Removal of organic contaminants in bleached kraft effluents using heterogeneous photocatalysis and ozone

The ability of a dual ozone-photocatalysis treatment to accelerate biodegradation of organic pollutants in bleached kraft mill effluents was investigated. Reductions in total organic carbon (TOC), chemical oxygen demand (COD), adsorbable organic halogen (AOX) and colour were achieved by the sequenti...

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Bibliographic Details
Published in:Tappi journal 2001-06, Vol.84 (6), p.63-63
Main Authors: TORRADES, Francesc, PERAL, Jose, PEREZ, Montserrat, DOMENECH, Xavier, GARCIA HORTAL, Jose Antonio, RIVA, Maria Carme
Format: Article
Language:English
Subjects:
Applied sciences
Biodegradation
Bleached pulp
Chemical oxygen demand
Exact sciences and technology
Impurities
Industrial wastewaters
Kraft paper
Ozonization
Photocatalysis
Pollution
Thermal effluents
Wastewaters
Water treatment and pollution
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Summary:The ability of a dual ozone-photocatalysis treatment to accelerate biodegradation of organic pollutants in bleached kraft mill effluents was investigated. Reductions in total organic carbon (TOC), chemical oxygen demand (COD), adsorbable organic halogen (AOX) and colour were achieved by the sequential treatments of photocatalysis and ozonation. The simultaneous application of photocatalysis and ozonation had a synergistic effect and produced similar results in less than half the reaction time.
ISSN:0734-1415