Author:
Ai Shengshu,Du Linzhu,Wang Ziheng,Shao Lubo,Kang Hua,Wang Fan,Bian Dejun
Abstract
Three groups of SBR reactors A, B and C with different aeration time were set up to culture the activated sludge which has already bulked. The results showed that the settling performance of activated sludge in reactor A changed a little, but reactors B and C had been significantly improved. High-throughput sequencing results showed that the aeration time had a significant inhibitory effect on the growth of Thothrix, and the longer the aeration time was, the more obvious the inhibition was. When the aeration time is more than 6h, the SBR mode can effectively inhibit filamentous sludge bulking, and the longer the aeration time, the better the effect.
Reference21 articles.
1. Eikelboom Dick H. Process Control of Activated Sludge Plants by Microscopic Investigation. IWA Publishing: 2000-06-30.
2. Krhutková O, Ruz icková I, Wanner J. Microbial evaluation of activated sludge and filamentous population at eight Czech nutrient removal activated sludge plants during year 2000. Water science and technology: a journal of the International Association on Water Pollution Research, 2002, 46.
3. Palm J C. Relationship between Organic Loading, Dissolved Oxygen Concentration and Sludge Settleability in the Completely-Mixed Activated Sludge Process. Journal (Water Pollution Control Federation). 1980, 52(10)
4. Kappeler J, Gujer W. Verification and applications of a mathematical model for ‘‘aerobic bulking’’. Water Res 1994, 28(2) .
5. Chudoba J, Grau P, Ottova V. Control of activated sludge filamentous bulking — II. Selection of microorganisms by means of a selector. Water Res 1973, 7(10) .
Cited by
5 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献