摘要
本文报道了颗粒污泥中不同形态的产甲烷细菌及其分布特主要是氢营养型产甲烷菌,如产甲烷短杆菌、产甲烷螺菌等。细化'。颗粒内层则主要是乙酸营养型产甲烷菌,其中产甲烷丝菌是乙酸细菌之间存在互营共生关系。根据对产甲烷细菌的观察研究结果污泥的初步结构模型,同时对此进行了分析讨论。
This paper decribes the characteristics of composition and distribution of methanogenic bacteria for granular sludge.The observations show that the methanogens at outer layer of granule are mainly hydrogenotrophic,e.g.Methanobrevibacter,Methanospirillum,and the distribution of bacteria exhibits to some extent compartmentation.The methanogenic bacterial populations in inner layer of granule are mainly acetotrophic,and Methanothrix is the predominant species.There exists a syntrophic association between Methanothrix and H_2-producing acetogenic bacteria.Based on these observations,the authors propose a preliminary structural model of granular sludge,and have a discussion for it.
出处
《微生物学报》
CAS
CSCD
北大核心
1993年第4期304-308,共5页
Acta Microbiologica Sinica
基金
国家青年自然科学基金资助
关键词
产甲烷细菌
结构模型
污泥
Methanogenic bacteria
Granular sludge
Structural model
