DOI: 10.1016/j.watres.2018.12.064
Scopus记录号: 2-s2.0-85060073838
论文题名: Biotransformation of organic micropollutants by anaerobic sludge enzymes
作者: Gonzalez-Gil L. ; Krah D. ; Ghattas A.-K. ; Carballa M. ; Wick A. ; Helmholz L. ; Lema J.M. ; Ternes T.A.
刊名: Water Research
ISSN: 431354
出版年: 2019
起始页码: 202
结束页码: 214
语种: 英语
英文关键词: Anaerobic digestion
; Degradation
; Enzymatic pathways
; Enzymatic transformation
; Pharmaceuticals
; Sewage treatment plant
Scopus关键词: Amides
; Bioconversion
; Biological water treatment
; Degradation
; Drug products
; Enzymes
; Sewage treatment plants
; Soaps (detergents)
; Viruses
; Wastewater treatment
; Anaerobic biotransformation
; Enzymatic pathways
; Enzymatic transformation
; Hydroxylated metabolites
; Organic micro-pollutants
; Transformation products
; Wastewater treatment plants
; Wastewater treatment system
; Anaerobic digestion
; acesulfame
; atenolol
; citalopram
; clarithromycin
; detergent
; diclofenac
; erythromycin
; iopamidol
; membrane enzyme
; paracetamol
; sulfamethoxazole
; terbutryn
; anaerobic digestion
; biotransformation
; digestibility
; drug
; enzyme activity
; organic pollutant
; research work
; sewage treatment
; sludge
; wastewater treatment plant
; anaerobic sludge
; Article
; biotransformation
; cell respiration
; controlled study
; electrospray
; enzyme activity
; microbial community
; multiple reaction monitoring
; nucleophilicity
; organic pollution
; oxidation reduction reaction
; priority journal
; suspended particulate matter
; waste water management
; waste water treatment plant
英文摘要: Biotransformation of organic micropollutants (OMPs) in wastewater treatment plants ultimately depends on the enzymatic activities developed in each biological process. However, few research efforts have been made to clarify and identify the role of enzymes on the removal of OMPs, which is an essential knowledge to determine the biotransformation potential of treatment technologies. Therefore, the purpose of the present study was to investigate the enzymatic transformation of 35 OMPs under anaerobic conditions, which have been even less studied than aerobic systems. Initially, 13 OMPs were identified to be significantly biotransformed (>20%) by anaerobic sludge obtained from a full-scale anaerobic digester, predestining them as potential targets of anaerobic enzymes. Native enzymes were extracted from this anaerobic sludge to perform transformation assays with the OMPs. In addition, the effect of detergents to recover membrane enzymes, as well as the effects of cofactors and inhibitors to promote and suppress specific enzymatic activities were evaluated. In total, it was possible to recover enzymatic activities towards 10 out of these 13 target OMPs (acetyl-sulfamethoxazole and its transformation product sulfamethoxazole, acetaminophen, atenolol, clarithromycin, citalopram, climbazole, erythromycin, and terbutryn, venlafaxine) as well as towards 8 non-target OMPs (diclofenac, iopamidol, acyclovir, acesulfame, and 4 different hydroxylated metabolites of carbamazepine). Some enzymatic activities likely involved in the anaerobic biotransformation of these OMPs were identified. Thereby, this study is a starting point to unravel the still enigmatic biotransformation of OMPs in wastewater treatment systems. © 2019 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/122021
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Chemical Engineering, School of Engineering, Universidade de Santiago de Compostela, Rúa Lope Gómez de Marzoa, Santiago de Compostela, E-15782, Spain; Federal Institute of Hydrology (BfG), Am Mainzer Tor 1, Koblenz, D-56068, Germany
Recommended Citation:
Gonzalez-Gil L.,Krah D.,Ghattas A.-K.,et al. Biotransformation of organic micropollutants by anaerobic sludge enzymes[J]. Water Research,2019-01-01