Oxidation Of Aqueous Organic Pollutants In Industrial Waste Water By Heterogeneous Photocatalysis Using A Cocurrent Downflow Bubble Column Contactor (CDC)
Price
Free (open access)
Transaction
Volume
13
Pages
8
Published
1995
Size
702 kb
Paper DOI
10.2495/WP950361
Copyright
WIT Press
Author(s)
A.P. Boyes, S. Raymahasay, A.T. Sulidis & J.M. Winterbottom
Abstract
The heterogeneous photocatalytic oxidation of aqueous organic pollutants to innocuous products (i.e. CO], t^O) has been studied in a novel pilot scale photocatalytic reactor. Phenol was used as a representative organic pollutant and TiO] %s a photocatalyst in aqueous dispersions under UV irradiation. Complete degradation of phenol (100 %) was achieved in about 190 min of irradiation for an initial organic substrate loading of 100 mg/drrP and 18 drrP solution. The reaction was strongly pH dependent with pH 2.5-3.0 producing the maximum reaction rates. Results also indicated that complete mineralization of substrate and intermediates could not be accomplished without
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