Abstract
Scrubbing of NO x from the gas phase with Fe(II)EDTA has been shown to be highly effective. A new biological method can be used to convert NO to N2 and regenerate the chelating agent Fe(II)EDTA for continuous NO absorption. The core of this biological regeneration is how to effectively simultaneous reduce Fe(III)EDTA and Fe(II)EDTA-NO, two mainly products in the ferrous chelate absorption solution. The biological reduction rate of Fe(III)EDTA plays a main role for the NO x removal efficiency. In this paper, a bacterial strain identified asKlebsiella Trevisan sp. was used to demonstrate an inhibition of Fe(III)EDTA reduction in the presence of Fe(II)EDTA-NO. The competitive inhibition experiments indicted that Fe(II)EDTA-NO inhibited not only the growth rate of the iron-reduction bacterial strain but also the Fe(III)EDTA reduction rate. Cell growth rate and Fe(III)EDTA reduction rate decreased with increasing Fe(II)EDTA-NO concentration in the solution.
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References
Harriott, P., Smith, K., Benson, L.B., 1993. Simultaneous removal of NO and SO2 in packed scrubbers or spray towers.Environ. Prog.,12(2):110–113.
Jing, G.H., Li, W., Shi, Y., Ma, B.Y., Tan, T.E., 2004a. Regeneration of nitric oxide chelate absorption solution by two heterotrophic bacterial strains.J. Zhejiang Univ. SCI.,5(4):432–435.
Jing, G.H., Li, W., Shi, Y., Ma, B.Y., Tan, T.E., 2004b. Isolation and its properties of bacterial strain for Fe3+EDTA reduction.China Environmental Science,24(4):447–451 (in Chinese).
Jing, G.H., Li, W., Shi, Y., Ma, B.Y., Tan, T.E., 2004c. Properties ofPseudomonas sp. DN-1 in reduction of nitric oxide chelate absorption solution.Chinese Journal of Environmental Science,25(4):163–166 (in Chinese).
Li, W., Shi, Y., Jing, G.H., Ma, B.Y., Chang, S.G., 2003. A novel approach for simultaneous reduction of Fe(II)EDTA-NO and Fe(III)EDTA using micro-organisms.J. Chem. Ind. Eng. (China),54(9):1340–1342.
Shi, Y., Littlejohn, D., Chang, S.G., 1996a. Integrated tests for removal of nitric oxide with iron thiochelate in wet flue gas desulfurization systems.Environmental Science and Technology,30(11):3371–3376.
Shi, Y., Littlejohn, D., Chang, S.G., 1996b. Kinetics of NO absorption in aqueous iron(II) bis(2,3-dimercapto-1-propanesulfonate) solutions using a stirred reactor.Ind. Eng. Chem. Res.,35(5):1668–1672.
Shi, Y., Littlejohn, D., Kettler, P.B., Chang, S.G., 1996c. Removal of nitric oxide from flue gas with iron thiochelate aqueous solution in a turbulent contact absorber.Environ. Prog.,15(3):153–158.
Shi, Y., Wang, H., Chang, S.G., 1997. Kinetics of NO absorption in aqueous iron(II) thiochelate solutions.Environ. Prog.,16(4):301–306.
Tsai, S.S., Bedell, S.A., Kirby, L.H., Zabick, D.J., 1989. Field evaluation of nitric oxide abatement with ferrous chelates.Environ. Prog.,8:126–129.
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Project (No. 20176052) supported by the National Natural Science Foundation of China and the Scientific Research Foundation for Returned Overseas Chinese Scholars, Ministry of Education
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Wei, L., Cheng-zhi, W., Shi-han, Z. et al. Experimental study on the inhibition of biological reduction of Fe(III)EDTA in NO x absorption solution. J. Zhejiang Univ. Sci. B 6, 1005–1008 (2005). https://doi.org/10.1007/BF02888492
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DOI: https://doi.org/10.1007/BF02888492