Correction to Enhanced Reduction of Fe(II)EDTA-NO/Fe(III)EDTA in NOx Scrubber Solution Using a Three-Dimensional Biofilm-Electrode Reactor

Zhou, Ya; Gao, Lin; Xia, Yinfeng; Li, Wei

doi:10.1021/es304668s

Cited by 13 publications

(20 citation statements)

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“…However, it remained unclear how much Fe(III)EDTA reduction it achieved based on the current data. On the other hand, microorganism‐mediated bioelectrochemical reaction could also lead to Fe(III)EDTA reduction and this pathway might be predominant in this system for Fe(III)EDTA reduction, evidenced by the detection of abundant potential iron‐reducing bacteria (Fig. S2) and relatively low oxidability of Fe(III)EDTA at neutral pH .…”

Section: Resultsmentioning

confidence: 99%

“…Apparently, the first pathways are preferred due to their complete production of free Fe(II)EDTA from Fe(II)EDTA‐NO. In terms of Equation (8), actually, Fe(II)EDTA has been demonstrated to be an electron donor for bioreduction of Fe(II)EDTA‐NO . When Fe(II)EDTA acted as electron donor, the removal of Fe(II)EDTA‐NO would be at the cost of increasing Fe(III)EDTA.…”

Section: Resultsmentioning

confidence: 99%

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Regeneration of spent NOx scrubber liquor using a dual-chamber microbial fuel cell

Sun

Dong

Chen

2014

J. Chem. Technol. Biotechnol.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Regeneration of spent NOx scrubber liquor using a dual-chamber microbial fuel cell

Sun

Dong

Chen

2014

J. Chem. Technol. Biotechnol.

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“…However, sulfite and sulfide have direct toxic effects on the iron-reducing bacteria which consequently inhibit the bioreduction of Fe(III)EDTA [8,12,15]. In this study, there were no significant changes in Fe(II)EDTA concentrations with varying SO 2 concentrations, which might be attributed to the combined result of a toxic effect on the bioreduction of Fe(III)EDTA and a promotion effect of chemical reduc- tion of Fe(III)EDTA by the sulfur-containing compounds (e.g., sulfide).…”

Section: Effect Of O 2 Concentrationsmentioning

confidence: 99%

“…Some researchers focused on isolating and fostering highly efficient bacteria [9,10], whereas others explored new bioreactors [11]. Zhou et al [12] developed a three-dimensional biofilm-electrode reactor (3D-BER) to enhance the bioreduction of Fe(II)EDTA-NO and Fe(III)EDTA. The 3D-BER presented much higher reduction rate and removal loading than normal bioreduction and BER.…”

Section: Introductionmentioning

confidence: 99%

High-efficiency removal of NO x by a novel integrated chemical absorption and two-stage bioreduction process using magnetically stabilized fluidized bed reactors

et al. 2015

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To enhance the bioregeneration of Fe(II)EDTA and to avoid the inhibition of the components in nitrogen oxides (NO x ) scrubbing solution, a novel integrated process of metal chelate absorption and two-stage bioreduction was developed. In this process, magnetically stabilized fluidized beds (MSFB) were used as the bioreactors, and the phase diagram for the MSFB operation was determined. Factors including inlet NO, O 2 and SO 2 concentrations, magnetic field intensity, gas flow rate and liquid circulation rate, were studied experimentally to investigate their effects on NO removal. In addition, a mathematical model for NO removal in this integrated system was developed. The results revealed that the integrated system could be steadily operated with a high NO removal efficiency and elimination capacity, even under the condition of high NO and O 2 shock-loading. The established model showed that NO removal efficiency was related to the spray column property and the active Fe(II)EDTA concentration, while the latter depends on the bioregeneration of the disabled absorbent in the MSFB. nitrogen oxides, flue gas, immobilized bacteria, magnetically stabilized fluidized bed

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“…The wet flue gas desulfurization (FGD) system has obtained high SO 2 removal efficiency [6], but it is not for NOx because 90% of NO X in typical flue gas is NO that is insoluble in water. Some methods have been tried to enhance NO absorption, including the utilization of oxidants to oxidize NO to NO 2 and the addition of various iron(II) chelates to coordinate and activate NO [7][8][9][10][11][12][13][14][15]. But none of these methods have been applied commercially.…”

Section: Introductionmentioning

confidence: 99%

Regeneration of hexamminecobalt(II) under the catalysis of activated carbon treated with K₂S₂O₈ solution

Long

Zhang

Chou

et al. 2014

Env Prog and Sustain Energy

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The combined elimination of NO and SO 2 can be realized by hexamminecobalt(II) solution. Activated carbon is utilized to catalyze the reduction of hexamminecobalt(III) (Co(NH 3 ) 6 31 ) to hexamminecobalt(II) (Co(NH 3 ) 6 21 ), so as to maintain a high NO removal efficiency for a long time. K 2 S 2 O 8 solution has been tried to modify coconut activated carbon to enhance its catalytic capability in the reduction of hexamminecobalt(III). The experiments have been performed in a stirred cell to investigate the effects of K 2 S 2 O 8 concentration, impregnation temperature, and impregnation time on the catalytic ability of activated carbon. The results showed that the best K 2 S 2 O 8 concentration for the improvement of activated carbon is 0.3 mol L 21 . The optimal impregnation temperature was 40 C. The optimum impregnation duration was 9 h. After treated with K 2 S 2 O 8 solution, the surface area of activated carbon decreased. But the acidity on its surface was enhanced, which played a crucial role in improving the catalytic capacity of activated carbon in the reduction of Co(NH 3 ) 6 31 . The experimental results showed that the modified carbon could obtain a higher NO removal efficiency than the original carbon.

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Correction to Enhanced Reduction of Fe(II)EDTA-NO/Fe(III)EDTA in NOx Scrubber Solution Using a Three-Dimensional Biofilm-Electrode Reactor

Cited by 13 publications

References 0 publications

Regeneration of spent NOx scrubber liquor using a dual-chamber microbial fuel cell

Regeneration of spent NOx scrubber liquor using a dual-chamber microbial fuel cell

High-efficiency removal of NO x by a novel integrated chemical absorption and two-stage bioreduction process using magnetically stabilized fluidized bed reactors

Regeneration of hexamminecobalt(II) under the catalysis of activated carbon treated with K₂S₂O₈ solution

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Correction to Enhanced Reduction of Fe(II)EDTA-NO/Fe(III)EDTA in NOx Scrubber Solution Using a Three-Dimensional Biofilm-Electrode Reactor

Cited by 13 publications

References 0 publications

Regeneration of spent NOx scrubber liquor using a dual-chamber microbial fuel cell

Regeneration of spent NOx scrubber liquor using a dual-chamber microbial fuel cell

High-efficiency removal of NO x by a novel integrated chemical absorption and two-stage bioreduction process using magnetically stabilized fluidized bed reactors

Regeneration of hexamminecobalt(II) under the catalysis of activated carbon treated with K2S2O8 solution

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Product

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Regeneration of hexamminecobalt(II) under the catalysis of activated carbon treated with K₂S₂O₈ solution