DOI: 10.1016/j.watres.2017.10.072
Scopus记录号: 2-s2.0-85032926298
论文题名: Electrolytic and electro-irradiated technologies for the removal of chloramphenicol in synthetic urine with diamond anodes
作者: Cotillas S. ; Lacasa E. ; Sáez C. ; Cañizares P. ; Rodrigo M.A.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 128 起始页码: 383
结束页码: 392
语种: 英语
英文关键词: Chloramphenicol
; Diamond
; Electrolysis
; Photoelectrolysis
; Sonoelectrolysis
; Urine
Scopus关键词: Body fluids
; Chlorine compounds
; Current density
; Diamonds
; Electrochemical oxidation
; Electrolysis
; Inorganic compounds
; Pollution
; Synthetic diamonds
; Ultrasonics
; Urea
; Antagonistic effects
; Chloramphenicol
; Electrolytic treatment
; High current densities
; High frequency ultrasounds
; Photoelectrolysis
; Sonoelectrolysis
; Urine
; Antibiotics
; ammonia
; chloramine derivative
; chloramphenicol
; chloride
; diamond
; hypochlorite
; nitrogen derivative
; perchlorate
; uric acid
; antiinfective agent
; chloramphenicol
; diamond
; electrolyte
; oxidizing agent
; chemical compound
; degradation
; diamond
; drug
; effluent
; electrochemical method
; electrode
; electrokinesis
; irradiation
; oxidation
; photolysis
; pollutant removal
; technological change
; ultrasonics
; urine
; Article
; current density
; degradation
; electrochemical analysis
; electrolysis
; oxidation
; priority journal
; ultrasound
; ultraviolet radiation
; urine
; waste component removal
; comparative study
; electrode
; electrolysis
; evaluation study
; hospital
; isolation and purification
; oxidation reduction reaction
; procedures
; sewage
; technology
; urine
; Anti-Bacterial Agents
; Chloramphenicol
; Chlorides
; Diamond
; Electrodes
; Electrolysis
; Electrolytes
; Hospitals
; Oxidants
; Oxidation-Reduction
; Perchlorates
; Technology
; Urine
; Waste Disposal, Fluid
英文摘要: Hospital effluents are a major source for the occurrence of pharmaceuticals in the environment. In this work, the treatment of synthetic urine polluted with chloramphenicol is studied by using three different conductive-diamond electrochemical oxidation technologies: electrolysis (single electrolysis), photoelectrolysis and high-frequency ultrasound sonoelectrolysis. These technologies were evaluated at 10 and 100 mA cm−2. Results shows that not only chloramphenicol but also other organics contained in urine are completely mineralized by electrolysis. Ammonium is the main inorganic nitrogen species formed and it can react with the electrogenerated hypochlorite, favouring the formation of chloramines. These species prevent the potential formation of perchlorate from chlorides contained in urine at low current densities (10 mA cm−2) and delay its occurrence at high current densities (100 mA cm−2). On the other hand, irradiation of ultraviolet (UV) light or high-frequency ultrasound (US) produce changes in the performance of the electrolytic treatment, but these changes are not as important as in other cases of study shown in the literature. Nonetheless, the effect of electroirradiated technologies seems to be higher and depends on the type of pollutant when working at low current densities (10 mA cm−2). It is positive in the case of the degradation of the antibiotic and the uric acid and negative in the case of urea where there is a clear antagonistic effect. Production of oxidants increases with the current density although in lower ratio than expected. These results are of great importance because clearly point out that electrolytic technologies can be applied to minimize the diffuse pollution associated to pharmaceuticals before discharge into municipal sewers. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/113159
Appears in Collections: 气候减缓与适应
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作者单位: Department of Chemical Engineering, School of Industrial Engineering, University of Castilla-La Mancha, Albacete, 02071, Spain; Department of Chemical Engineering, Faculty of Chemical Sciences and Technologies, University of Castilla-La Mancha, Ciudad Real, 13005, Spain
Recommended Citation:
Cotillas S.,Lacasa E.,Sáez C.,et al. Electrolytic and electro-irradiated technologies for the removal of chloramphenicol in synthetic urine with diamond anodes[J]. Water Research,2018-01-01,128