UV-catalytic treatment of spent caustic from ethene plant with hydrogen peroxide and ozone oxidation

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The performance of UV/H2O2, UV/O3 and UV/H2O2/O3 oxidation systems for treating spent caustic froman ethylene plant was investigated. In UV/H2O2 system, with the increase of H2O2 dosage, removal efficiencies ofCOD and the ratio of biochemical oxygen deman
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