[Microbial Diversity of Filamentous Sludge Bulking at Low Temperature]

Autor: Chun-di, Gao, Na, Zhang, Hui, Han, Hao, Ren, Yue, Li, Chun-Yan, Hou, Chuan-de, Wang, Yong-Zhen, Peng
Rok vydání: 2020
Předmět:
Zdroj: Huan jing ke xue= Huanjing kexue. 41(7)
ISSN: 0250-3301
Popis: To investigate the characteristics of microbial diversity during filamentous bulking at low temperature, the induction of sludge bulking was successfully carried out using a low-temperature sequencing batch reactor(SBR). With the help of Illumina MiSeq high-throughput sequencing technology, the overall changes in the microbial community structure of activated sludge, the characteristics of each specific microbial community, and the specific genera were all investigated under different sludge sedimentation performances. The results showed that filamentous bulking can be successfully induced after the system operating temperature drops to (14±1)℃, and the COD and TN removal rates can still be maintained at approximately 90% and 86%, respectively, with the sludge volume index deteriorating to 663.99 mL·g
Databáze: OpenAIRE