DOI: 10.1016/j.watres.2018.12.011
Scopus记录号: 2-s2.0-85059159134
论文题名: Heterogeneous Fenton reaction for elimination of Acid Yellow 36 in both fluidized-bed and stirred-tank reactors: Computational fluid dynamics versus experiments
作者: Farshchi M.E. ; Aghdasinia H. ; Khataee A.
刊名: Water Research
ISSN: 431354
出版年: 2019
起始页码: 203
结束页码: 214
语种: 英语
英文关键词: Computational fluid dynamics
; Dye degradation
; Fluidized-bed reactor
; Heterogeneous Fenton process
; Modeling and simulation
; Stirred-tank reactor
Scopus关键词: Chemical reactors
; Fluidized bed furnaces
; Fluidized bed process
; Fluidized beds
; Free radicals
; Mixing
; Oxidation
; Pyrites
; Supersaturation
; Tanks (containers)
; Turbulence
; Wastewater treatment
; Dye degradation
; Fluidized bed reactors
; Heterogeneous fenton
; Model and simulation
; Stirred tank reactors
; Computational fluid dynamics
; acid yellow 36
; dye
; free radical
; hydroxyl radical
; pyrite
; unclassified drug
; chemical reaction
; computational fluid dynamics
; degradation
; dye
; heterogeneity
; modeling
; oxidation
; performance assessment
; pollutant removal
; reaction rate
; simulation
; wastewater treatment
; Article
; catalyst
; computational fluid dynamics
; controlled study
; Fenton reaction
; Fourier transform infrared spectroscopy
; intermethod comparison
; kinetics
; pH
; priority journal
; scanning electron microscopy
; simulation
; waste water management
; X ray diffraction
英文摘要: Heterogeneous Fenton process is a kind of advanced oxidation processes (AOPs) that is significant for wastewater treatment. In the first part of this study, acid yellow 36 (AY36) degradation process has occurred in two kinds of reactors: fluidized-bed and stirred-tank reactors. Performances of these two semi-pilot reactors are compared by evaluating the removal ratio of the dye and pH changes during the process. Pyrite has been used as a heterogeneous catalyst. For obtaining the characteristics of pyrite, XRD, SEM, and FT-IR analysis have been carried out. In the second part of this study, a modified computational fluid dynamics (CFD) method has been utilized to solve the momentum and mass balances for heterogeneous Fenton process in both reactors. In AOPs, free radicals are reactive and have a short lifetime, so that turbulence mixing would be a limiting factor for the reactions that radicals are involved. By introducing a new parameter, named turbulence mixing rate, as a reaction rate for reactive species like hydroxyl radicals, the results of removal ratio and pH changes during the process showed a good agreement between the experiments and the CFD simulations, compared with not including the mixing rate in the CFD simulations (conventional kinetic modeling). In addition, the results revealed the high performance of the fluidized-bed reactor for this process in both experiments and CFD simulation. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/122054
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Chemical Engineering, Faculty of Chemical and Petroleum Engineering, University of Tabriz, Tabriz, 51666-16471, Iran; Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, 51666-16471, Iran
Recommended Citation:
Farshchi M.E.,Aghdasinia H.,Khataee A.. Heterogeneous Fenton reaction for elimination of Acid Yellow 36 in both fluidized-bed and stirred-tank reactors: Computational fluid dynamics versus experiments[J]. Water Research,2019-01-01