DOI: 10.1016/j.watres.2018.04.054
Scopus记录号: 2-s2.0-85046169615
论文题名: Effect of ΜM Fe addition, mild heat and solar UV on sulfate radical-mediated inactivation of bacteria, viruses, and micropollutant degradation in water
作者: Marjanovic M. ; Giannakis S. ; Grandjean D. ; de Alencastro L.F. ; Pulgarin C.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 140 起始页码: 220
结束页码: 231
语种: 英语
英文关键词: Advanced oxidation process (AOPs)
; E. coli
; Emerging contaminants
; MS2 bacteriophage
; Photo-fenton
; Sulfate radicals
Scopus关键词: Bacteriophages
; Biodegradation
; Chemical activation
; Developing countries
; Escherichia coli
; Iron oxides
; Oxidation
; Potable water
; Sodium compounds
; Sulfur compounds
; Water pollution
; Advanced oxidation process
; E. coli
; Emerging contaminant
; Photo-Fenton
; Sulfate radicals
; Image processing
; cerium
; cobalt
; drinking water
; ferrous gluconate
; ferrous ion
; ferrous sulfate
; iron oxide
; manganese
; radical
; sulfate
; bacteriophage
; bacterium
; coliform bacterium
; developing world
; drinking water
; iron oxide
; oxidation
; pathogen
; radical
; solar power
; virus
; Article
; bacterium
; degradation
; Enterobacteria phage MS2
; Escherichia coli K 12
; heat
; limit of detection
; multiple reaction monitoring
; nonhuman
; priority journal
; quantum yield
; solar energy
; ultraviolet radiation
; virus
; waste component removal
; water contamination
; water pollutant
; Bacteria (microorganisms)
英文摘要: In this work, solar disinfection (SODIS) was enhanced by moderate addition of Fe and sodium peroxydisulfate (PDS), under solar light. A systematic assessment of the activating factors was performed, firstly isolated, then in pairs and concluded in the combined Fe/heat/solar UV-PDS activation process. Solar light was the most effective (single) activator, and its combination with Fe and heat (double activation) yielded high level of synergies (up to S = 2.13). The triple activation was able to reduce the bacterial load up to 6-log in less than 1 h, similarly to the photo-Fenton process done in comparison (SODIS alone: >5 h). Fe-oxides were suitable activators of PDS under the same conditions while the presence of organic matter enhanced bacterial inactivation by the triple activated PDS process. The degradation of a (selected) mixture of micropollutants (i.e. drugs, pesticides) was also achieved in similar order of magnitude, and faster than the photo-Fenton process. Finally, the removal of a viral pathogen indicator (MS2 bacteriophage) was attained at minute-range residence times. The aforementioned facts indicate the suitability of the mild, combined process, as a potential SODIS enhancement, producing safe drinking water for sunny and especially for developing countries. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112716
Appears in Collections: 气候减缓与适应
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作者单位: School of Basic Sciences (SB), Institute of Chemical Science and Engineering (ISIC), Group of Advanced Oxidation Processes (GPAO), École Polytechnique Fédérale de Lausanne (EPFL), Station 6, Lausanne, CH-1015, Switzerland; ENAC, IIE, Central Environmental Laboratory, Ecole Polytechnique Fédérale de Lausanne (EPFL), Station 2, Lausanne, 1015, Switzerland
Recommended Citation:
Marjanovic M.,Giannakis S.,Grandjean D.,et al. Effect of ΜM Fe addition, mild heat and solar UV on sulfate radical-mediated inactivation of bacteria, viruses, and micropollutant degradation in water[J]. Water Research,2018-01-01,140