DOI: 10.1016/j.watres.2018.01.068
Scopus记录号: 2-s2.0-85041687461
论文题名: Enhanced adsorption of ionizable antibiotics on activated carbon fiber under electrochemical assistance in continuous-flow modes
作者: Wang S. ; Li X. ; Zhao H. ; Quan X. ; Chen S. ; Yu H.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 134 起始页码: 162
结束页码: 169
语种: 英语
英文关键词: Ciprofloxacin
; Clarithromycin
; Continuous-flow mode
; Electro-assisted adsorption
; Ionizable antibiotics
; Sulfadimethoxine
Scopus关键词: Activated carbon
; Activated carbon treatment
; Adsorption
; Carbon fibers
; Efficiency
; Effluent treatment
; Effluents
; Surface waters
; Adsorption capacities
; Ciprofloxacin
; Clarithromycin
; Continuous flows
; Effluent concentrations
; Enhanced adsorptions
; Removal efficiencies
; Sulfadimethoxine
; Antibiotics
; activated carbon
; antibiotic agent
; carbon fiber
; ciprofloxacin
; clarithromycin
; sulfadimethoxine
; surface water
; antiinfective agent
; carbon
; carbon fiber
; activated carbon
; adsorption
; antibiotics
; carbon fiber
; concentration (composition)
; efficiency measurement
; electrochemical method
; pollutant removal
; recovery
; adsorption
; Article
; concentration (parameters)
; effluent
; electrochemical analysis
; flow
; priority journal
; static electricity
; waste component removal
; water treatment
; adsorption
; chemistry
; electrochemical analysis
; procedures
; water management
; water pollutant
; Adsorption
; Anti-Bacterial Agents
; Carbon
; Ciprofloxacin
; Clarithromycin
; Electrochemical Techniques
; Sulfadimethoxine
; Water Pollutants, Chemical
; Water Purification
英文摘要: Ionizable antibiotics have attracted serious concerns because of their variable dissociation forms and thereby rendering unique toxicity and microorganism resistance. Developing an efficient and environmentally friendly method for removing these micropollutants from environmental media remains very challenging. Here, electro-assisted adsorption onto activated carbon fiber in continuous-flow mode was used to remove three ionizable antibiotics, sulfadimethoxine (SDM), ciprofloxacin (CIP), and clarithromycin (CLA), from water. Benefiting from strengthened electrostatic interactions, the adsorption capacities for the target antibiotics (10 mg/L) in flow mode (70.9–202.2 mg/g) increased by ∼5 times under a potential of 1.0 V (SDM) or −1.0 V (CIP and CLA) relative to those of open circuit (OC) adsorption. Meanwhile, effluent concentration decreased from >100 μg/L to 9.6 μg/L with removal efficiency increasing from 99.0% to 99.9%. Moreover, high recovery efficiency of ACF up to 96.35 ± 0.65% was achieved by imposing a reverse potential (−1.0 V) relative to that used for SDM adsorption. In addition, trace levels of antibiotics (364–580 ng/L) in surface water could be removed effectively to achieve low effluent concentration (0.4–1.2 ng/L) and high removal efficiency (99.9%) upon treating up to ∼1560 bed volumes (BVs), demonstrating the potential of electro-assisted adsorption for practical application in water treatment. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112927
Appears in Collections: 气候减缓与适应
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作者单位: Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, China; College of Environmental Science and Engineering, Liaoning Technical University, Fuxin, 123000, China
Recommended Citation:
Wang S.,Li X.,Zhao H.,et al. Enhanced adsorption of ionizable antibiotics on activated carbon fiber under electrochemical assistance in continuous-flow modes[J]. Water Research,2018-01-01,134