Abstract
the landfill leachate was disposed by Catalytic Wet Air Oxidation (CWAO) method, and the monitoring indexes include CODCr, decolorization and pH. The results showed that the CODCr removal rate and the decolorization rate of landfill leachate increased with the increase of reaction temperature and reaction pressure. However, they first rose then reduced with the increase of catalyst dosage. Under the condition of the catalyst concentration 300 mg/L of Co (NO3)2, at the reaction pressure of 3.5 MPa and the reaction temperature of 180 °C, the CODCr removal rate and the decolorization rate reached 56.8% and 83.7%, respectively, and pH was 8.45 at the reaction time of 90 min.
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