Abstract:

The activated sludge and biological aerated filter are used for the refineru wastewater treatment.The main contaminants such an COD_Cr,SS,NH₃-N and volatile phenl are removed first in the activated sludge sysytem.Then,the residue is treated in the biological aerated filter.The results show that the efficency of this process is stable and feasible and the system displays a great resistance to shock.The average removal rate of COD,S^2-,NH₃-N and volatile phenol are more than 80% respectively.The quanlity of effluent meets discharging standard of China (GB 8978-1996,the first grade of National Discharged Standard for the secong kind of contaminants ).

Key words: refinery wastewater , activated sludge , upflow biological aerated filter

摘要：

针对炼油厂采用普通活性污泥工艺处理炼油废水,出水水质经常超标,且对冲击负荷适应力差的情况,采用上流式曝气生物滤池(UBAF)工艺对废水进行处理,运行结果表明,COD_Cr、NH₃-N、SS等主要污染物的去除率3都超过80%,出水水质达到或高于GB8978—1996的第二类污染物一级排放标准。

关键词: 炼油废水, 活性污泥, 上流式曝气生物滤池

CLC Number: 

• X742