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Removal and fate of silver nanoparticles in lab-scale vertical flow constructed wetland
Bao, Shaopan1; Liang, Lei1,2; Huang, Jiaolong1,2; Liu, Xiawei1,2; Tang, Wei1; Yi, Jia3; Fang, Tao1,2
2019
Source PublicationCHEMOSPHERE
ISSN0045-6535
Volume214Pages:203-209
AbstractEngineered nanomaterials (ENMs) are increasingly produced and consequently released into the environment. Therefore, there is a strong need to find a valid way to treat the ENMs pollution. In this study, the removal efficiencies of silver nanoparticles (AgNPs) from synthetic wastewater in lab-scale vertical flow constructed wetland (CW) systems with different operations (plant, hydraulic loading rates, bed depth) were investigated. Moreover, the environmental fate and impacts of AgNPs in CWs were also investigated. The results showed that CWs with plants were more effective in removing AgNPs than the unplanted CWs. Hydraulic loading had a significant effect on the performance of CWs in treating AgNPs, however, the influence of bed depth was negligible. AgNPs stopped in the CWs were mainly resided in the wetland substrate, indicating the main mechanism of AgNPs removal in CWs was through substrate adsorption. Although plant biomass, root activity, peroxidase activity of leaves and biofilm biomass were significantly altered following exposure to AgNPs (P < 0.05), CWs maintained constant high efficiency (63.2-93.8%) in removing AgNPs from wastewater during a continuous 2-month running. Overall, this paper suggests the feasibility and high-efficiency of using CWs to handle AgNPs contamination. (C) 2018 Elsevier Ltd. All rights reserved.
SubtypeArticle
KeywordEnvironmental Fate Hydraulic Loading Rates Removal Efficiency Substrate Adsorption Wetland Plant
DOI10.1016/j.chemosphere.2018.09.110
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Indexed BySCI
Funding OrganizationNational Natural Science Foundation of China(21477159) ; National Natural Science Foundation of China(21477159) ; National Natural Science Foundation of China(21477159) ; National Natural Science Foundation of China(21477159)
Language英语
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS KeywordWASTE-WATER TREATMENT ; ENGINEERED NANOPARTICLES ; POLLUTANT REMOVAL ; PLANT-GROWTH ; TOXICITY ; SYSTEM ; ACCUMULATION ; COMMUNITIES ; PERFORMANCE ; NANOSILVER
WOS IDWOS:000449891300024
Funding OrganizationNational Natural Science Foundation of China(21477159) ; National Natural Science Foundation of China(21477159) ; National Natural Science Foundation of China(21477159) ; National Natural Science Foundation of China(21477159)
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/56074
Collection水环境工程研究中心
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Hubei, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Hubei Prov Ctr Dis Control & Prevent, Wuhan 430072, Hubei, Peoples R China
Recommended Citation
GB/T 7714
Bao, Shaopan,Liang, Lei,Huang, Jiaolong,et al. Removal and fate of silver nanoparticles in lab-scale vertical flow constructed wetland[J]. CHEMOSPHERE,2019,214:203-209.
APA Bao, Shaopan.,Liang, Lei.,Huang, Jiaolong.,Liu, Xiawei.,Tang, Wei.,...&Fang, Tao.(2019).Removal and fate of silver nanoparticles in lab-scale vertical flow constructed wetland.CHEMOSPHERE,214,203-209.
MLA Bao, Shaopan,et al."Removal and fate of silver nanoparticles in lab-scale vertical flow constructed wetland".CHEMOSPHERE 214(2019):203-209.
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