DOI: 10.1016/j.watres.2018.05.006
Scopus记录号: 2-s2.0-85047176039
论文题名: Impact of long-term salinity exposure in anaerobic membrane bioreactors treating phenolic wastewater: Performance robustness and endured microbial community
作者: Muñoz Sierra J.D. ; Oosterkamp M.J. ; Wang W. ; Spanjers H. ; van Lier J.B.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 141 起始页码: 172
结束页码: 184
语种: 英语
英文关键词: AnMBR
; Microbial community
; Phenol
; Salinity
; Sodium
; Wastewater treatment
Scopus关键词: Bioactivity
; Bioconversion
; Bioreactors
; Microorganisms
; Particle size
; Phenols
; Sodium
; Wastewater treatment
; Anaerobic membrane bioreactor
; AnMBR
; Industrial wastewaters
; Microbial communities
; Microbial community composition
; Performance robustness
; Salinity
; Transmembrane pressures
; Chemicals removal (water treatment)
; methane
; phenol
; potassium
; sodium
; anoxic conditions
; bacterium
; bioactivity
; biomass
; bioreactor
; chemical oxygen demand
; community composition
; experimental study
; membrane
; methane
; microbial activity
; microbial community
; microbial ecology
; performance assessment
; phenol
; salinity
; sodium
; wastewater
; wastewater treatment
; Article
; biotransformation
; chemical oxygen demand
; Clostridium
; controlled study
; Methanobacterium
; Methanosaeta
; microbial community
; nonhuman
; particle size
; pressure
; priority journal
; salinity
; waste water management
; anaerobic growth
; archaeon
; bacterium
; biomass
; bioreactor
; biosynthesis
; chemistry
; classification
; industrial waste
; metabolism
; microbiology
; sewage
; waste water
; water pollutant
; Clostridium
; Methanobacterium
; Methanosaeta
; Pelotomaculum
; Anaerobiosis
; Archaea
; Bacteria
; Biomass
; Bioreactors
; Industrial Waste
; Methane
; Phenol
; Salinity
; Waste Disposal, Fluid
; Waste Water
; Water Pollutants, Chemical
英文摘要: Industrial wastewaters are becoming increasingly associated with extreme conditions such as the presence of refractory compounds and high salinity that adversely affect biomass retention or reduce biological activity. Hence, this study evaluated the impact of long-term salinity increase to 20 gNa+.L−1 on the bioconversion performance and microbial community composition in anaerobic membrane bioreactors treating phenolic wastewater. Phenol removal efficiency of up to 99.9% was achieved at 14 gNa+.L−1. Phenol conversion rates of 5.1 mgPh.gVSS−1.d−1, 4.7 mgPh.gVSS−1.d−1, and 11.7 mgPh.gVSS−1.d−1 were obtained at 16 gNa+.L−1,18 gNa+.L−1 and 20 gNa+.L−1, respectively. The AnMBR's performance was not affected by short-term step-wise salinity fluctuations of 2 gNa+.L−1 in the last phase of the experiment. It was also demonstrated in batch tests that the COD removal and methane production rate were higher at a K+:Na+ ratio of 0.05, indicating the importance of potassium to maintain the methanogenic activity. The salinity increase adversely affected the transmembrane pressure likely due to a particle size decrease from 185 μm at 14 gNa+.L−1 to 16 μm at 20 gNa+.L−1. Microbial community was dominated by bacteria belonging to the Clostridium genus and archaea by Methanobacterium and Methanosaeta genus. Syntrophic phenol degraders, such as Pelotomaculum genus were found to be increased when the maximum phenol conversion rate was attained at 20 gNa+.L−1. Overall, the observed robustness of the AnMBR performance indicated an endured microbial community to salinity changes in the range of the sodium concentrations applied. © 2018 The Authors Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112667
Appears in Collections: 气候减缓与适应
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作者单位: Section Sanitary Engineering, Department of Water Management, Delft University of Technology, Stevinweg 1, Delft, CN 2628, Netherlands; Department of Municipal Engineering, School of Civil and Hydraulic Engineering, Hefei University of Technology, Hefei, 230009, China
Recommended Citation:
Muñoz Sierra J.D.,Oosterkamp M.J.,Wang W.,et al. Impact of long-term salinity exposure in anaerobic membrane bioreactors treating phenolic wastewater: Performance robustness and endured microbial community[J]. Water Research,2018-01-01,141