污泥膨胀和生物泡沫的形成机理和控制方法  

Mechanism and Control Solutions for Formation of Sludge Bulking and Biological Foaming

作　　者：李宗仁 张新颖[1] 林琳琳 张莉敏 杜朝丹 陈美香 Li Zongren;Zhang Xinying;Lin Linlin;Zhang Limin;Du Chaodan;Chen Meixiang(College of Environmentand Resources, Fuzhou University, Fuzhou 350108, China;Fujian Haixia Environmental Protection Group Co. ,Ltd. ,Fuzhou 350014, China)

机构地区：[1]福州大学环境与资源学院,福建福州350108 [2]福建海峡环保集团股份有限公司,福建福州350014

出　　处：《净水技术》2018年第4期28-33,共6页Water Purification Technology

基　　金：海环-同济环境产业研究中心科研计划项目课题"城市污水处理厂泡沫污泥形成机理及调控措施研究"

摘　　要：污泥膨胀和生物泡沫是活性污泥法在实际工程应用过程中普遍存在的问题,其主要是由于丝状菌过度繁殖。微生物种群变化和污泥沉降性能下降,以及随之出现的污泥膨胀和生物泡沫现象,会导致系统出水水质变差,运行成本提高,严重时可能会导致整个处理系统的瘫痪。文中讨论了污泥膨胀和生物泡沫产生的原因,总结了国内外污水厂污泥膨胀和发泡时常见的微生物,并对相关的控制技术进行了较为全面的综述。Sludge bulking and biological foaming are two common problems in activated sludge p r o c e s se s , usually caused by the exces sive growth of some filamentous bacterium. Variation of bacterial community and degradation of sludge settling performance, accompanied with sludge bulking and biological foaming,result in low effluent quality and increasing operation cost ,and will even cause system failure. In this paper, formation mechanism of sludge bulking and biological foam is discussed, responsible microorganisms are summarized and relevant control techniques are wel l reviewed.

关 键 词：污泥膨胀 生物泡沫 微生物 丝状菌 控制技术 

分 类 号：TU992[建筑科学—市政工程]