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Evaluation of an intermittent-aeration constructed wetland for removing residual organics and nutrients from secondary effluent: Performance and microbial analysis

文献类型：期刊论文

作者Li, Jia1,3,4; Zheng, Lei1,2; Ye, Changbing4; Ni, Baosen4; Wang, Xingzhu1; Liu, Hong1
刊名BIORESOURCE TECHNOLOGY
出版日期2021-06-01
卷号329页码:10
关键词Oxygen vertical loss Intermittent-aeration constructed wetland Nutrients removal Microbial community structure
ISSN号0960-8524
DOI10.1016/j.biortech.2021.124897
通讯作者Liu, Hong(liuhong@cigit.ac.cn)
英文摘要This study proposed a novel intermittent-aeration constructed wetland (CW) to resolve the vertical loss of oxygen in tertiary treatment. Compared to the non-aeration CW, the intermittent-aeration CW presented a better removal performance (90.8% chemical oxygen demand, 94.3% ammonia nitrogen, 91.5% total nitrogen and 94.1% total phosphorus) at a dissolved oxygen of 3 mg L-1 and hydraulic retention time of 2 days. It was mainly attributed to the higher abundance and greater diversity of bacterial community due to the oxygen supply. Highthroughput sequencing indicated that high abundance of phyla Proteobacteria (35.34%) and Bacteroidetes (18.20%) in intermittent-aeration CW were responsible for simultaneous nitrogen and phosphorus removal. Besides, the dominant families Burkholderiaceae (11.16%), Microtrichales (6.88%) and Saprospiraceae (6.50%) were also detected, which was vital to hydrolyze and utilize complex organic matters. In general, oxygen supply upregulated the metabolism pathways of amino acid and carbohydrate, bringing a greater biodegradation potential for removing contaminants.
资助项目National Natural Science Foundation of China[51525805] ; National Natural Science Foundation of China[51568066] ; Yunnan Province Local Undergraduate Universities (Part) Joint Special Funds for Basic Research[2018FH001-009] ; Young Program of Science and Technology Agency of Yunnan Province[2017FD161] ; Faculty of Engineering and Information Technology (FEIT) , University of Technology Sydney (UTS)
WOS研究方向Agriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels
语种英语
WOS记录号WOS:000634858900009
出版者ELSEVIER SCI LTD
源URL[http://119.78.100.138/handle/2HOD01W0/13273]  
专题中国科学院重庆绿色智能技术研究院
通讯作者Liu, Hong
作者单位1.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China
2.Univ Technol Sydney, Ctr Technol Water & Wastewater, Ultimo, NSW 2007, Australia
3.Chongqing Jiaotong Univ, Minist Educ, Sch River & Ocean Engn, Key Lab Hydraul & Waterway Engn, Chongqing 400074, Peoples R China
4.Yuxi Normal Univ, Res Ctr Pollut Control & Ecol Restorat, Yuxi 653100, Yunnan, Peoples R China
推荐引用方式
GB/T 7714		 Li, Jia,Zheng, Lei,Ye, Changbing,et al. Evaluation of an intermittent-aeration constructed wetland for removing residual organics and nutrients from secondary effluent: Performance and microbial analysis[J]. BIORESOURCE TECHNOLOGY,2021,329:10.
APA Li, Jia,Zheng, Lei,Ye, Changbing,Ni, Baosen,Wang, Xingzhu,&Liu, Hong.(2021).Evaluation of an intermittent-aeration constructed wetland for removing residual organics and nutrients from secondary effluent: Performance and microbial analysis.BIORESOURCE TECHNOLOGY,329,10.
MLA Li, Jia,et al."Evaluation of an intermittent-aeration constructed wetland for removing residual organics and nutrients from secondary effluent: Performance and microbial analysis".BIORESOURCE TECHNOLOGY 329(2021):10.

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来源：重庆绿色智能技术研究院

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