title: Comparison of nutrient-removing microbial communities in activated sludge from full-scale MBRs and conventional plants.
abstract: The composition of nutrient-removing microbial communities in five full-scale membrane bioreactors (MBRs) was investigated using fluorescence in situ hybridization and 16S rRNA pyrosequencing and compared to similar analyses of conventional activated sludge (CAS) communities. The communities were highly similar but some genera that are always present in enhanced biological phosphorus removal (EBPR) (core groups) were absent in the MBRs. The overall phylogenetic similarity of the communities indicated that these differences were primarily closely related groups. More research is needed to establish the operational significance of the observed differences between MBR and CAS sludge.
authors.affiliation: Department of Biotechnology, Chemistry and Environmental Engineering, Aalborg University, Sohngaardsholmsvej 49, DK-9000 Aalborg, Denmark. ams@bio.aau.dk
authors.forename: A M
authors.initials: AM
authors.lastname: Saunders
authors.forename: P
authors.initials: P
authors.lastname: Larsen
authors.forename: P H
authors.initials: PH
authors.lastname: Nielsen
mesh_terms: D001419:Bacteria / Q000145:classification / Q000235:genetics; D019149:Bioreactors; D017404:In Situ Hybridization, Fluorescence; D012329:RNA, Bacterial / Q000235:genetics; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D012722:Sewage / Q000382:microbiology*; D014865:Waste Disposal, Fluid / Q000379:methods*; D014871:Water Microbiology
chemical_list: D012329:RNA, Bacterial; D012336:RNA, Ribosomal, 16S; D012722:Sewage