高活性厌氧颗粒污泥微生物特性和形成机理的研究北大核心

选择了几种生产废水和人工配水形成的厌氧颗粒污泥,进行了其微生物形态,特性和组成研究.成熟的颗粒表面电镜扫描观察表明,产甲烷索氏丝状菌是形成颗粒的主要细菌,在生长的后期相互缠绕形成拟颗粒状的菌团;八叠球菌在颗粒形成的初期也起到了一定的作用.本研究对人工配水颗粒污泥形成五阶段的污泥微生物组成和运行特点,以及“241”网状中空载体核对细菌的粘附作用等进行了初步观察.讨论了厌氧颗粒污泥形成必要的条件.

STUDIES ON THE MICROBIOLOGICAL CHARACTERS AND THE MECHANISM OF FORMATION OF GRANULAR SLUDGES WITH HIGH ACTIVITY

Anaerobic granular sludges formed in several kinds of industrial or synthetic wastewater were selected for microbial studies on morphology, characteristics and microbial composition. By scanning the surfaces of matured sludge granules with electronic microscope, it showed that the dominant bacterium in granules was Methanothrix sp. which twined about each other to form granule-like pellets during the later period of the growth. And Methanosarcina sp. played a certain role during the initial period of granule formation as well. In this study, the microbial composition and operation features in all formation stages of sludge granules in synthetic wastewater and adhesion of the "241" Net Polymer to bacteria were observed preliminarily. The necessary conditions for anaerobic granular sludge formation were discussed.