Using rice straw-augmented ecological floating beds to enhance nitrogen removal in carbon-limited wastewater

doi:10.1016/j.biortech.2024.130785

	Cai, Xixi 1,2; Li, Jianying 1,2; Wu, Haoping 1,2; Yang, Siyu 1,2; You, Yi 1,2; Li, Dunhai 3; Xing, Wei 4; Zou, Chunping 1,2; Guo, Xiaoyu 5; Li, Jibing 6,7; Qin, Hongjie 1,2
	Using rice straw-augmented ecological floating beds to enhance nitrogen removal in carbon-limited wastewater
Source Publication	BIORESOURCE TECHNOLOGY
ISSN	0960-8524
	2024-06-01
Volume	402 Pages:8
DOI	10.1016/j.biortech.2024.130785
Language	英语
WOS Research Area	Agriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels
Abstract	Agricultural biomass used as solid carbon substrates in ecological floating beds (EFBs) has been proven to be applicable in nitrogen removal for carbon-limited wastewater treatment. However, the subtle interactions among plants, rhizosphere microorganisms, and supplementary carbon sources have not been thoroughly studied. This study combined rice straw mats with different aquatic macrophytes in EFBs to investigate denitrification efficiency in carbon-limited eutrophic waters. Results showed that rice straw significantly enhanced the nitrogen removal efficiency of EFBs, while enriching nitrogen-fixing and denitrifying bacteria (such as Rhizobium, Rubrivivax, and Rhodobacter, etc.). Additionally, during the denitrification process in EFBs, rice straw can release humic acid-like fraction as electron donors to support the metabolic activities of microorganisms, while aquatic macrophytes provide a more diverse range of dissolved organic matters, facilitating a sustainable denitrification process. These findings help to understand the synergistic effect of denitrification processes within wetland ecosystems using agricultural biomass.
Keyword	Microbial community Denitrification Low -carbon sewage Aquatic macrophytes
WOS ID	WOS:001239662800001
Indexed By	SCI
Citation statistics
Document Type	期刊论文
Identifier	http://ir.gig.ac.cn/handle/344008/78457
Collection	有机地球化学国家重点实验室
Corresponding Author	Qin, Hongjie
Affiliation	1.Guangdong Acad Agr Sci, Environm Hort Res Inst, Guangdong Key Lab Ornamental Plant Germplasm Innov, Guangzhou 510640, Peoples R China 2.Minist Agr & Rural Affairs, Key Lab Urban Agr South China, Guangzhou 510640, Peoples R China 3.Chinese Acad Sci, Inst Hydrobiol, Key Lab Algal Biol, Wuhan 430072, Peoples R China 4.Chinese Acad Sci, Key Lab Aquat Bot & Watershed Ecol, Wuhan Bot Garden, Wuhan 430074, Peoples R China 5.Hainan Univ, Key Lab Environm Toxicol, Haikou 570228, Peoples R China 6.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R China 7.Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Hong Kong Macao Joint Lab Environm Pollu, Guangzhou 510640, Peoples R China
Recommended Citation GB/T 7714	Cai, Xixi,Li, Jianying,Wu, Haoping,et al. Using rice straw-augmented ecological floating beds to enhance nitrogen removal in carbon-limited wastewater[J]. BIORESOURCE TECHNOLOGY,2024,402:8.
APA	Cai, Xixi.,Li, Jianying.,Wu, Haoping.,Yang, Siyu.,You, Yi.,...&Qin, Hongjie.(2024).Using rice straw-augmented ecological floating beds to enhance nitrogen removal in carbon-limited wastewater.BIORESOURCE TECHNOLOGY,402,8.
MLA	Cai, Xixi,et al."Using rice straw-augmented ecological floating beds to enhance nitrogen removal in carbon-limited wastewater".BIORESOURCE TECHNOLOGY 402(2024):8.

Files in This Item:
There are no files associated with this item.

If you have any objections to this item, please fill out the form below and the administrator will contact you as soon as possible.
Content:
Email：	*
Institution:
Verification Code:	Refresh

Any comments and suggestions are welcomed.
Title:	*
Content:
Email：	*
Verification Code:	Refresh

中国科学院广州地球化学研究所机构知识库