Degradation of chlorophenols by means of advanced oxidation processes: a general review

Advanced oxidation processes (AOPs) constitute a promising technology for the treatment of wastewaters containing non-easily removable organic compounds. Chlorophenols (CPs) are a group of special interest due to their high toxicity and low biodegradability. Data concerning the degradation of CPs by...

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Bibliographic Details
Published in:Applied catalysis. B, Environmental Environmental, 2004-02, Vol.47 (4), p.219-256
Main Authors: Pera-Titus, Marc, Garcı́a-Molina, Verónica, Baños, Miguel A, Giménez, Jaime, Esplugas, Santiago
Format: Article
Language:English
Subjects:
AOP
Chlorophenol
Fenton
Half-life time
Kinetic constant
Ozone
Pathway
Photo-Fenton
Photocatalysis
Photolysis
Radiation
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Summary:Advanced oxidation processes (AOPs) constitute a promising technology for the treatment of wastewaters containing non-easily removable organic compounds. Chlorophenols (CPs) are a group of special interest due to their high toxicity and low biodegradability. Data concerning the degradation of CPs by means of AOPs reported during the period 1995–2002 are evaluated in this work. Among the AOPs, the following techniques are studied: processes based on hydrogen peroxide (H2O2+UV, Fenton, photo-Fenton and Fenton-like processes), photolysis, photocatalysis and processes based on ozone (O3, O3+UV and O3+catalyst). Half-life times and kinetic constants for CP degradation are reviewed and the different mechanistic degradation pathways are taken into account.
ISSN:0926-3373
1873-3883
DOI:10.1016/j.apcatb.2003.09.010