PMID- 19359165
OWN - NLM
STAT- MEDLINE
DCOM- 20090806
LR  - 20171116
IS  - 1873-2976 (Electronic)
IS  - 0960-8524 (Linking)
VI  - 100
IP  - 17
DP  - 2009 Sep
TI  - Ammonia biofiltration and community analysis of ammonia-oxidizing bacteria in 
      biofilters.
PG  - 3869-76
LID - 10.1016/j.biortech.2009.03.021 [doi]
AB  - Biological removal of ammonia was investigated using compost and sludge as 
      packing materials in laboratory-scale biofilters. The aim of this study is to 
      characterize the composition of ammonia-oxidizing bacteria (AOB) in two 
      biofilters designed to remove ammonia. Experimental tests and measurements 
      included analysis of removal efficiency and metabolic products. The inlet 
      concentration of ammonia applied was 20-100 mg m(-3). Removal efficiencies of BFC 
      and BFS were in the range of 97-99% and 95-99%, respectively. Periodic analysis 
      of the biofilter packing materials showed ammonia was removed from air stream by 
      nitrification and by the improved absorption of NH(3) in the resultant acidity. 
      Nitrate was the dominant product of NH(3) transformation. Changes in the 
      composition of AOB were examined by using nested PCR, denaturing gradient gel 
      electrophoresis (DGGE) and sequencing of DGGE bands. DGGE analysis of biofilter 
      samples revealed that shifts in the community structure of AOB were observed in 
      the experiment; however, the idle phase did not cause the structural shift of 
      AOB. Phylogenetic analysis revealed the population of AOB showed Nitrosospira sp. 
      remains the predominant population in BFC, while Nitrosomonas sp. is the 
      predominant population in BFS.
FAU - Jun, Yin
AU  - Jun Y
AD  - College of Environmental Science and Engineering, Zhejiang Gongshang University, 
      Hangzhou, PR China. yjun021@yahoo.com.cn
FAU - Wenfeng, Xu
AU  - Wenfeng X
LA  - eng
PT  - Journal Article
DEP - 20090408
PL  - England
TA  - Bioresour Technol
JT  - Bioresource technology
JID - 9889523
RN  - 0 (Nitrates)
RN  - 0 (Nitrites)
RN  - 0 (Sewage)
RN  - 0 (Soil)
RN  - 7664-41-7 (Ammonia)
SB  - IM
MH  - Ammonia/isolation & purification/*metabolism
MH  - Bacteria/*metabolism
MH  - Biodegradation, Environmental
MH  - Electrophoresis
MH  - Filtration/*methods
MH  - Hydrogen-Ion Concentration
MH  - Nitrates/analysis
MH  - Nitrites/analysis
MH  - Oxidation-Reduction
MH  - Sequence Analysis, DNA
MH  - Sewage/microbiology
MH  - Soil
EDAT- 2009/04/11 09:00
MHDA- 2009/08/07 09:00
CRDT- 2009/04/11 09:00
PHST- 2008/11/23 00:00 [received]
PHST- 2009/03/06 00:00 [revised]
PHST- 2009/03/10 00:00 [accepted]
PHST- 2009/04/11 09:00 [entrez]
PHST- 2009/04/11 09:00 [pubmed]
PHST- 2009/08/07 09:00 [medline]
AID - S0960-8524(09)00276-4 [pii]
AID - 10.1016/j.biortech.2009.03.021 [doi]
PST - ppublish
SO  - Bioresour Technol. 2009 Sep;100(17):3869-76. doi: 10.1016/j.biortech.2009.03.021. 
      Epub 2009 Apr 8.