TY - JOUR
T1 - Reduction of Fe(II)EDTA-NO by a newly isolated Pseudomonas sp. strain DN-2 in NOx scrubber solution
AU - Zhang, Shi Han
AU - Li, Wei
AU - Wu, Cheng Zhi
AU - Chen, Han
AU - Shi, Yao
N1 - Funding Information:
Acknowledgment The work was sponsored by the National High Technology Research and Development Program of China (no. 2006AA06Z345), the National Natural Science Foundation of China (no. 20176052), and the Science and Technology Project of Zhejiang Province, China (no. 2006C23064).
PY - 2007/10
Y1 - 2007/10
N2 - Biological reduction of nitric oxide (NO) chelated by ferrous ethylenediaminetetraacetate (Fe(II)EDTA) to N2 is one of the core processes in a chemical absorption-biological reduction integrated technique for nitrogen oxide (NOx ) removal from flue gases. A new isolate, identified as Pseudomonas sp. DN-2 by 16S rRNA sequence analysis, was able to reduce Fe(II)EDTA-NO. The specific reduction capacity as measured by NO was up to 4.17 mmol g DCW-1 h-1. Strain DN-2 can simultaneously use glucose and Fe(II)EDTA as electron donors for Fe(II)EDTA-NO reduction. Fe(III)EDTA, the oxidation of Fe(II)EDTA by oxygen, can also serve as electron acceptor by strain DN-2. The interdependency between various chemical species, e.g., Fe(II)EDTA-NO, Fe(II)EDTA, or Fe (III)EDTA, was investigated. Though each complex, e.g., Fe(II)EDTA-NO or Fe(III)EDTA, can be reduced by its own dedicated bacterial strain, strain DN-2 capable of reducing Fe(III)EDTA can enhance the regeneration of Fe(II)EDTA, hence can enlarge NO elimination capacity. Additionally, the inhibition of Fe(II)EDTA-NO on the Fe(III)EDTA reduction has been explored previously. Strain DN-2 is probably one of the major contributors for the continual removal of NO x due to the high Fe(II)EDTA-NO reduction rate and the ability of Fe(III)EDTA reduction.
AB - Biological reduction of nitric oxide (NO) chelated by ferrous ethylenediaminetetraacetate (Fe(II)EDTA) to N2 is one of the core processes in a chemical absorption-biological reduction integrated technique for nitrogen oxide (NOx ) removal from flue gases. A new isolate, identified as Pseudomonas sp. DN-2 by 16S rRNA sequence analysis, was able to reduce Fe(II)EDTA-NO. The specific reduction capacity as measured by NO was up to 4.17 mmol g DCW-1 h-1. Strain DN-2 can simultaneously use glucose and Fe(II)EDTA as electron donors for Fe(II)EDTA-NO reduction. Fe(III)EDTA, the oxidation of Fe(II)EDTA by oxygen, can also serve as electron acceptor by strain DN-2. The interdependency between various chemical species, e.g., Fe(II)EDTA-NO, Fe(II)EDTA, or Fe (III)EDTA, was investigated. Though each complex, e.g., Fe(II)EDTA-NO or Fe(III)EDTA, can be reduced by its own dedicated bacterial strain, strain DN-2 capable of reducing Fe(III)EDTA can enhance the regeneration of Fe(II)EDTA, hence can enlarge NO elimination capacity. Additionally, the inhibition of Fe(II)EDTA-NO on the Fe(III)EDTA reduction has been explored previously. Strain DN-2 is probably one of the major contributors for the continual removal of NO x due to the high Fe(II)EDTA-NO reduction rate and the ability of Fe(III)EDTA reduction.
KW - Biological reduction
KW - Fe(II)EDTA-NO
KW - Fe(III)EDTA, NO
KW - Pseudomonas sp.
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U2 - 10.1007/s00253-007-1078-6
DO - 10.1007/s00253-007-1078-6
M3 - Article
C2 - 17598105
AN - SCOPUS:34548685397
VL - 76
SP - 1181
EP - 1187
JO - Applied Microbiology and Biotechnology
JF - Applied Microbiology and Biotechnology
SN - 0175-7598
IS - 5
ER -