Abstract: A case study on the treatment of aromatic hydrocarbon oil-bearing wastewater is introduced. In the project, the treatment process,oil removal-air floatation-A/O-membrane cisterna,has been used. The actual operation results show that the process can effectively treat aromatic hydrocarbon oil-bearing wastewater,and the effluent can meet the requirements for the circulating water quality of make-up water in the factory. The average removing rates of COD, NH₃-N and TN are 96.9%,99% and 72%,respectively. The mass concentration of oil in the effluent is less than 1 mg/L,and the mass concentration of sulfide in the effluent is less than 0.2 mg/L.

Key words: aromatic hydrocarbon oil-bearing wastewater, oil removal, wastewater treatment process, membrane bio-reactor

摘要： 介绍了芳烃含油污水处理的工程案例，该工程采用除油-气浮-A/O-膜池的处理工艺。实际运行结果表明，该工艺可以有效地处理芳烃含油污水，出水能够达到厂区循环水补水水质要求。COD平均去除率达到96.9%，氨氮的平均去除率达到99%，总氮的平均去除率达到72%。出水油质量浓度在1 mg/L以下，硫化物质量浓度在0.2 mg/L以下。

关键词: 芳烃含油废水, 除油, 污水工艺, 膜生物反应器

CLC Number: 

• X703