and 86.53%, 43.61%, and 50.99% respectively, which simultaneously achieved high-efficiency of organic matter and nitrogen removal. The efficient supply of electrons in the BRC-MFC and BRC-MFC-BZVI processes was the main reason to achieve profound denitrification removal under the condition of low C/N. Removal rates of nitrate (NO3--N) and nitrite (NO2--N) were relatively higher due to microbial-driven redox reactions caused by driving electrons to flow in the closed circuit of metal wire connection. Moreover, phylogenetic diversity of bacterial communities mainly induced the catalytic iron, which further enhanced biological nitrogen reduction. The maximum efficient removal of organic matter (OM), TN, and NH4 + -N were obtained in the BRC-MFC-BZVI system, which were 98.42% (C/N = 10.42), 55.61% (C/N = 4.16), and 61.13% (C/N = 4.16), respectively.
关键词	Bioretention Biogeobattery Nitrogen removal Carbon-to-nitrogen ratio Wastewater treatment
DOI	10.1007/s11356-019-07438-3
收录类别	SCI ; SCIE
语种	英语
资助项目	National Natural Science Foundation of China[51550110231] ; Key technology Program of Gansu province[JK2018-16] ; National Key Technologies RD Program[2015BAL02B05]
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:000520811800005
出版者	SPRINGER HEIDELBERG
来源库	WOS
引用统计	被引频次：12[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/76627
专题	土木工程学院
通讯作者	Singh, Rajendra Prasad; Fu, Dafang
作者单位	1.Lanzhou Univ Technol, Sch Civil Engn, 287 Langongping, Lanzhou 730050, Peoples R China; 2.Southeast Univ, Sch Civil Engn, 2 Sipailou, Nanjing 210096, Peoples R China; 3.Southeast Univ, Monash Univ, Joint Res Ctr Future Cities, Nanjing 210096, Peoples R China
第一作者单位	兰州理工大学
第一作者的第一单位	兰州理工大学
推荐引用方式 GB/T 7714	Wang, Yajun,Singh, Rajendra Prasad,Geng, Chongchong,et al. Carbon-to-nitrogen ratio influence on the performance of bioretention for wastewater treatment[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2020,27(15):17652-17660.
APA	Wang, Yajun,Singh, Rajendra Prasad,Geng, Chongchong,&Fu, Dafang.(2020).Carbon-to-nitrogen ratio influence on the performance of bioretention for wastewater treatment.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,27(15),17652-17660.
MLA	Wang, Yajun,et al."Carbon-to-nitrogen ratio influence on the performance of bioretention for wastewater treatment".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 27.15(2020):17652-17660.