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

摘要: The performance of UV/H 2O 2, UV/O 3 and 2/O oxidation systems for treating spent caustic from an ethylene plant was investigated. In 2 system, with the increase H dosage, removal efficiencies COD ratio biochemical oxygen demand(BOD) to chemical demand(COD) effluent were increased a better obtained than system alone. efficiency reach 68% under optimum condition, BOD/COD significantly 0 22 52. O increased, Under 54%, 48. found be 22.0% higher system.