螺旋升流式反应器系统中污泥特性  

Analysis of Sludge Characteristic in Spiral Up-flow Reactor System

作　　者：罗固源[1] 罗富金[1] 豆俊峰[1] 刘玉亮[1] 

机构地区：[1]重庆大学城市建设与环境工程学院,重庆400045

出　　处：《重庆大学学报（自然科学版）》2003年第10期112-115,共4页Journal of Chongqing University

基　　金：国家"十五"攻关课题(2001BA604A01-03-01)

摘　　要：螺旋升流式反应器是一种新的污水处理工艺,该反应器具有很好的对COD、TP、TN等的处理效果。本文对螺旋升流式反应器在污水脱氮除磷处理中的污泥特性进行了分析,发现MLVSS/MLSS在厌氧单元中呈现递增变化趋势,在缺氧和好氧单元呈现递减变化趋势,这种变化趋势在脱氮除磷效果好时明显,不好时不明显。镜检发现反应器中微生物丰富多样,颗粒污泥紧密、结实。污泥的SV在10%～18%,SVI在30～70之间。污泥的耗氧呼吸速率SOUR随厌氧过程逐渐升高,好氧过程逐渐降低;脱氢酶活性却表现出与之相反的变化规律。Spiral up-flow reactor system is a new process on treatment of wastewater and it has a good removal effect on COD, TP and TN. The tests of sludge character in the spiral upflow reactor system for biological nitrogen and phosphorus removal are conducted. The results indicate that MLVSS/MLSS shows an increasing tendency in the anaerobic cell but it has a decreasing tendency in the anoxic and aerobic units. The difference increases when the removal efficiency of biological nitrogen and phosphorus become higher and it decreases when the result of biological nitrogen and phosphorus removal became worse. All kinds of populations of microorganism were discovered in the reactor with the compact and granular sludge by microscope. SV changed in the range of 10%～18% and SVI was in the range of 30～70. During the anaerobic phase, SOUR of sludge increased, while during the aerobic phase it decreased. Whereas, dehydrogenase activity of sludge had a opposite tendency.

关 键 词：螺旋升流式反应器 污泥特性 耗氧呼吸速率 脱氢酶活性 颗粒污泥 

分 类 号：X703[环境科学与工程—环境工程]