PMID- 16673420
OWN - NLM
STAT- MEDLINE
DCOM- 20060808
LR  - 20131121
IS  - 0006-3592 (Print)
IS  - 0006-3592 (Linking)
VI  - 94
IP  - 4
DP  - 2006 Jul 5
TI  - Sequencing batch membrane biofilm reactor for simultaneous nitrogen and 
      phosphorus removal: novel application of membrane-aerated biofilm.
PG  - 730-9
AB  - A sequencing batch membrane biofilm reactor (SBMBfR) was developed for 
      simultaneous carbon, nitrogen, and phosphorus removal from wastewater. This 
      reactor was composed of two functional parts: (1) a gas-permeable membrane on 
      which a nitrifying biofilm formed and (2) a bulk solution in which bacteria, 
      mainly denitrifying polyphosphate-accumulating organisms (DNPAOs), were 
      suspended. The reactor was operated sequentially under anaerobic condition and 
      then under membrane aeration condition in one cycle. During the anaerobic period, 
      organic carbon was consumed by DNPAOs; this was accompanied by phosphate release. 
      During the subsequent membrane aeration period, nitrifying bacteria utilized 
      oxygen supplied directly to them from the inside of the membrane. Consequently, 
      the nitrite and nitrate products diffused into the bulk solution, where they were 
      used by DNPAOs as electron acceptors for phosphate uptake. In a long-term 
      sequencing batch operation, the mean removal efficiencies of total organic carbon 
      (TOC), total nitrogen (T-N), and total phosphorus (T-P) under steady-state 
      condition were 99%, 96%, and 90%, respectively. In addition, fluorescence in situ 
      hybridization (FISH) clearly demonstrated the difference in bacterial community 
      structure between the membrane biofilm and the suspended sludge: 
      ammonia-oxidizing bacteria belonging to the Nitrosomonas group were dominant in 
      the region adjacent to the membrane throughout the operation, and the occupation 
      ratio of the well-known polyphosphate-accumulating organism (PAO) Candidatus 
      "Accumulibacter phosphates" in the suspended sludge gradually increased to a 
      maximum of 37%.
CI  - (c) 2006 Wiley Periodicals, Inc.
FAU - Terada, Akihiko
AU  - Terada A
AD  - Department of Chemical Engineering, Waseda University, 3-4-1 Ohkubo, Shinjuku-ku, 
      Tokyo 169-8555, Japan.
FAU - Yamamoto, Tetsuya
AU  - Yamamoto T
FAU - Tsuneda, Satoshi
AU  - Tsuneda S
FAU - Hirata, Akira
AU  - Hirata A
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - United States
TA  - Biotechnol Bioeng
JT  - Biotechnology and bioengineering
JID - 7502021
RN  - 0 (Membranes, Artificial)
RN  - 27YLU75U4W (Phosphorus)
RN  - N762921K75 (Nitrogen)
SB  - IM
MH  - Bacteria/genetics/isolation & purification
MH  - Bacterial Physiological Phenomena
MH  - Biofilms/*growth & development
MH  - Bioreactors
MH  - Biotechnology/instrumentation/methods
MH  - In Situ Hybridization, Fluorescence
MH  - Membranes, Artificial
MH  - Nitrogen/isolation & purification/metabolism
MH  - Phosphorus/isolation & purification/metabolism
EDAT- 2006/05/05 09:00
MHDA- 2006/08/09 09:00
CRDT- 2006/05/05 09:00
PHST- 2006/05/05 09:00 [pubmed]
PHST- 2006/08/09 09:00 [medline]
PHST- 2006/05/05 09:00 [entrez]
AID - 10.1002/bit.20887 [doi]
PST - ppublish
SO  - Biotechnol Bioeng. 2006 Jul 5;94(4):730-9. doi: 10.1002/bit.20887.