摘要
通过对除磷脱氮SBR系统活性污泥性能及活性的研究,认为该系统特有的物质转化方式是导致活性污泥的性能发生周期性变化的主要原因。试验结果表明,单位体积混合液中好氧污泥比厌氧污泥浓度低,好氧污泥中挥发性固体物质的比例比厌氧污泥低;在间歇曝气系统中分子氧的不连续输入使氧化酶传递氧的过程受阻,导致耗氧呼吸速率(SOUR)和脱氢酶活性具有不同的变化规律:前者在厌氧段增加而在好氧段减小,后者在好氧段增加而在缺氧段减小。
By means of the study on activated sludge characteristics and activity in SBR for phosphorus and nitrogen removal system, it was believed that the material translation type inherent in the system was the main reason why the periodic variation took place for activated sludge characteristics. The test result showed that MLSS of aerobic sludge is lower than anaerobic sludge and the ratio of MLVSS/MLSS in aerobic sludge is lower than that in anaerobic sludge. In the intermittent aeration system, the discontinuous input of molecular oxygen hinders the oxygen transfer process of oxidase, which leads to the different variation regularity in specific oxygen uptake rate (SOUR) and activity of dehydrogenase: the former is increased in anaerobic stage and decreased in aerobic stage; the latter is increased in aerobic stage and decreased in anaerobic stage.
出处
《中国给水排水》
CAS
CSCD
北大核心
2003年第6期16-19,共4页
China Water & Wastewater
基金
国家自然科学基金资助项目(50278101)
重庆大学骨干教师资助计划项目(1-57)
关键词
生物除磷
污泥特性
SOUR
脱氢酶活性
SBR系统
biological phosphorus removal
sludge characteristics
SOUR
activity of dehydrogenase
SBR system
