Biological Reduction of Nitric Oxide in Aqueous Fe(II)EDTA Solutions

Peter van der Maas; Thomas van de Sandt; Bram Klapwijk; Piet Lens

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Biological Reduction of Nitric Oxide in Aqueous Fe(II)EDTA Solutions

机译：Fe（II）EDTA水溶液中一氧化氮的生物还原

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The reduction of nitric oxide (NO) in aqueous solutions of Fe(II)EDTA is one of the core processes in BioDeNOx, an integrated physiochemical and biological techique for NO_x removal from industrial flue gases. NO reduction in gaseous solutions of Fe(II)EDTA (20-25 mM, pH 7.2 (+-) 0.2) was investigated in batch experiments at 55 deg C. Reduction of NO to N_2 was found to be biologically catalyzed with nitrous oxide (N_2O) as an intermediate. Various sludges from full-scale denitrifying and anaerobic reactors were capable to catalyze NO reduction under thermophilic conditions. The NO reduction rate was not affected by the presence of ethanol or acetate. EDTA-chelated Fe(II) was found to be a suitable electron donor for the biological reduction of nitric oxide to N_2, with the concomitant formation of Fe(III)EDTA. In the presence of ethanol, EDTA-chelated Fe(III) was reduced to Fe(II)EDTA. This study strongly indicates that redox cycling of FeEDTA plays an important role in the biological denitrification process within the BioDeNOx concept.

机译：Fe（II）EDTA水溶液中一氧化氮（NO）的还原是BioDeNOx的核心过程之一，BioDeNOx是一种从工业烟气中去除NO_x的综合物理化学和生物技术。在55摄氏度的分批实验中研究了Fe（II）EDTA（20-25 mM，pH 7.2（+-）0.2）的气态溶液中的NO还原。发现NO还原为N_2是由一氧化二氮生物催化的（ N_2O）作为中间体。大型反硝化和厌氧反应器中的各种污泥能够在高温条件下催化NO的还原。 NO还原速率不受乙醇或乙酸盐的存在的影响。发现EDTA螯合的Fe（II）是一种合适的电子供体，用于将一氧化氮生物还原为N_2，并伴有Fe（III）EDTA的形成。在乙醇存在下，EDTA螯合的Fe（III）还原为Fe（II）EDTA。这项研究强烈表明，FeEDTA的氧化还原循环在BioDeNOx概念中的生物反硝化过程中起着重要作用。

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《Biotechnology Progress》 |2003年第4期|共6页
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Peter van der Maas; Thomas van de Sandt; Bram Klapwijk; Piet Lens;
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中图分类生物工程学（生物技术）;
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1. Biological Reduction of Nitric Oxide in Aqueous Fe(II)EDTA Solutions [J] . Peter van der Maas, Thomas van de Sandt, Bram Klapwijk, Biotechnology Progress . 2003,第4期

机译：Fe（II）EDTA水溶液中一氧化氮的生物还原
2. Science Letters: Experimental study on the inhibition of biological reduction of Fe(III)EDTA in NO_x absorption solution [J] . LI Wei, WU Cheng-zhi, ZHANG Shi-han Journal of Zhejiang University Science: An international applied physics & engineering journal . 2005,第10期

机译：科学快报：抑制NO_x吸收溶液中Fe（III）EDTA生物还原的实验研究
3. Experimental study on the inhibition of biological reduction of Fe(III)EDTA in NOx absorption solution [J] . LI Wei, WU Cheng-zhi, ZHANG Shi-han, Journal of Zhejiang University. Science, B . 2005,第10期

机译：NOx吸收溶液中Fe（III）EDTA生物减少的实验研究
4. Adsorption of Cu (II) from aqueous single metal solutions by bagasse pith chemically modified with EDTA dianhydride (EDTAD) [C] . CHANGLI Ouyang, XINLIANG Liu, FANG Hu International Conference on Advanced Engineering Materials and Technology . 2011

机译：用EDTA二酐（Edtad）化学修饰的Bagasse Pith中的铜（II）从单金属溶液中吸附Cu（II）
5. I. THE ELECTROCHEMISTRY OF NITRIC OXIDE AND A NITROUS ACID AT A MERCURY ELECTRODE IN AQUEOUS SOLUTIONS. II. ELECTROCHEMISTRY AND HYDROLYSIS KINETICS OF THE 2,2'-BIPYRIDINE COMPLEXES OF IRON(III) AND IRON(II); ELECTROCHEMICAL KINETIC PARAMETERS FOR SEVERAL IRON COMPLEXES. III. PROTON NUCLEAR MAGNETIC RESONANCE STUDIES OF URANIUM(IV)-ETHYLENE DIAMINETETRAACETIC ACID COMPLEXES IN AQUEOUS (DEUTERIUM-OXIDE) SOLUTIONS. [D] . EHMAN, DEWAYNE LEE. 1969

机译：I.水溶液中汞电极上一氧化二氮和亚硝酸的电化学二。铁（III）和铁（II）的2,2'-联吡啶络合物的电化学和水解动力学；多种铁络合物的电化学动力学参数。三，铀（IV）-水溶液（氧化氘）中铀（IV）-乙撑双氨基乙酸复合物的质子核磁共振研究
6. Science letters: Experimental study on the inhibition of biological reduction of Fe(III)EDTA in NOx absorption solution [O] . Wei Li, Cheng-zhi Wu, Shi-han Zhang, 2005

机译：科学快报：抑制NOx吸收溶液中Fe（III）EDTA生物还原的实验研究
7. I. A study of the catalytic decomposition of nitric oxide. II. A chromatographic apparatus and technique for the analysis of nitric oxide in nitrogen. III. Kinetics and mechanism of the air oxidation of the dithionite ion (S2O4=) in aqueous solution [O] . Sakaida Roy R. 1960

机译：I.一氧化氮催化分解的研究。 II。一种分析氮气中一氧化氮的色谱仪和技术。 III。连二亚硫酸盐离子（s2O4 =）在水溶液中空气氧化的动力学和机理
8. Studies of chemical reduction of Fe(III)*EDTA in an SO(sub 2)/NO(sub x) aqueous scrubber system [R] . Li, W., Keener, T. C., Mendelsohn, M., 1996

机译：在sO（sub 2）/ NO（sub x）水洗涤器系统中化学还原Fe（III）* EDTa的研究

Biological Reduction of Nitric Oxide in Aqueous Fe(II)EDTA Solutions

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