厌氧颗粒污泥的结构及驯化培养  

The Structure and Cultivation of Anaerobic Granular Sludge

作　　者：刘一山[1] LIU Yi-shan(Sichuan Technology and Business College,Dujiangyan,Sichuan Province,611830 China)

机构地区：[1]四川工商职业技术学院,四川都江堰611830

出　　处：《纸和造纸》2020年第2期34-38,共5页Paper and Paper Making

摘　　要：厌氧颗粒污泥是水解酸化菌、产氢产酸菌和产甲烷菌,在UASB或IC厌氧反应器内,在水力剪切力、胞外多聚物和金属离子等的综合作用下,各细菌相互絮聚而形成的生物菌群。这些细菌相互依存形成一条食物链,将污水中的污染物分解、消耗并转化成甲烷,使污水中的污染物质减少。在厌氧污泥的颗粒化培养驯化过程中,要控制厌氧反应器内料液的上升速度,以便产生适宜的水力剪切力,促使污泥的颗粒化;同时,还要控制好温度、碱度和COD等条件。The anaerobic granular sludge is composed of hydrolysation acidification bacteria,hydrogen and acetic acid producing bacteria,and methanogenic bacteria.The different kinds of bacteria dwell together in the granular sludge and form a complete food chain.These bacteria decompose and digest pollutants in the water,and convert the degradation into methane,achieve wastewater treatment.The anaerobic granular sludge is formed in the circumstances of Upflow Anaerobic Sludge Bed (UASB) and Internal Circulation Anaerobic Reactor (IC),with the helps from hydraulic shearing force,Extra Cellular Polysaccharides (ECP) and metallic ions.So the water rising speed in reactor,temperature,alkalinity and COD of the water should been controlled accurately during sludge granulation.

关 键 词：颗粒污泥 结构 培养 

分 类 号：X793[环境科学与工程—环境工程]