Abstract
The article is inclined to report experimental results performed in a batch reactor on the wet air oxidation of oily sludge. It is shown that increasing the reaction temperature can improve chemical oxygen demand (COD) removal significantly, increasing O2 excess (OE), initial concentration of oily sludge and prolonging reaction time can help to improve the chemical oxygen demand (COD) removal. COD removal is 96.15% under the optimal condition. It is concluded that wet air oxidation is an effective process for removing organic compounds from oily sludge. The intermediate product such as acetic acid (CH3COOH), carbon monoxide (CO), and the final product such as carbon dioxide (CO2) is analyzed by liquid chromatography and gas chromatography in the experiment.
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