指纹图谱技术跟踪SUFR反应器恢复运行期间菌群变化

Tracking Microbial Community Structure Changes in SUFR During Function Recovery by Fingerprinting

使用ERIC-PCR指纹图谱技术对SUFR反应器恢复运行后的菌群结构进行分析.结果表明:反应器在停顿10 d开始重新运行后,菌群结构逐渐发生变化,反应器的脱氮除磷效果也随之得到增强.在较短的时间内功能菌群得到重建,菌群结构开始稳定下来,反应器达到稳定运行状态.反应器在稳定运行期间的菌群结构呈多样性分布特征,且优势菌群突出,同时处于稳定运行状态的反应器在常温和低温下有着不同的功能菌群.

The changes in microbial community structure of the Spiral Up-Flow Reactor （SURF） during its function recovery were analyzed by ERIC-PCR fingerprinting. The results indicateed that the microbial community structure changed after a pause of 10 days and at the beginning of re-operation of SURF, and the efficiency of TN and TP removal increased gradually. In a short time, the functional microbial community was reestablished, the microbial community structure reached a stable state, and the reactor began to work steadily. The microbial community structure showed a highly diversified distribution when the reactor worked steadily and the predominant bacteria were obvious. Different functional microbial communities were observed in the staedily operating SUFR under normal and low temperature circumstances.