title: Biodiversity and succession of microbial community in a multi-habitat membrane bioreactor.
abstract: The present study focused on establishing a multi-habitat membrane bioreactor, as well as exploring its biodiversity and succession of microbial communities. In a long-term operational period (100 days), the dissolved oxygen level of a local zone within the bioreactor decreased consistently from the original oxic state to the final anaerobic state, which led to a continuous succession of the microbial community in the bioreactor. The results revealed that the biodiversity of the microbial community in different zones simultaneously increased, with a similar microbial composition in their final successional stage. The results also indicated that the dominant species during the whole operation were distributed among 6 major phyla. At the initial operational stages, the dominant species in the anoxic-anaerobic and the oxic zones exhibited distinguished difference, whereas at the final operational stage, both zones presented nearly the same dominant microbial species and a rather similar structure in their microbial communities.
authors.affiliation: School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, PR China. Electronic address: renytang@163.com.
authors.forename: Bing
authors.initials: B
authors.lastname: Tang
authors.affiliation: School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, PR China.
authors.forename: Zi
authors.initials: Z
authors.lastname: Zhang
authors.affiliation: School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, PR China.
authors.forename: Xuan
authors.initials: X
authors.lastname: Chen
authors.affiliation: School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, PR China.
authors.forename: Liying
authors.initials: L
authors.lastname: Bin
authors.affiliation: School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, PR China.
authors.forename: Shaosong
authors.initials: S
authors.lastname: Huang
authors.affiliation: School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, PR China.
authors.forename: Fenglian
authors.initials: F
authors.lastname: Fu
authors.affiliation: School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, PR China.
authors.forename: Huiwen
authors.initials: H
authors.lastname: Yang
authors.affiliation: School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, PR China.
authors.forename: Cuiqun
authors.initials: C
authors.lastname: Chen
mesh_terms: D001419:Bacteria / Q000254:growth & development; D044822:Biodiversity; D018533:Biomass; D019149:Bioreactors / Q000382:microbiology*; D004275:DNA, Ribosomal / Q000235:genetics; D008567:Membranes, Artificial; D064307:Microbiota; D010100:Oxygen / Q000032:analysis; D010802:Phylogeny
chemical_list: D004275:DNA, Ribosomal; D008567:Membranes, Artificial; D010100:Oxygen
keywords: Biodiversity; Membrane bioreactor; Microbial community; Multi-habitat; Succession