气候变化领域集成服务门户(CCPortal): Enhanced nitrogen removal and quantitative molecular mechanisms in a pilot-scale multistage constructed wetlands planted with Myriophyllum aquaticum treating lagoon swine wastewater

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DOI	10.1016/j.ecoleng.2021.106433
	Enhanced nitrogen removal and quantitative molecular mechanisms in a pilot-scale multistage constructed wetlands planted with Myriophyllum aquaticum treating lagoon swine wastewater
	Wang, Lisha; He, Zhibin
通讯作者	He, ZB (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Ecohydrol Inland River Basin, Chinese Ecosyst Res Network,Linze Inland River Ba, Lanzhou 730000, Peoples R China.
发表日期	2022
ISSN	0925-8574
EISSN	1872-6992
卷号	174
英文摘要	The loss of N from aquaculture has caused eutrophication of freshwater systems. A multistage surface flow constructed wetland (SFCW) with Myriophylium (M.) aquaticum was engineered to treat lagoon swine wastewater from a large-scale hoggery. The mean removal efficiency of TN and NH4+-N were 9.92 and 7.64 g.m(-2).d(-1), respectively. The plant and sediment absorption were 1.89 and 1.96 g.m(-2).d(-1), respectively. The dynamics of the NO3--N concentrations and the abundance of nitrifiers (AOA and AOB) and denitrifiers (nirK and nirS) revealed strong nitrification and denitrification processes occurring in the SFCW, with a mean N removal of 6.07 gm(-2).d(-1). Moreover, AOB and nirK could be the main participants for nitrifiers and denitrifiers, respectively. The combination of quantitative polymerase chain reaction (qPCR), the potential nitrification rate (PNR), and the potential denitrification rate (PDR) showed that the microbial abundance and activity was significantly positively with N concentrations and water temperature (P < 0.05). Factors like PDR, DO, plant N uptake, sediment N adsorption, and pH may play an important role on N removal. These results showed that the M. aquaticum SFCW can efficiently treat swine wastewater and reduce the discharge of pollutants downstream in situ.
关键词	DENITRIFYING BACTERIA MASS-BALANCE DENITRIFICATION COMMUNITY AMMONIUM GROWTH NITRIFICATION VEGETATION ABUNDANCE SYSTEM
英文关键词	Swine wastewater; Nitrogen removal; Plant uptake; Sediment storage; Nitrification; Denitrification
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Engineering
WOS类目	Ecology ; Engineering, Environmental ; Environmental Sciences
WOS记录号	WOS:000714735500005
来源期刊	ECOLOGICAL ENGINEERING
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/253739
作者单位	[Wang, Lisha; He, Zhibin] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Ecohydrol Inland River Basin, Chinese Ecosyst Res Network,Linze Inland River Ba, Lanzhou 730000, Peoples R China; [Wang, Lisha] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wang, Lisha,He, Zhibin. Enhanced nitrogen removal and quantitative molecular mechanisms in a pilot-scale multistage constructed wetlands planted with Myriophyllum aquaticum treating lagoon swine wastewater[J]. 中国科学院西北生态环境资源研究院,2022,174.
APA	Wang, Lisha,&He, Zhibin.(2022).Enhanced nitrogen removal and quantitative molecular mechanisms in a pilot-scale multistage constructed wetlands planted with Myriophyllum aquaticum treating lagoon swine wastewater.ECOLOGICAL ENGINEERING,174.
MLA	Wang, Lisha,et al."Enhanced nitrogen removal and quantitative molecular mechanisms in a pilot-scale multistage constructed wetlands planted with Myriophyllum aquaticum treating lagoon swine wastewater".ECOLOGICAL ENGINEERING 174(2022).