Nitrogen removal from low-C/N-ratio wastewater using a three-dimensional bioelectrical reactor

doi:10.1016/j.jwpe.2023.103835

	Nitrogen removal from low-C/N-ratio wastewater using a three-dimensional bioelectrical reactor
	Jin, Chunhong 1; Tang, Qi 1,2; Gao, Yanbo 3; Xu, Hengdu 1; Zhang, Lei 3; Sheng, Yanqing1
发表期刊	JOURNAL OF WATER PROCESS ENGINEERING
ISSN	2214-7144
	2023-07-01
卷号	53 页码:10
关键词	Nitrate Denitrification Three-dimensional bioelectrical reactor Wastewater treatment plant effluent
DOI	10.1016/j.jwpe.2023.103835
通讯作者	Sheng, Yanqing(yqsheng@yic.ac.cn)
英文摘要	A three-dimensional bioelectrical reactor (3D-BER) with a treatment capacity of 1 m(3)/d was constructed for the high-level denitrification of wastewater treatment plant effluent. The results indicated that with activated carbon and light ceramsite (volume ratio was 1:1) as the particle electrodes and applied current of 5 A, the removal efficiency of NO3- -N in the 3D-BER was 78.99 +/- 4.10 %, the selectivity of nitrogen was 83.48 +/- 4.20 %, and the energy consumption was 1.20 +/- 0.13 kWh/m3. Nitrate and sulfate concentrations decreased rapidly based on the samples withdrawn at a reactor height of 47.5 cm, and they both decreased to their lowest values at a reactor height of 75 cm, indicating that nitrate reduction took place preferentially in the 3D-BER. Proteobacteria and Campilobacterota were selectively enriched in the 3D-BER compared with the inoculated sludge, and the microbial community composition of 3D-BER at 75 cm was significantly different from that at other heights. Sulfurimonas (20.96 %), Sulfuricurvum (5.32 %), Thauera (4.40 %) and Denitratisoma (3.87 %) were the dominant bacteria at 75 cm in the 3D-BER, and the relative abundance of bacteria with denitrifying functions was the highest at 75 cm. Fieldwork demonstrated the feasibility and sustainability of using a 3D-BER for nitrogen removal.
资助机构	Key Project of Shandong Provincial Natural Science Foundation ; Chinese Academy of Sciences
收录类别	SCI
语种	英语
关键词[WOS]	DISSIMILATORY NITRATE REDUCTION ; AUTOTROPHIC DENITRIFICATION ; PHOSPHORUS REMOVAL ; ELECTRODE ; COMMUNITIES ; OXIDATION ; EFFICIENT ; SULFATE
研究领域[WOS]	Engineering ; Water Resources
WOS记录号	WOS:001001727800001
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/33313
专题	中国科学院海岸带环境过程与生态修复重点实验室中国科学院海岸带环境过程与生态修复重点实验室_海岸带环境工程技术研究与发展中心
通讯作者	Sheng, Yanqing
作者单位	1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc, Yantai 264003, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Yantai Xinan River Wastewater Treatment Co Ltd, Yantai 264043, Peoples R China
推荐引用方式 GB/T 7714	Jin, Chunhong,Tang, Qi,Gao, Yanbo,et al. Nitrogen removal from low-C/N-ratio wastewater using a three-dimensional bioelectrical reactor[J]. JOURNAL OF WATER PROCESS ENGINEERING,2023,53:10.
APA	Jin, Chunhong,Tang, Qi,Gao, Yanbo,Xu, Hengdu,Zhang, Lei,&Sheng, Yanqing.(2023).Nitrogen removal from low-C/N-ratio wastewater using a three-dimensional bioelectrical reactor.JOURNAL OF WATER PROCESS ENGINEERING,53,10.
MLA	Jin, Chunhong,et al."Nitrogen removal from low-C/N-ratio wastewater using a three-dimensional bioelectrical reactor".JOURNAL OF WATER PROCESS ENGINEERING 53(2023):10.