Catalytic ozonation with γ-Al2O3 to enhance the degradation of refractory organics in water

- Remarkable increase of 2,4-dimethylphenol oxidation in presence of alumina.
- Identification of the 2,4-DMP oxidized by-products.
- Benefic effect of alumina attributed to carboxylic acids adsorption and generation of HO
- radicals.
- Basic (Al-OH) sites of alumina were responsible for catalytic ozonation.
- Increase of ozonation efficiency in presence of NaCl and polycyclic aromatic hydrocarbons.