| Literature DB >> 11100785 |
J Beltran-Heredia1, J Torregrosa, J R Dominguez, J A Peres.
Abstract
A comparative study is made of 12 methods of chemical oxidation applied to degrading p-hydroxybenzoic acid in aqueous solution. The oxidation processes tested were: UV, O3, UV/TiO2, O3/Fe2+, O3/H2O2, O3/UV, UV/H2O2, H2O2/Fe2+, H2O2/Fe2+/O3, UV/H2O2/O3, H2O2/Fe2+/UV and O3/UV/H2O2/Fe2+. The 12 processes were ranked by reactivity. In a kinetic study, the overall kinetic rate constant was split up into three components: direct oxidation by UV irradiation (photolysis), direct oxidation by ozone (ozonation), and oxidation by free radicals (mainly OH*).Entities:
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Year: 2001 PMID： 11100785 DOI： 10.1016/s0045-6535(00)00136-3
Source DB: PubMed Journal: Chemosphere ISSN： 0045-6535 Impact factor: 7.086