DOI: 10.1016/j.watres.2018.08.003
Scopus记录号: 2-s2.0-85051010827
论文题名: Electrochemical filtration process for simultaneous removal of refractory organic and particulate contaminants from wastewater effluents
作者: Mameda N. ; Park H. ; Choo K.-H.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 144 起始页码: 699
结束页码: 708
语种: 英语
英文关键词: Composite electrocatalyst
; Electrochemical filtration
; Industrial wastewater
; Particulate matter
; Refractory organics
Scopus关键词: Chemical oxygen demand
; Chromophores
; Dissolved oxygen
; Effluents
; Electrocatalysis
; Electrocatalysts
; Filtration
; Metals
; Organic carbon
; Refractory materials
; Titanium dioxide
; Titanium oxides
; Wastewater treatment
; Water pollution
; Continuous flow reactors
; Development and testing
; Electrochemical reactions
; Filtration technologies
; Industrial wastewaters
; Organics
; Particulate Matter
; Transmembrane pressures
; Chemicals removal (water treatment)
; dioxane
; dissolved organic matter
; metal oxide
; organic compound
; catalyst
; chemical compound
; composite
; degradation
; electrochemical method
; electrode
; filtration
; organic compound
; particulate matter
; pollutant removal
; wastewater
; wastewater treatment
; water pollution
; Article
; catalyst
; chemical oxygen demand
; decolorization
; degradation
; effluent
; electric current
; electrochemical analysis
; filtration
; fouling control
; particulate matter
; pressure
; priority journal
; turbidity
; waste component removal
; waste water management
英文摘要: Versatile electrochemical reactions are effective for removing a wide range of water contaminants. This study focuses on the development and testing of bifunctional electrocatalytic filter anodes as reactive and separating media for the simultaneous removal of refractory dissolved organic and particulate contaminants from real wastewater effluents. The results show that the TiO2 particle interlayers formed between the Ti fiber support and the top composite metal oxide catalyst layers assist in reducing filter pores to an effective size range that enables removal of most particulates within the wastewater. The double-sheet design, which is a sandwich-structured module with an internal void space for permeate, prevents filter fouling, and transmembrane pressure can be maintained at a very low level of <5 kPa during batch and continuous flow reactor operations. Substantive and simultaneous removal of dissolved organics (e.g., chromophores, fluorophores, 1,4-dioxane, chemical oxygen demand, and total organic carbon) and particulate matter (i.e., turbidity) are achieved, although removal rates and efficacies differ depending on the electric current density applied. Decolorization and particulate rejection occur swiftly and immediately, but 1,4-dioxane degradation is relatively slow and quite time-dependent. Possible 1,4-dioxane degradation pathways during electrocatalysis are also proposed. Electrochemical filtration technology shows considerable promise for use in the next generation of advanced wastewater treatment solutions. © 2018 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112495
Appears in Collections: 气候减缓与适应
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作者单位: Advanced Institute of Water Industry, 80 Daehak-ro, Buk-gu, Daegu, 41566, South Korea; Department of Environmental Engineering, 80 Daehak-ro, Buk-gu, Daegu, 41566, South Korea
Recommended Citation:
Mameda N.,Park H.,Choo K.-H.. Electrochemical filtration process for simultaneous removal of refractory organic and particulate contaminants from wastewater effluents[J]. Water Research,2018-01-01,144