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Comparative study of microbial community structure in integrated vertical-flow constructed wetlands for treatment of domestic and nitrified wastewaters
Chang, Jun-jun1,2; Wu, Su-qing1,3; Liang, Kang1,4; Wu, Zhenbin1; Liang, Wei1
2015-03-01
Source PublicationENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
ISSN0944-1344
Volume22Issue:5Pages:3518-3527
AbstractMicrobial processes play a vital important role in the removal of contaminants in constructed wetland (CW). However, the microbial physiology and community structure can be influenced by environmental conditions. In this study, four pilot-scale integrated vertical-flow constructed wetlands (IVCWs) were employed to treat domestic and nitrified wastewaters. The microbial properties, along with their response to wastewater quality characteristics and seasonal variation, were determined. The results showed higher Shannon-Weiner diversity (H) and evenness (E) index of fatty acids (FAs), and relative abundances of signature FAs in down-flow cells and in the systems fed with domestic wastewater (DW). The relative abundances of fungi and gram-negative and aerobic bacteria were greater in up-flow cells. The dominant anaerobic bacteria found in most cells might be accounted for the prevailing anaerobic environment within the wetland beds, which could mean that the system fed with nitrified wastewater (NW) should perform better in nitrogen removal. The redundancy analysis (RDA) showed that pollutant concentrations, especially organic matter, influence the FA compositions greatly, and the most significant difference of microbial community structures was detected in down-flow cells fed with DW and up-flow ones with NW. The branched FAs, which could be used to represent anaerobic bacteria, were observed in down-flow cells treating DW and had a significant positive correlation with chemical oxygen demand (COD) concentration, probably suggesting the important role of anaerobic bacteria in organic matter degradation in the IVCWs. Seasonal variation, however, did not greatly influence the microbial community structure in the IVCWs.
SubtypeArticle
KeywordIntegrated Vertical-flow Constructed Wetlands (Ivcws) Fatty Acidmethyl Ester (Fame) Signature Fas Microbial Community Domesticwastewater (Dw) Nitrified Wastewater (Nw) Water Quality Characteristics
DOI10.1007/s11356-014-3594-0
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Indexed BySCI ; ISTP
Language英语
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000350331300031
WOS KeywordFATTY-ACID PATTERNS ; WASTE-WATER ; TREATMENT PERFORMANCE ; EUTROPHIC BAYS ; SOIL ; BIOMASS ; LIPOPOLYSACCHARIDES ; PHOSPHOLIPIDS ; SEDIMENTS ; PROFILES
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Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/27113
Collection水环境工程研究中心_期刊论文
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2.Yunnan Univ, Res Inst Engn & Technol, Kunming 650091, Peoples R China
3.Jiangxi Acad Environm Sci, Nanchang 330029, Peoples R China
4.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Chang, Jun-jun,Wu, Su-qing,Liang, Kang,et al. Comparative study of microbial community structure in integrated vertical-flow constructed wetlands for treatment of domestic and nitrified wastewaters[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2015,22(5):3518-3527.
APA Chang, Jun-jun,Wu, Su-qing,Liang, Kang,Wu, Zhenbin,&Liang, Wei.(2015).Comparative study of microbial community structure in integrated vertical-flow constructed wetlands for treatment of domestic and nitrified wastewaters.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,22(5),3518-3527.
MLA Chang, Jun-jun,et al."Comparative study of microbial community structure in integrated vertical-flow constructed wetlands for treatment of domestic and nitrified wastewaters".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 22.5(2015):3518-3527.
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