| 摘要 |
The present invention has its action field in the environmental engineering, mainly in the area intended to treat water polluted with recalcitrant compounds. The inventive process refers to an advanced oxidation process developed in a two-phase reactor (liquid-gas), through which molecular ozone (gas) is catalyzed with hydrogen peroxide (H2O2) for reducing hydroxyl radicals (HO0), these latter elements causing a total and accelerated degradation of the organic recalcitrant compounds present in water (liquid). The oxidation process is developed in a reactor under a semi-continuous or continuous regime at a pH of from about 7.6 ± 0.2, within a temperature range of from about 15°C to about 300°C. The reactants dose is of from about 3 moles to about 10 moles of ozone for degrading 1 mol of recalcitrant compound and from about 0.5 g to about 1.0 g of ozone for removing 1.0 g the COD (Chemical Oxygen Demand) in water containing a mixture of recalcitrant compounds. The oxidation or treatment time required for achieving the total degradation of the recalcitrant compounds is shorter than those regarding further advanced oxidation treatment processes.
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