摘要
在污水处理厂活性污泥法运行问题中,90%是由污泥膨胀所引起。本文介绍了引发污泥膨胀的丝状菌种群特性和丝状菌污泥膨胀的相关理论,阐述了影响丝状菌污泥膨胀的生态因子和控制方法。指出丝状菌污泥膨胀的实质是活性污泥微生态系统平衡失调,微生物群落结构与功能发生变化,丝状菌种群代替菌胶团菌群成为优势种;利用微生物种群之间的捕食、寄生等关系控制污泥膨胀的生态学调控方法,是实现控制丝状菌污泥膨胀,保持污泥微生态系统稳定,获得良好污水净化效果的治本之法。
This paper briefly introduces population characteristics of filamentous bacterium and mechanism of filamentous sludge bulking. It expounds on ecological factors and control methods of filamentous sludge bulking. Sludge bulking leads to loss of balance in sludge microecosystem, change in microbial community structure and filamentous bacterium domination. Ecological control of sludge bulking is highly important, especially in preventing sludge bulking through ecological relationship such as prey and autoeciousness of microorganisms. Further work is crucial for a detail and comprehensive insight into filed of sludge bulking.
出处
《中国生态农业学报》
CAS
CSCD
2008年第3期794-798,共5页
Chinese Journal of Eco-Agriculture
基金
江南大学工业生物技术教育部重点实验室基金(20050616)资助
关键词
污泥微生态系统
丝状菌污泥膨胀
生态因子
生态调控
Sludge microecosystem, Filamentous sludge bulking, Ecological factor, Ecological regulation
