TY - GEN
T1 - Evaluation of a new approach for NOx removal from the flue gas in lab-scale
AU - Zhang, Shi Han
AU - Liu, Yun
AU - Cai, Ling Lin
AU - Li, Wei
PY - 2009
Y1 - 2009
N2 - A chemical absorption-biological reduction integrated approach is developed to achieve the NOx removal from the flue gas. In this integrated process, NO (the primary component of NOx) is chelated by Fe(II)EDTA and subsequently reduced to N2 by microorganism. Fe(III)EDTA formed via oxidation of Fe(II)EDTA by oxygen in the flue gas is simultaneously and biologically reduced back to Fe(II)EDTA. During the steady state operation, the integrated approach for the NO removal can be achieved to 90%, in comparison with 29% by the water-based biofilter. Moreover, full breakthrough of NO was observed in the scrubbing process after 5 h of operation at the same condition. Two dedicated bacterial strains (a Fe(II)EDTA-NO reducing bacterium and Fe(III)EDTA reducing one) were isolated and characterized. The competition between Fe(III)EDTA and Fe(II)EDTA-NO reduction was also investigated with the mixed cultures.
AB - A chemical absorption-biological reduction integrated approach is developed to achieve the NOx removal from the flue gas. In this integrated process, NO (the primary component of NOx) is chelated by Fe(II)EDTA and subsequently reduced to N2 by microorganism. Fe(III)EDTA formed via oxidation of Fe(II)EDTA by oxygen in the flue gas is simultaneously and biologically reduced back to Fe(II)EDTA. During the steady state operation, the integrated approach for the NO removal can be achieved to 90%, in comparison with 29% by the water-based biofilter. Moreover, full breakthrough of NO was observed in the scrubbing process after 5 h of operation at the same condition. Two dedicated bacterial strains (a Fe(II)EDTA-NO reducing bacterium and Fe(III)EDTA reducing one) were isolated and characterized. The competition between Fe(III)EDTA and Fe(II)EDTA-NO reduction was also investigated with the mixed cultures.
UR - http://www.scopus.com/inward/record.url?scp=78649512532&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=78649512532&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:78649512532
SN - 9780841224414
T3 - ACS National Meeting Book of Abstracts
BT - American Chemical Society - 237th National Meeting and Exposition, ACS 2009, Abstracts of Scientific Papers
T2 - 237th National Meeting and Exposition of the American Chemical Society, ACS 2009
Y2 - 22 March 2009 through 26 March 2009
ER -