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首页> 外文期刊>Environmental Science & Technology >Electricity Generation from Synthetic Acid-Mine Drainage (AMD) Water using Fuel Cell Technologies
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Electricity Generation from Synthetic Acid-Mine Drainage (AMD) Water using Fuel Cell Technologies

机译：使用燃料电池技术从合成酸性矿山排水（AND）发电

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摘要

Acid-mine drainage (AMD) is difficult and costly to treat. We investigated a new approach to AMD treatment using fuel cell technologies to generate electricity while removing iron from the water. Utilizing a recently developed microbial fuel cell architecture, we developed an acid-mine drainage fuel cell (AMD-FC) capable of abiotic electricity generation. The AMD-FC operated in fed-batch mode generated a maximum power density of 290 mW/m~2 at a Coulombic efficiency greater than 97%. Ferrous iron was completely removed through oxidation to insoluble Fe(III), forming a precipitate in the bottom of the anode chamber and on the anode electrode. Several factors were examined to determine their effect on operation, including pH, ferrous iron concentration, and solution chemistry. Optimum conditions were a pH of 6.3 and a ferrous iron concentration above ～0.0036 M. These results suggest that fuel cell technologies can be used not only for treating AMD through removal of metals from solution, but also for producing useful products such as electricity and recoverable metals. Advances being made in wastewater fuel cells will enable more efficient power generation and systems suitable for scale-up.
机译：酸矿排泄（AMD）难以处理且费用昂贵。我们研究了一种使用燃料电池技术发电并同时从水中去除铁的AMD处理新方法。利用最近开发的微生物燃料电池架构，我们开发了一种能够非生物发电的酸性矿井排水燃料电池（AMD-FC）。以分批补料模式运行的AMD-FC在库仑效率大于97％时产生了290 mW / m〜2的最大功率密度。通过氧化将铁完全除去，形成不溶的Fe（III），从而在阳极室的底部和阳极上形成沉淀。检查了几个因素以确定它们对操作的影响，包括pH值，亚铁浓度和溶液化学性质。最佳条件是pH值为6.3，亚铁离子浓度约为〜0.0036M。这些结果表明，燃料电池技术不仅可以用于通过从溶液中去除金属来处理AMD，而且还可以用于生产有用的产品，例如电和可回收产品。金属。废水燃料电池方面的进展将使发电效率更高，并且适合扩大规模。

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  • 来源
    《Environmental Science & Technology》 |2007年第23期|p.8149-8153|共5页
  • 作者

    SHAOAN CHENG; BRIAN A. DEMPSEY; BRUCE E. LOGAN;

  • 作者单位

    Department of Civil and Environmental Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, U.S.A;

  • 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 环境化学;
  • 关键词

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