高级催化氧化法处理高含盐废水

Study on Treatment of High Salinity Wastewater by Advanced Catalytic Oxidation Process

针对风城油田生产废水高盐、高温、高矿化度、可生化性差等水质特性,采用“混凝沉降、高级催化氧化”工艺进行处理,处理后出水达到GB 8978—1996《污水综合排放标准》二级标准。混凝沉降阶段COD去除率为36%~49%,挥发酚去除率为11%~21%,石油类去除率为42%~69%;催化氧化阶段COD去除率为20%~40%,挥发酚去除率为69%~73%,石油类去除率为16%~20%。

In view of the water quality characteristics of Fengcheng Oilfield production wastewater,such as high salinity,high temperature,high salinity,and poor biodegradability,the process of coagulation sedimentation-advanced catalytic oxidation was adopted,and the treated effluent could meet the secondary discharge standard of GB 8978—1996“Integrated Wastewater Discharge Standard”.The removal rate of COD,volatile phenol and petroleum was 36%-49%,11%-21%,and 42%-69%,respectively,in the coagulation sedimentation stage;the removal rate of COD,volatile phenol,and petroleum was 20%-40%,69%-73%,and 16%-20%,respectively,in the catalytic oxidation stage.