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首页> 外文期刊>Energy Conversion & Management >Power generation in dual chamber microbial fuel cells using dynamic membranes as separators
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Power generation in dual chamber microbial fuel cells using dynamic membranes as separators

机译：使用动态膜作为隔板的双室微生物燃料电池发电

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摘要

Two dual-chamber microbial fuel cells (MFCs) that use dynamic membranes as separators were designed for power production. The performance of these dynamic membrane microbial fuel cells (DM-MFCs) was studied. Compared to an up-flow dual-chamber MFC (U-MFC), at the total volume of 1.1 L, DM-MFCs achieved a higher maximum power density (1923 mW m(-3) versus 856 mW m(-3)). This is because the DM-MFCs have lower membrane resistance (0.6-5.4 Omega), oxygen diffusion coefficient (D-0 = 1.8 x 10(-7) cm(2) s(-1)), and cost (0.3 USD m(-2)) than other reported separators; e.g., anion exchange membrane (ACM), cation exchange membrane (CEM), ultrafiltration membrane (UFM), and J-cloth. The dynamic membrane is primarily composed of filamentous bacteria and vorticellidae-like protozoa, which tightly attach to the nylon supporting layer. This microorganism layer consumes most of the dissolved oxygen and prevents oxygen transfer from the cathode chamber to the anode chamber, leading to the low D-0 value of the dynamic membrane. Power production of DM-MFCs was further optimized by increasing the NaCl concentration in the influent and the electrode area. The results show that DM-MFCs are feasible and suitable for scaling-up because of their sleeve-shaped configuration. These results indicate that dynamic membranes can be used to increase power production in MFCs relative to traditional separators and DM-MFCs are promising tools for practical applications.
机译：设计了两个使用动态膜作为隔板的双室微生物燃料电池（MFC），用于发电。研究了这些动态膜微生物燃料电池（DM-MFCs）的性能。与上流双室MFC（U-MFC）相比，DM-MFC在1.1 L的总体积下实现了更高的最大功率密度（1923 mW m（-3）与856 mW m（-3）） 。这是因为DM-MFC具有较低的膜电阻（0.6-5.4Ω），氧扩散系数（D-0 = 1.8 x 10（-7）cm（2）s（-1））和成本（0.3 USD m （-2））比其他报告的分隔符；例如，阴离子交换膜（ACM），阳离子交换膜（CEM），超滤膜（UFM）和J布。动态膜主要由丝状细菌和涡虫状原生动物组成，它们紧密附着在尼龙支撑层上。该微生物层消耗大部分溶解的氧气，并阻止氧气从阴极室转移到阳极室，从而导致动态膜的D-0值低。通过增加进水口和电极区域中的NaCl浓度，可进一步优化DM-MFC的发电。结果表明，DM-MFC由于具有套筒状的构造，因此是可行的并且适合按比例放大。这些结果表明，相对于传统的分离器，动态膜可用于提高MFC中的发电量，而DM-MFC是实用的有前途的工具。

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  • 来源
    《Energy Conversion & Management》 |2018年第6期|488-494|共7页
  • 作者

    Li Xinyang; Liu Guicheng; Sun Shaobin; Ma Fujun; Zhou Siyu; Lee Joong Kee; Yao Hong;

  • 作者单位

    Beijing Jiaotong Univ, Sch Civil Engn, 3 Shangyuancun, Beijing 100044, Peoples R China;

    KIST, Ctr Energy Convergence Res, Green City Res Inst, Hwarang Ro 14 Gil 5, Seoul 02792, South Korea;

    Beijing Jiaotong Univ, Sch Civil Engn, 3 Shangyuancun, Beijing 100044, Peoples R China;

    Beijing Jiaotong Univ, Sch Civil Engn, 3 Shangyuancun, Beijing 100044, Peoples R China;

    Beijing Jiaotong Univ, Sch Civil Engn, 3 Shangyuancun, Beijing 100044, Peoples R China;

    KIST, Ctr Energy Convergence Res, Green City Res Inst, Hwarang Ro 14 Gil 5, Seoul 02792, South Korea;

    Beijing Jiaotong Univ, Sch Civil Engn, 3 Shangyuancun, Beijing 100044, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Microbial fuel cells; Dynamic membranes; Separator; Neylon mesh; Low cost; Scaling-up;

    机译：微生物燃料电池;动态膜;分离器;尼龙网;低成本;放大;

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