Comparison of microbial communities of activated sludge and membrane biofilm in 10 full-scale membrane bioreactors

2016 ◽  
Vol 101 ◽  
pp. 214-225 ◽  
Author(s):  
Sung Jun Jo ◽  
Hyeokpil Kwon ◽  
So-Yeon Jeong ◽  
Chung-Hak Lee ◽  
Tae Gwan Kim
Keyword(s):  
Activated Sludge ◽  
Microbial Communities ◽  
Membrane Bioreactors ◽  
Full Scale

Comparison of nutrient-removing microbial communities in activated sludge from full-scale MBRs and conventional plants

2013 ◽  
Vol 68 (2) ◽  
pp. 366-371 ◽  
Author(s):  
A. M. Saunders ◽  
P. Larsen ◽  
P. H. Nielsen
Keyword(s):  
Activated Sludge ◽  
Microbial Communities ◽  
Phosphorus Removal ◽  
Membrane Bioreactors ◽  
Full Scale ◽  
Biological Phosphorus Removal ◽  
Conventional Activated Sludge ◽  
16S Rrna Pyrosequencing ◽  
Biological Phosphorus

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.

Evaluating the application of Microbacterium sp. strain BR1 for the removal of sulfamethoxazole in full-scale membrane bioreactors

2015 ◽  
Vol 72 (10) ◽  
pp. 1754-1761 ◽  
Author(s):  
A. Fenu ◽  
B. M. R. Donckels ◽  
T. Beffa ◽  
C. Bemfohr ◽  
M. Weemaes
Keyword(s):  
Activated Sludge ◽  
Municipal Wastewater ◽  
Membrane Bioreactors ◽  
Full Scale ◽  
Process Conditions ◽  
Municipal Wastewater Treatment ◽  
Viable Biomass ◽  
The One ◽  
Micro Organisms

Microbacterium sp. strain BR1 is a bacterial strain that recently received attention for its capability to mineralize sulfamethoxazole (SMX) and other sulfonamides. In this study, the survival of Microbacterium sp. in municipal sludge waters was tested in batch experiments to explore optimal process conditions. Inoculation of Microbacterium sp. was subsequently performed in a pilot membrane bioreactor (MBR) operated in two configurations: treating full-scale MBR permeate (post-treatment) and treating raw municipal wastewater. SMX removal by Microbacterium sp. could not be proved in any of the configurations, except for SMX concentrations far higher than the ones normally found in municipal wastewater. By use of molecular tools (fluorescence in situ hybridization analysis) a low capability to survive in activated sludge systems was assessed. After inoculation, Microbacterium sp. was reduced to a small fraction of the viable biomass. The observed growth rate appeared to be many times lower than the one of typical activated sludge micro-organisms. Possibilities of application in full-scale municipal wastewater treatment are scarce.

Microbial Communities on the Submerged Membranes in Full-Scale Membrane Bioreactors Treating Municipal Wastewater

2018 ◽  
Vol 144 (1) ◽  
pp. 04017084 ◽  
Author(s):  
Kazuki Takada ◽  
Kurumi Hashimoto ◽  
Satoshi Soda ◽  
Michihiko Ike ◽  
Takashi Makio ◽  
...  
Keyword(s):  
Microbial Communities ◽  
Municipal Wastewater ◽  
Membrane Bioreactors ◽  
Full Scale

scholarly journals Overall functional gene diversity of microbial communities in three full-scale activated sludge bioreactors

2014 ◽  
Vol 98 (16) ◽  
pp. 7233-7242 ◽  
Author(s):  
Yu Xia ◽  
Xiaohui Wang ◽  
Xianghua Wen ◽  
Kun Ding ◽  
Jizhong Zhou ◽  
...  
Keyword(s):  
Activated Sludge ◽  
Microbial Communities ◽  
Gene Diversity ◽  
Full Scale ◽  
Functional Gene ◽  
Functional Gene Diversity
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