Abstract
Ozonation is particularly suited for the treatment of recalcitrant soil contaminants. Clofibric acid, an active metabolite of some blood lipid regulators, was used as a model organic contaminant, and quartzite as a model soil. The measurements performed at different pHs, both in slurries of contaminated soil and in clofibric acid aqueous solutions, indicate that a markedly higher TOC removal can be obtained in the slurry mode. Ozonation kinetics in aqueous slurries was also studied in a well-mixed reactor. Suitable mathematical models were used to describe the experiments and to estimate the best values of the unknown parameters.
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