中文摘要：

运用ERIC—PCR技术，分析研究了炼油废水处理菌剂的组成，以及炼油废水处理系统在受到高负荷冲击时，投加高效炼油废水处理菌剂的生物强化系统和对照系统中污泥微生物群落结构的变化．结果表明，投加高效菌剂的处理系统抗高负荷冲击和恢复系统稳定的能力明显高于对照系统；并且，投加高效菌剂的处理系统在受到高负荷冲击时污泥微生物群落结构变化甚微，在短时间内污泥微生物群落结构即能够恢复正常．

英文摘要：

The microbial community structure in the bioaugmented system for refinery wastewater treatment and the changes in this system when it received shock loading were studied using ERIC-PCR technology. The results showed that the system with microorganism agent had a higher resistance ability against shock loading than the control system. Furthermore, the changes in the microbial community structure of the bioaugmented system were very small during the shock loading, and the system could be recovered within a short time.