title: [Changes of Microbial Community Structure in Activated Sludge Bulking at Low Temperature].
abstract: The mechanism of activated sludge bulking in Zhengzhou wastewater treatment plant was studied by measurement of water quality parameters and high-throughput sequencing technology. The change of SVI value was significantly negatively correlated with the seasonal temperature variation, and sludge bulking was easy to occur during December to the next April, but the water quality was not affected. The result verified by high-throughput sequencing technology analysis showed that the microbial community structure of bulking sludge was significantly different from that of the non-bulking one. The dominant filamentous bacteria in the bulking sludge in this plant were Saprospiraceae and Flavobacterium. Therefore, the activated sludge bulking in this wastewater treatment plant was caused by the propagation of filamentous bacteria at low temperature.
authors.forename: Zheng-hua
authors.initials: ZH
authors.lastname: Duan
authors.forename: Liu-ming
authors.initials: LM
authors.lastname: Pan
authors.forename: Xiao-ou
authors.initials: XO
authors.lastname: Chen
authors.forename: Xiu-duo
authors.initials: XD
authors.lastname: Wang
authors.forename: Le-jun
authors.initials: LJ
authors.lastname: Zhao
authors.forename: Le-qi
authors.initials: LQ
authors.lastname: Tian
mesh_terms: D001419:Bacteria / Q000145:classification*; D003080:Cold Temperature; D059013:Microbial Consortia; D012621:Seasons; D012722:Sewage / Q000382:microbiology*; D062065:Wastewater
chemical_list: D012722:Sewage; D062065:Wastewater