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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2019.9
- 수록면
- 443 - 448 (6page)
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The present study was conducted to compare the voltage generation in two-chamber microbial fuel cells (MFCs) with a biocathode where nitrate and oxygen are used as a terminal electron acceptors (TEA) and to investigate the nitrogen removal and the electrochemical characteristics depending on the separators of the MFCs for denitrification. The maximum power density in a biocathode MFC using an anion exchange membrane (AEM) was approximately 40% lower with the use of nitrate as a TEA than when using oxygen. The MFC for denitrification using an AEM allows acetate (CH₃COO-) as a substrate and nitrate (NO₃⁻) as a TEA to be transported to the opposite sides of the chamber through the AEM. Therefore, heterotrophic denitrification and electrochemical denitrification occurred simultaneously at the anode and the cathode, resulting in a higher COD and nitrate removal rate and a lower maximum power density. The MFC for the denitrification using a cation exchange membrane (CEM) does not allow the transport of acetate and nitrate. Therefore, as oxidation of organics and electrochemical denitrification occurred at the anode and at the cathode, respectively, the MFC using a CEM showed a higher coulomb efficiency, a lower COD and nitrate removal rate in comparison with the MFC using an AEM.
목차
ABSTRACT
1. Introduction
2. Materials and Methods
3. Results and Discussion
4. Conclusions
References
참고문헌 (20)
참고문헌 신청
You S, Zhao Q, Zhang J, Jiang J, Zhao S. A microbial fuel cell using permanganate as the cathodic electron acceptor. J. Power Sources 2006;162:1409-1415.
Kim IS, Chae KJ, Choi MJ, Verstraete W. Microbial fuel cell: Recent advances, bacterial communities and application beyond electricity generation. Environ. Eng. Res. 2008;13:51-65.
Eaktasang N, Kang CS, Ryu SJ, Suma Y, Kim HS. Enhanced current production by electroactive biofilm of sulfate-reducing bacteria in the microbial fuel cell. Environ. Eng. Res. 2013;18:277-281.
Raghavulu SV, Mohan V, Goud RK, Sarma PN. Effect of anodic pH microenvironment on microbial fuel cell performance in concurrence with aerated and ferricyanide catholytes. Electrochem. Commun. 2009;11:371-375.
Logan BE. Exoelectrogenic bacteria that power microbial fuel cells. Nature 2009;7:375-381.
Kim IS, Chae KJ, Choi MJ, Verstraete W. Microbial fuel cell: Recent advances, bacterial communities and application beyond electricity generation. Environ. Eng. Res. 2008;13:51-65.
Eaktasang N, Kang CS, Ryu SJ, Suma Y, Kim HS. Enhanced current production by electroactive biofilm of sulfate-reducing bacteria in the microbial fuel cell. Environ. Eng. Res. 2013;18:277-281.
Raghavulu SV, Mohan V, Goud RK, Sarma PN. Effect of anodic pH microenvironment on microbial fuel cell performance in concurrence with aerated and ferricyanide catholytes. Electrochem. Commun. 2009;11:371-375.
Logan BE. Exoelectrogenic bacteria that power microbial fuel cells. Nature 2009;7:375-381.
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UCI(KEPA) : I410-ECN-0101-2019-539-000448556