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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2010.6
- 수록면
- 71 - 78 (8page)
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To understand the effects of acclimation schemes on the formation of anode biofilms, different electrical performances are characterized in this study, with the roles of suspended and attached bacteria in single-chamber microbial fuel cells (MFCs). The results show that the generation of current in single-chamber MFCs is significantly affected by the development of a biofilm matrix on the anode surface containing abundant immobilized microorganisms. The long-term operation with suspended microorganisms was demonstrated to form a dense biofilm matrix that was able to reduce the activation loss in MFCs. Also, a Pt-coated anode was not favorable for the initial or long-term bacterial attachment due to its high hydrophobicity (contact angle = 124˚), which promotes easy detachment of the biofilm from the anode surface. Maximum power (655.0mW/m2) was obtained at a current density of 3,358.8mA/m2 in the MFCs with longer acclimation periods. It was found that a dense biofilm was able to enhance the charge transfer rates due to the complex development of a biofilm matrix anchoring the electrochemically active microorganisms together on the anode surface. Among the major components of the extracellular polymeric substance, carbohydrates (85.7mg/m2 (anode)) and proteins (81.0mg/m2 (anode)) in the dense anode biofilm accounted for 17 and 19%, respectively, which are greater than those in the sparse anode biofilm.
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참고문헌 (28)
참고문헌 신청
1. [학술지(정기간행물)] - Du Z / 2007 / A state of the art review on microbial fuel cells: A promising technology for wastewater treatment and bioenergy / Biotechnol. Adv. 25 : 464 ~ 482
2. [학술지(정기간행물)] - Liu H / 2004 / Electricity generation using an air-cathode single chamber microbial fuel cell in the presence and absence of a proton exchange membrane / Environ. Sci. Technol. 38 : 4040 ~ 4046
3. [학술지(정기간행물)] - Liu H / 2004 / Production of Electricity during Wastewater Treatment Using a Single Chamber Microbial Fuel Cell / Environ. Sci. Technol. 38 : 2281 ~ 2285
4. [학술지(정기간행물)] - Oh S / 2004 / Cathode performance as a factor in electricity generation in microbial fuel cells / Environ. Sci. Technol. 38 : 4900 ~ 4904
5. [학술지(정기간행물)] - Fan Y / 2007 / Enhanced Coulombic efficiency and power density of air-cathode microbial fuel cells with an improved cell configuration / J. Power Sources 171 : 348 ~ 354
2. [학술지(정기간행물)] - Liu H / 2004 / Electricity generation using an air-cathode single chamber microbial fuel cell in the presence and absence of a proton exchange membrane / Environ. Sci. Technol. 38 : 4040 ~ 4046
3. [학술지(정기간행물)] - Liu H / 2004 / Production of Electricity during Wastewater Treatment Using a Single Chamber Microbial Fuel Cell / Environ. Sci. Technol. 38 : 2281 ~ 2285
4. [학술지(정기간행물)] - Oh S / 2004 / Cathode performance as a factor in electricity generation in microbial fuel cells / Environ. Sci. Technol. 38 : 4900 ~ 4904
5. [학술지(정기간행물)] - Fan Y / 2007 / Enhanced Coulombic efficiency and power density of air-cathode microbial fuel cells with an improved cell configuration / J. Power Sources 171 : 348 ~ 354
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UCI(KEPA) : I410-ECN-0101-2017-539-001547512