Abstract:

The combined process, oxidation demulsification-coagulation flotation-UASB-contact oxidation-sedimentation, has been used for treating fluorescence wastewater of a aircraft factory. The operation results show that when the average mass concentration of COD, BOD₅, SS, and chroma in influent are 7 000, 2 000, 200 mg/L and 400 degree, respectively, the corresponding effluent concentration of COD, BOD₅, SS and chroma are 105, 24, 20 mg/L and 57 degree, respectively, all of which could meet the requirements for the second grade standard of Integrated Wastewater Discharge Standard(GB 8978—1996), and the treatment effect is stable.

Key words: fluorescence wastewater, oxidation demulsification, coagulation flotation, UASB, contact oxidation

摘要：

采用氧化破乳—混凝气浮—UASB—接触氧化—沉淀工艺处理某飞机制造厂荧光废水，运行结果表明：当进水COD、BOD₅、SS、色度分别为7 000、2 000、200 mg/L、400度时，出水COD、BOD₅、SS、色度分别为105、24、20 mg/L、57度，出水可稳定达到《污水综合排放标准》（GB 8978—1996）的二级排放标准要求，处理效果稳定。

关键词: 荧光废水, 氧化破乳, 混凝气浮, 升流式厌氧污泥床反应器, 接触氧化

CLC Number: 

• X703