Reduction of Fe (III) EDTA with bio-electro reactor in NOx absorption system

摘要：

During the NOx absorption with Fe(II)EDTA process, Fe(II)EDTA would be oxidized by oxygen in the flue gas to form Fe(III)EDTA, which is not capable of binding NO. In our previous studies, strain Escherichia coli have been found to reduce Fe(III)EDTA efficiently. A new test using bio-electro reactor to promote bio-reduction of Fe(III)EDTA to Fe(II)EDTA is suggested in this paper. The bio-reduction of Fe(III)EDTA was carried out in self-designed reactor. The concentration of Fe(III)EDTA decreased rapidly when electric current was applied. The reduction rate of Fe(III)EDTA decreased with an increase of the initial Fe(III)EDTA concentration. The biofilm formation on the electrode was observed by ESEM (Environmental Scan Electro-Microscope).

关键词： Fe(III)EDTA bio-electro reactor biological reduction NOx

作者: Xu-hong Mi Lin Gao Ling-lin Cai Shi-han Zhang Jin-lin Jiang Wei Li

作者单位: Department of Environmental Engineering, Zhejiang University , Hangzhou 310027, China

会议类型: 国际会议

会议名称: The 12th Asian Pacific Confederation of Chemical Engineering Congress(第十二届亚太化工联盟大会暨化工展览会)

会议地点: 大连

会议语种:英文

在线出版日期: 2008-08-04（万方平台首次上网日期，不代表论文的发表时间）