DOI: 10.1016/j.watres.2018.11.075
Scopus记录号: 2-s2.0-85057612701
论文题名: Bioenergy generation and degradation pathway of phenanthrene and anthracene in a constructed wetland-microbial fuel cell with an anode amended with nZVI
作者: Wang J. ; Song X. ; Li Q. ; Bai H. ; Zhu C. ; Weng B. ; Yan D. ; Bai J.
刊名: Water Research
ISSN: 431354
出版年: 2019
起始页码: 340
结束页码: 348
语种: 英语
英文关键词: Bacterial community distribution
; Bioelectricity generation
; Nitrogen removal
; Phytoextraction and phytotransformation
; Polycyclic aromatic hydrocarbons
Scopus关键词: Anodes
; Anthracene
; Bacteria
; Bacteriology
; Biodegradation
; Bioelectric phenomena
; Electrophysiology
; Hydrocarbons
; Mineral oils
; Nitrogen removal
; Polycyclic aromatic hydrocarbons
; Refractory materials
; Soil pollution control
; Wetlands
; Aquatic environments
; Bacterial community
; Constructed wetlands
; Degradation pathways
; Phytotransformation
; Polycyclic aromatic hydrocarbons (PAHS)
; Refractory organic compounds
; Removal efficiencies
; Microbial fuel cells
; anthracene
; catalase
; nitrogen
; organic compound
; phenanthrene
; polycyclic aromatic hydrocarbon
; bacterium
; biodegradation
; bioenergy
; bioreactor
; biotransformation
; concentration (composition)
; constructed wetland
; degradation
; electricity generation
; electrode
; fuel cell
; iron nanoparticle
; microbial activity
; microbial community
; operations technology
; PAH
; phenanthrene
; phytoremediation
; pollutant removal
; power generation
; adsorption
; Article
; Bacillus
; biodegradation
; bioenergy
; constructed wetland
; Desulfovibrio
; extraction
; Gram negative bacterium
; high throughput sequencing
; Lactococcus
; microbial community
; microbial fuel cell
; nonhuman
; Paludibacter
; priority journal
; Typha
; Typha orientalis
; waste water management
; water pollutant
; Animalia
; Bacillus (bacterium)
; Bacteria (microorganisms)
; Desulfovibrio
; Lactococcus
; Paludibacter
英文摘要: The frequent occurrence of polycyclic aromatic hydrocarbons (PAHs) in aquatic environments is of great concern because of their teratogenicity, toxicity, carcinogenicity, and mutagenicity to plants, animals and human beings. In this study the bioelectricity generation, biodegradation, phytoextraction and substrate adsorption of phenanthrene and anthracene in a constructed wetland-microbial fuel cell (CW-MFC) were investigated with an anode electrode amended with or without biochar-nZVI. During a 182-day operation period, the average removal efficiency for phenanthrene and anthracene ranged from 88.5% to 96.4%. The concentration of phenanthrene in roots, stems and laminas of T. orientalis was 14.9, 3.9 and 2.3 ng g −1 respectively, while that of anthracene was 22.2, 3.1 and 1.3 ng g −1 , respectively. In addition, the application of nZVI was conducive to bioelectricity generation and organic compound degradation in the CW-MFC reactor. The distribution of the bacterial community indicated that the relative abundance of Bacillus, Paludibacter, Desulfovibrio and Lactococcus with a degradation capability for refractory organics was significantly increased. Especially the genus Bacillus for excreting catalase became more abundant. The results of our study indicate how to promote bioelectricity generation and biodegradation of refractory organic compounds in a CW-MFC by improving the culture conditions for bacteria. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/122093
Appears in Collections: 气候变化事实与影响
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作者单位: School of Environment, Jinan University, Guangzhou, Guangdong 510632, China; College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, China; China Institute of Water Resources and Hydropower Research, Beijing, 100038, China; School of Environment, Beijing Normal University, Beijing, 100875, China
Recommended Citation:
Wang J.,Song X.,Li Q.,et al. Bioenergy generation and degradation pathway of phenanthrene and anthracene in a constructed wetland-microbial fuel cell with an anode amended with nZVI[J]. Water Research,2019-01-01