DOI: 10.1016/j.watres.2018.02.061
Scopus记录号: 2-s2.0-85042654017
论文题名: Roles of an easily biodegradable co-substrate in enhancing tetracycline treatment in an intimately coupled photocatalytic-biological reactor
作者: Xiong H. ; Dong S. ; Zhang J. ; Zhou D. ; Rittmann B.E.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 136 起始页码: 75
结束页码: 83
语种: 英语
英文关键词: Biodegradation
; Biotransformation
; Co-substrate
; Microbial community
; Mineralization
; Photocatalysis
Scopus关键词: Antibiotics
; Biodegradation
; Biofilms
; Microorganisms
; Photocatalysis
; Refractory materials
; Biotransformation
; Biotransformation intermediate
; Co-substrate
; Macroporous carrier
; Metabolic activity
; Microbial communities
; Mineralization
; Respiratory activity
; Mineralogy
; acetic acid
; aromatic compound
; oxidoreductase
; tetracycline
; acetic acid
; antiinfective agent
; tetracycline
; antibiotics
; biodegradation
; biofilm
; biomineralization
; bioreactor
; biotransformation
; catalysis
; metabolism
; microbial community
; antibiotic therapy
; Article
; biodegradation
; biomass
; biotransformation
; breathing
; cell death
; chemical analysis
; chemical structure
; clinical effectiveness
; clinical evaluation
; electron
; energy resource
; metabolic activity assay
; microbial community
; mineralization
; molecular evolution
; nonhuman
; photocatalysis
; priority journal
; bacterium
; bioreactor
; bioremediation
; isolation and purification
; metabolism
; microbiology
; photochemistry
; Acetates
; Anti-Bacterial Agents
; Bacteria
; Biodegradation, Environmental
; Bioreactors
; Biotransformation
; Photochemical Processes
; Tetracycline
英文摘要: Intimately coupled photocatalysis and biodegradation (ICPB) was realized in a macroporous carrier in which a photocatalyst was present on the outer surface, while a biofilm accumulated inside the carrier. In ICPB, photocatalysis products are rapidly biodegraded by a protected biofilm, leading to mineralization of the refractory organics, such as antibiotics. However, mineralization in ICPB could be compromised if the photocatalysis products remain refractory or are inhibitory. To address this, we attempted to increase metabolic activity by providing a readily biodegradable co-substrate (acetate) that could act as a source of energy and electrons to improve biotransformation and mineralization of the refractory antibiotic tetracycline (TCH). When we added acetate during ICPB of TCH, TCH removal increased by ∼5%, mineralization increased by ∼20%, and almost all photocatalysis products disappeared. Acetate addition also led to an increase in active biomass, an increase in the biomass's respiratory activity, and evolution of the microbial community to having more members able to biodegrade photocatalysis and biotransformation intermediates. Thus, providing an easily biodegradable co-substrate was an effective means for enhancing TCH removal and mineralization with the ICPB technology. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112851
Appears in Collections: 气候减缓与适应
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作者单位: School of Environment, Northeast Normal University, Changchun, 130117, China; School of Chemistry and Environmental Engineering, Jiujiang University, Jiujiang, 332005, China; Engineering Lab for Water Pollution Control and Resources Recovery, Northeast Normal University, Changchun, Jilin Province 130117, China; Key Lab of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun, 130021, China; Biodesign Swette Center for Environmental Biotechnology, Arizona State UniversityAZ 85287-5701, United States
Recommended Citation:
Xiong H.,Dong S.,Zhang J.,et al. Roles of an easily biodegradable co-substrate in enhancing tetracycline treatment in an intimately coupled photocatalytic-biological reactor[J]. Water Research,2018-01-01,136