Process design for wastewater treatment: catalytic ozonation of organic pollutants

Emerging micropollutants have been recently the target of interest for their potential harmful effects in the environment and their resistance to conventional water treatments. Catalytic ozonation is an advanced oxidation process consisting of the formation of highly reactive radicals from the decom...

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Bibliographic Details
Published in:Water science and technology 2013-01, Vol.68 (6), p.1377-1383
Main Authors: DERROUICHE, S, BOURDIN, D, GARCIA-BORDEJE, E, ROCHE, P, HOUSSAIS, B, MACHINAL, C, COSTE, M, RESTIVO, J, ORFAO, J. J. M, PEREIRA, M. F. R, MARCO, Y
Format: Article
Language:English
Subjects:
Acetamides - chemistry
Applied sciences
Atrazine
Atrazine - chemistry
Bezafibrate
Bezafibrate - chemistry
Carbon - chemistry
Carbon fibers
Catalysis
Catalysts
Ceramics - chemistry
Cordierite
Decomposition reactions
Erythromycin
Erythromycin - chemistry
Exact sciences and technology
General purification processes
Herbicides
Honeycomb construction
Metolachlor
Micropollutants
Mineralization
Nanofibers
Nanofibers - chemistry
Nonylphenol
Oxidants - chemistry
Oxidation
Oxidation process
Oxidation resistance
Ozonation
Ozone
Ozone - chemistry
Ozonization
Phenols - chemistry
Pollutants
Pollution
Powder
Waste Disposal, Fluid - methods
Wastewater
Wastewater treatment
Wastewaters
Water Pollutants, Chemical - chemistry
Water resistance
Water treatment
Water treatment and pollution
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Summary:Emerging micropollutants have been recently the target of interest for their potential harmful effects in the environment and their resistance to conventional water treatments. Catalytic ozonation is an advanced oxidation process consisting of the formation of highly reactive radicals from the decomposition of ozone promoted by a catalyst. Nanocarbon materials have been shown to be effective catalysts for this process, either in powder form or grown on the surface of a monolithic structure. In this work, carbon nanofibers grown on the surface of a cordierite honeycomb monolith are tested as catalyst for the ozonation of five selected micropollutants: atrazine (ATZ), bezafibrate, erythromycin, metolachlor, and nonylphenol. The process is tested both in laboratorial and real conditions. Later on, ATZ was selected as a target pollutant to further investigate the role of the catalytic material. It is shown that the inclusion of a catalyst improves the mineralization degree compared to single ozonation.
ISSN:0273-1223
1996-9732
DOI:10.2166/wst.2013.384