Field applications of a bio-trickling filter for the removal of nitrogen oxides from flue gas.
A bio-trickling filter (BTF) packed with polyhedral spheres was used to remove nitrogen oxides (NOx) from the flue gas of a coal-fired power plant. The BTF system consistently removed 64-95% of the NOx after start-up and acclimation under dynamic conditions (e.g., 120-240 m(3)/h flue gas flow rate and inlet 300-900 mg NOx/m(3)). Scanning electron microscopy of the biofilms that were formed showed a shift in the predominating bacteria. Analyses by PCR-denaturing gradient gel electrophoresis showed that the naturally-selected mixed cultures in the biofilm under a flue gas environment were mainly Klebsiella sp. and Pseudomonas sp.
Jiang
Ran
R
College of Environmental Science and Engineering, South China University of Technology, Higher Education Mega Center, Guangzhou, 510006, People's Republic of China.
Huang
Shaobin
S
Yang
Jun
J
Deng
Kang
K
Liu
Zhenghui
Z
D000393:Air Pollutants / Q000378:metabolism*; D018441:Biofilms / Q000254:growth & development; D016000:Cluster Analysis; D016172:DNA Fingerprinting; D004269:DNA, Bacterial / Q000737:chemistry / Q000235:genetics; D004275:DNA, Ribosomal / Q000737:chemistry / Q000235:genetics; D004591:Electrophoresis, Polyacrylamide Gel; D005374:Filtration / Q000379:methods*; D007709:Klebsiella / Q000145:classification / Q000235:genetics / Q000254:growth & development; D008855:Microscopy, Electron, Scanning; D008969:Molecular Sequence Data; D009589:Nitrogen Oxides / Q000378:metabolism*; D009691:Nucleic Acid Denaturation; D010802:Phylogeny; D011549:Pseudomonas / Q000145:classification / Q000235:genetics / Q000254:growth & development; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D017422:Sequence Analysis, DNA
D000393:Air Pollutants; D004269:DNA, Bacterial; D004275:DNA, Ribosomal; D009589:Nitrogen Oxides; D012336:RNA, Ribosomal, 16S