DOI: 10.1016/j.watres.2018.02.025
Scopus记录号: 2-s2.0-85042518570
论文题名: Enhancing anaerobic digestion and methane production of tetracycline wastewater in EGSB reactor with GAC/NZVI mediator
作者: Zhang Z. ; Gao P. ; Cheng J. ; Liu G. ; Zhang X. ; Feng Y.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 136 起始页码: 54
结束页码: 63
语种: 英语
英文关键词: Anaerobic digestion
; GAC/NZVI mediator
; Methane production
; Strengthening
; Tetracycline wastewater
Scopus关键词: Mass transfer
; Methane
; Microorganisms
; Strengthening (metal)
; Sulfur compounds
; Anaerobic systems
; COD and TOC removals
; Electrical conductivity
; Enhancement effects
; GAC/NZVI mediator
; Methane production
; Microbial community analysis
; Microbial community structures
; Anaerobic digestion
; biogas
; methane
; organic carbon
; polymer
; sulfide
; tetracycline
; biofuel
; methane
; tetracycline
; anaerobic digestion
; biogas
; diversity index
; methane
; microbial community
; pollutant removal
; sludge
; sulfide
; wastewater
; anaerobic digestion
; Article
; biofuel production
; chemical oxygen demand
; community structure
; concentration (parameters)
; electric conductivity
; methanogen
; methanogenesis
; microbial community
; priority journal
; sludge
; total organic carbon
; Treponema
; waste water
; anaerobic growth
; analysis
; archaeon
; bacterium
; bioreactor
; bioremediation
; chemistry
; metabolism
; microbiology
; procedures
; sewage
; waste water
; water pollutant
; Treponema
; Anaerobiosis
; Archaea
; Bacteria
; Biodegradation, Environmental
; Biofuels
; Bioreactors
; Methane
; Sewage
; Tetracycline
; Waste Disposal, Fluid
; Waste Water
; Water Pollutants, Chemical
英文摘要: Packing nano mediators into anaerobic system is an attractive technology to strengthen refractory pollutant removal and methane production from wastewater, but is limited by the drawbacks such as easy loss and poor mass transfer. In this study, GAC/NZVI mediator was added into EGSB reactor to investigate the enhancement effects and mechanism for anaerobic digestion of tetracycline wastewater and its impacts on microbial community structure. The results indicated that GAC/NZVI could enhance COD and TOC removal by 12.1% and 10.3%, while have no evident influence on tetracycline removal and sulfide production. The biogas production and methane content were increased by 21.2% and 26.9%, respectively. GAC/NZVI addition resulted in formation of densely packed aggregates, and evidently increased the electrical conductivity and EPS content in sludge. Fe content in sludge was 20.43% with the loss of only 5.4% during 34 d operation. Microbial community analysis revealed that GAC/NZVI addition could both increase the Chao 1 richness index and Shannon diversity index of bacteria and archaea. It was notable that total methanogens contents increased from 74.7% to 81.74% at genera level, resulting in higher methane production, while Treponema increase might promote the degradation of tetracycline and its metabolite, leading to higher COD removal. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112857
Appears in Collections: 气候减缓与适应
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作者单位: State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, No73, Huanghe Road, Nangang District, Harbin, 150090, China; School of Atmospheric Sciences, Sun Yat-sen University, 135 West Xingang Road, Guangzhou, Guangdong 510275, China; College of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China
Recommended Citation:
Zhang Z.,Gao P.,Cheng J.,et al. Enhancing anaerobic digestion and methane production of tetracycline wastewater in EGSB reactor with GAC/NZVI mediator[J]. Water Research,2018-01-01,136