SBR中厌氧颗粒污泥向好氧颗粒污泥的转化  

Cultivation of Aerobic Granular Sludge in SBR by Seeding Anaerobic Granular Sludge

作　　者：胡林林[1] 王建龙[2] 文湘华[1] 杨宁[1] 钱易[1] 

机构地区：[1]清华大学环境模拟与污染控制国家重点联合实验室,北京100084 [2]清华大学核能技术设计研究院环境技术研究室,北京100084

出　　处：《环境科学》2004年第4期74-77,共4页Environmental Science

基　　金：国家自然科学基金资助项目 ( 5 99780 2 0 )

摘　　要：在SBR反应器中以醋酸钠为碳源 ,UASB厌氧颗粒污泥作为接种污泥 ,在好氧曝气条件下运行 .通过观察污泥颗粒形态、结构等的变化 ,发现在运行中污泥颗粒经历了形态保持 ,成分置换的过程 .污泥浓度先增加后降低 ,在运行 35d后逐渐稳定在 5 g/L ,SVI值稳定在 30～ 4 0mL/g的水平 .在 4 0～ 6 0d内反应器中颗粒污泥一直占主体成分 ,悬浮相浓度低于 0 .5 g/L .在好氧条件下最终颗粒污泥形态、大小稳定 ,表明好氧颗粒污泥已经成功获得 ,好氧颗粒污泥与接种污泥相比在粒径、沉降速度、含水率以及惰性成分的含量上都有一定的变化 .电镜观察还表明 ,原厌氧颗粒污泥中的微生物以球菌为主 。Anaerobic granular sludge was inoculated to an aerobic SBR, where CH 3COONa was used as the carbon source. Observations on the change of granules' shape and structure revealed that the granules experienced a shape-keeping and component-replacing process. The sludge concentration increased at first 4 weeks and then decreased to reach a constant of 5g/L at 35d with its SVI of 30～40mL/g. Granular sludge dominated in the reactor and suspended sludge concentration was less than 0.5g/L during the end of the process. Anaerobic granular sludge, in which spheral bacteria was the main microorganism, was successfully developed to aerobic granular sludge in which filamentous and bacillius bacteria were the dominant microorganism.

关 键 词：厌氧颗粒污泥 好氧颗粒污泥 SBR 

分 类 号：X703.1[环境科学与工程—环境工程]