Homogeneous and heterogeneous advanced oxidation of a bleaching effluent from the pulp and paper industry

The degradation of phenolic and polyphenolic compounds present in a bleaching ECF effluent for different advanced oxidation systems is described. Photocatalysis with O2/ZnO/UV, O2/TiO2/UV were demonstrated to be the best sytems to oxidize the effluent in a short period of time. The homogeneous syste...

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Bibliographic Details
Published in:Water science and technology 1997, Vol.35 (4), p.273-278
Main Authors: Mansilla, Héctor D., Cristina Yeber, M., Freer, Juanita, Rodríguez, Jaime, Baeza, Jaime
Format: Article
Language:English
Subjects:
Advanced oxidation process
Bleaching
Chemical oxygen demand
Colour
Effluents
kraft bleaching effluent
Organic matter
Oxidation
ozone
Phenolic compounds
Phenols
photocatalysis
Polyphenols
Pulp
Pulp & paper industry
pulp and paper
Titanium dioxide
Ultraviolet radiation
UV light
Zinc oxide
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Summary:The degradation of phenolic and polyphenolic compounds present in a bleaching ECF effluent for different advanced oxidation systems is described. Photocatalysis with O2/ZnO/UV, O2/TiO2/UV were demonstrated to be the best sytems to oxidize the effluent in a short period of time. The homogeneous systems O3 and O3/UV also degrade the organic matter but at a lower extent considering the same time of reaction. Reactions were monitored by color changes, pH, COD and BOD.
ISSN:0273-1223
1996-9732
DOI:10.1016/S0273-1223(97)00035-8