好氧污泥颗粒化的影响因素  

Factors affecting aerobic sludge granulation process

作　　者：刘倩倩[1] 李小明[1] 杨麒[1] 曾光明[1] 廖青[1] 廖德祥[1] 

机构地区：[1]湖南大学环境科学与工程学院,湖南长沙410082

出　　处：《工业水处理》2009年第2期22-25,共4页Industrial Water Treatment

基　　金：国家自然科学基金项目(50478054);国际科技合作重点项目(2004DFA06200)

摘　　要：好氧污泥颗粒化是近几年发现的在好氧条件下自发形成的细胞自身固定化过程,是生物膜特殊的生长形式。与传统活性污泥法处理废水相比,好氧颗粒污泥具有良好的沉降性能,较高的生物量和很强的抗冲击负荷能力。文章总结并分析了影响好氧污泥颗粒化的几个主要因素,如进水底物、COD负荷、水力剪切力、溶解氧浓度、选择压、温度、pH、饥饿期、进水中的金属离子等。It is found that aerobic sludge granulation process is the self-immobilized sludge and is a special case of biofilm. Compared with the traditional treatment of wastewater, aerobic granular sludge has better capability,such as better settling ability, higher biomass retention and strong ability to withstand strong impact and loading. Summarization is made on the key factors affecting the aerobic granulation process, including substrate composition, organic loading rate, hydrodynamic shear force, dissolved oxygen,selective pressure, temperature, pH, aerobic starvation, and presence of metal ions in the influent water.

关 键 词：好氧颗粒污泥 培养 影响因素 

分 类 号：X703.1[环境科学与工程—环境工程]