...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Environmental Science & Technology >Minimal RED Cell Pairs Markedly Improve Electrode Kinetics and Power Production in Microbial Reverse Electrodialysis Cells
【24h】

Minimal RED Cell Pairs Markedly Improve Electrode Kinetics and Power Production in Microbial Reverse Electrodialysis Cells

机译：最少的RED细胞对可显着改善微生物反向电渗析细胞的电极动力学和功率产生

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Power production from microbial reverse electrodialysis cell (MRC) electrodes is substantially improved compared to microbial fuel cells (MFCs) by using ammonium bicarbonate (AmB) solutions in multiple RED cell pair stacks and the cathode chamber. Reducing the number of RED membranes pairs while maintaining enhanced electrode performance could help to reduce capital costs. We show here that using only a single RED cell pair (CP), created by operating the cathode in concentrated AmB, dramatically increased power production normalized to cathode area from both acetate (Acetate: from 0.9 to 3.1 W/m~2-cat) and wastewater (WW: 0.3 to 1.7 W/m~2), by reducing solution and charge transfer resistances at the cathode. A second RED cell pair increased RED stack potential and reduced anode charge transfer resistance, further increasing power production (Acetate: 4.2 W/m~2; WW: 1.9 W/m~2). By maintaining near optimal electrode power production with fewer membranes, power densities normalized to total membrane area for the 1-CP (Acetate: 3.1 W/m~2- mem; WW: 1.7 W/m~2) and 2-CP (Acetate: 1.3 W/m~2-mem; WW: 0.6 W/m~2) reactors were much higher than previous MRCs (0.3-0.5 W/m~2-mem with acetate). While operating at peak power, the rate of wastewater COD removal, normalized to reactor volume, was 30-50 times higher in 1-CP and 2-CP MRCs than that in a single chamber MFC. These findings show that even a single cell pair AmB RED stack can significantly enhance electrical power production and wastewater treatment.
机译：通过在多个RED电池对堆和阴极室中使用碳酸氢铵（AmB）溶液，与微生物燃料电池（MFCs）相比，微生物反向电渗析电池（MRC）电极的发电量得到了显着改善。在保持增强的电极性能的同时减少RED膜对的数量可以帮助降低投资成本。我们在这里表明，仅使用通过在浓缩AmB中运行阴极而创建的单个RED电池对（CP），就可以将两种乙酸盐归一化为阴极面积，从而极大地提高了发电量（乙酸盐：从0.9到3.1 W / m〜2-cat）和废水（WW：0.3至1.7 W / m〜2），这是通过降低阴极处的溶液和电荷转移电阻来实现的。第二对RED电池对增加了RED堆叠电位并降低了阳极电荷转移电阻，从而进一步提高了发电量（乙酸：4.2 W / m〜2； WW：1.9 W / m〜2）。通过用较少的膜保持接近最佳的电极功率产生，功率密度标准化为1-CP（醋酸盐：3.1 W / m〜2-mem； WW：1.7 W / m〜2）和2-CP（醋酸盐）的总膜面积：1.3 W / m〜2-mem； WW：0.6 W / m〜2）反应器比以前的MRC（含乙酸盐的0.3-0.5 W / m〜2mem）高得多。当以峰值功率运行时，标准化为反应器体积的废水中COD的去除率在1-CP和2-CP MRC中比单室MFC高出30-50倍。这些发现表明，即使单个电池对AmB RED堆栈也可以显着增强电力生产和废水处理。

著录项

  • 来源
    《Environmental Science & Technology》 |2013年第24期|14518-14524|共7页
  • 作者

    Roland D. Cusick; Marta Hatzell; Fang Zhang; Bruce E. Logan;

  • 作者单位

    Department of Civil and Environmental Engineering, The Pennsylvania State University, 131 Sackett Building, University Park, Pennsylvania 16802, United States,Department of Civil and Environmental Engineering, 3217 Newmark, Civil Engineering Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801;

    Department of Mechanical and Nuclear Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States;

    Department of Civil and Environmental Engineering, The Pennsylvania State University, 131 Sackett Building, University Park, Pennsylvania 16802, United States;

    Department of Civil and Environmental Engineering, The Pennsylvania State University, 131 Sackett Building, University Park, Pennsylvania 16802, United States;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号