DOI: 10.1016/j.watres.2018.06.033
Scopus记录号: 2-s2.0-85053135797
论文题名: Insights into the variability of microbial community composition and micropollutant degradation in diverse biological wastewater treatment systems
作者: Wolff D. ; Krah D. ; Dötsch A. ; Ghattas A.-K. ; Wick A. ; Ternes T.A.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 143 起始页码: 313
结束页码: 324
语种: 英语
英文关键词: 16S rRNA amplicon sequencing
; Activated sludge
; Microbial community
; Micropollutants
; Sequencing batch reactor (SBR)
; Wastewater
Scopus关键词: Activated sludge process
; Batch reactors
; Biodiversity
; Biological water treatment
; Effluents
; Microorganisms
; RNA
; Wastewater
; Activated sludge
; Amplicons
; Microbial communities
; Micropollutants
; Sequencing batch reactors
; Wastewater treatment
; activated sludge
; biodiversity
; bioindicator
; bioreactor
; community composition
; effluent
; microbial community
; operations technology
; pollutant removal
; wastewater treatment
英文摘要: The biological potential of conventional wastewater treatment plants to remove micropollutants mainly depends on process conditions and the predominant microbial community. To explore this dependence and to connect the occurrence of genera with operating conditions, five pilot-scale reactors with different process conditions were combined into two reactor cascades and fed with the effluent of the primary clarifier of a municipal WWTP. All reactors and the WWTP were analyzed for the removal of 33 micropollutants by LC-MS/MS and the presence of the microbial community using 16S rRNA gene sequencing. The overall removal of the micropollutants was slightly improved (ca. 20%) by the reactor cascades in comparison to the WWTP while certain compounds such as diatrizoate, venlafaxine or diclofenac showed an enhanced removal (ca. 70% in one or both cascades). To explore the diverse bacteria in more detail, the general community was divided into a core and a specialized community. Despite their profoundly different operating parameters (especially redox conditions), the different treatments share a core community consisted of 143 genera (9% of the overall community). Furthermore, the alpha- and beta-biodiversity as well as the occurrence of several genera belonging to the specialized microbial community could be linked to the prevalent process conditions of the individual treatments. Members of the specialized community also correlated with the removal of certain groups of micropollutants. Hence, the comparison of the specialized community with micropollutant removal and operating conditions via correlation analysis is a valuable tool for an extended evaluation of prevalent process conditions. Based on an extended data set this approach could also be used to identify organisms as indicators for operating conditions which are beneficial for an improved removal of specific micropollutants. © 2018 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112558
Appears in Collections: 气候减缓与适应
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作者单位: Federal Institute of Hydrology (BfG), Am Mainzer Tor 1, Koblenz, D-56068, Germany; Karlsruhe Institute of Technology (KIT), Institute of Functional Interfaces (IFG), Hermann-von-Helmholtz-Platz 1, Eggenstein-Leopoldshafen, D-76344, Germany; Max Rubner-Institut (MRI), Federal Research Institute of Nutrition and Food, Haid-und-Neu-Straße 9, Karlsruhe, D-76131, Germany
Recommended Citation:
Wolff D.,Krah D.,Dötsch A.,et al. Insights into the variability of microbial community composition and micropollutant degradation in diverse biological wastewater treatment systems[J]. Water Research,2018-01-01,143