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Home / Human and Ecological Risk Assessment, Volume 12, Number 2

Comparison of Photocatalytic Oxidation and Ozonation in Degrading of Polycyclic Aromatic Hydrocarbons

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Authors: Yip, H. 1 ; Chiu, S. 2 ; Yu, J. 2 ; Wong, P. 2 ; 

Source: Human and Ecological Risk Assessment, Volume 12, Number 2, April 2006, pp. 270-276(7)

Publisher: Taylor and Francis Ltd

DOI: https://doi.org/10.1080/10807030500531570

Polycyclic aromatic hydrocarbons (PAHs) are hazardous pollutants. Photocatalytic oxidation (PCO) was used to degrade individual PAHs dissolved in aqueous solution and results were compared to those used for ozonation treatment of PAHs in aqueous phase and adsorbed on soil reported previously. Both PCO and ozonation showed high effectiveness and efficiency in degrading PAHs within only minutes of time. Ozonation showed higher performance in the degradation of PAHs in aqueous solution than in soil, whereas the treatment efficiency of PCO was higher than that of ozonation in degrading PAHs in aqueous solution. Both methods have advantages over each other but they have their own limitation(s) in practical application.

Keywords: ozonation; photocatalytic oxidation; polycyclic aromatic hydrocarbons

Document Type: Research Article

Affiliations: 1: Department of Biology, The Chinese University of Hong Kong, Hong Kong SAR, P. R. China 2: Department of Chemistry, The Chinese University of Hong Kong, Hong Kong SAR, P. R. China

Publication date: 01 April 2006

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