Chiang Mai Journal of Science

Culturable Bacterial Community in a High Temperature EBPR Reactor

Paper Type	Contributed Paper
Title	Culturable Bacterial Community in a High Temperature EBPR Reactor
Author	Ying Hui Ong 1a, Adeline Seak May Chua 2a*, Geok Yuan Annie Tan3b, and Gek Cheng Ngoh 4a
Email	ngoh@um.edu.my
Abstract:  An enhanced biological phosphorus removal (EBPR) reactor operated at high temperature (28oC) exhibited good phosphorus removal efficiencies of 99% throughout a 2-year operation. To investigate the culturable bacterial community of this system, isolation of bacteria was carried out on agar media containing nutrients similar to that in the EBPR reactor. Analyses of 16S rRNA gene sequences of selected bacterial isolates were found to belong to α-Proteobacteria, β-Proteobacteria, γ-Proteobacteria, Flavobacteria, Bacilli, Sphingobacteria and Actinobacteria. The dominant community was β-Proteobacteria which included Acidovorax spp., Achromobacter spp., and Hydrogenophaga spp. Out of the 24 species identified, some of the bacterial strains were not commonly found in previously reported EBPR processes. Thus, this has contributed to the uniqueness of microbial population in EBPR process operated at high temperature.
Start & End Page	970 - 980
Received Date	2013-06-25
Revised Date
Accepted Date	2014-01-08
Full Text	Download
Keyword	Enhanced biological phosphorus removal, Temperature, Isolation, Bacterial community, Polyphosphate accumulating organisms, Candidatus ‘Accumulibacter Phosphatis’
Volume	Vol.41 No.5/1 (OCTOBER 2014)
DOI
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