污泥消化对市政污泥中病原微生物的去除特性

Removal Characteristics of Sludge Digestion on Pathogenic Microorganisms in Urban Sludge

污泥消化是污泥生物稳定化、无害化处理的主要方法,探究污泥消化对城市污泥中病原微生物的去除特性具有重要意义。本文系统地归纳了城市污泥中病原微生物的类型和赋存特性,分类讨论了不同污泥消化工艺对典型病原体的去除特性,探究了消化作用对病原体的去除机理及影响因素,以期为污泥处理过程中病原微生物的风险调控和政策制定提供理论依据和科学指导。

Sludge digestion is the main method of sludge bio-stabilization and harmless treatment method.It is of great significance to explore the removal characteristics of sludge digestion on pathogenic microorganisms in municipal sludge.Therefore,the types and occurrence characteristics of pathogens in municipal sludge are systematically summarized in this study,and the removal characteristics of typical pathogens by different treatment processes also are classified and discussed.Furthermore,the mechanism and influencing factors of the removal of pathogens by digestion are discussed,in order to provide theoretical basis and scientific guidance for the risk regulation and policy formulation of pathogenic microorganisms in the sludge treatment process.