温度对活性污泥沉降性能与微生物种群结构的影响-中国水网.pdf

2016,36(1) 109~116 China Environmental Science ,, ,,(,, , 100124) ,5 (15,20,25,30 35 ) .,,, Type 0041 Type 0092 ,5 ;,5 ,SVI (15~30 ),35 SVI 30 .. X703.1 A 2016 Effect of temperature on activated sludge settleability and microbial community structure. WANG Jie, PENG * Yong-zhen , YANG Xiong, WANG Shu-ying, ZHANG Jian-wei (Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Engineering Research Center of Beijing, Beijing University of Technology, Beijing 100124, China). China Environmental Science, 2016,36(1)109~116 Abstract In order to investigate the relationship between operating temperature and sludge settleability, five sequencing batch reactors with automatic control equipment were adopted to explore the effect of different operating temperature (15, 20, 25, 30 and 35 ) on sludge settleability and microbial community structure. The results showed that: when inflowing time was five minutes, sludge bulking did not occurred in all systems. This was due to that effect of operating temperature on sludge settleability was much weaker than substrate concentration, and the dominating filamentous bacterium were Type 0041 and Type 0092; when five hours were adopted, five systems were occurred filamentous bulking phenomenon and SVI value increased as operating temperature (15~30 ) rising due to the interaction between temperature and low substrate concentration. While operating temperature was 35 , SVI value was lower than that in 30 . Moreover, the features of the intracellular storage and extracellular storage as well as the types of dominating filamentous bacteria had a great difference when operating temperature was different. Key words temperature activated sludge settleability sludge bulking filamentous bulking sludge storage [5], [1], ,