介绍了石油化工行业产品精制过程中废碱液处理技术的开发及工业应用情况。针对不同种类废碱液的水质组成和特点，开发了以湿式氧化（WAO）技术为核心的配套处理技术，包括催化汽油精制废碱液"湿式氧化-酸化脱酚-SBR"、乙烯精制废碱液"湿式氧化-酸化中和"、丙烷脱氢制丙烯废碱液"加碱中和-湿式氧化-酸化中和-蒸发除盐"等一系列典型石油石化工业废碱液的处理技术。已建成多套废碱液湿式氧化处理装置，可以完全脱除废碱液的恶臭气味，社会效益和经济效益显著。

This paper describes the development and industrial application of the treatment technology for spent caustic solution in the petroleum and chemical industry.In the light of the complexity of spent caustic solutions from different discharge sources,a series of comprehensive treatment technologies based on wet air oxidation (WAO) are developed,including the WAO and acidification de-phenolization technology for the spent caustic solution from catalytic gasoline refining section,the WAO and acidification neutralization technology for the spent caustic solution from ethylene refining section,the alkalization neutralization-WAO-acidification neutralization-multi-effect evaporation technology for the spent caustic solution from propane dehydrogenation unit.Several industrial WAO facilities have been constructed for spent caustic solution treatment,which can remove the foul odor of the spent caustic solution absolutely and bring about obvious social and economic benefits.