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›› 2012, Vol. 12 ›› Issue (5): 844-848.

• 生化工程专栏 • 上一篇    下一篇

以加热预处理污泥上清液为底物的微生物燃料电池基础特性

宋天顺 吴夏芫 范平 周楚新   

  1. 南京工业大学国家生化工程技术研究中心 南京工业大学生物与制药工程学院 南京工业大学生物与制药工程学院 南京工业大学生物与制药工程学院
  • 收稿日期:2012-08-09 修回日期:2012-09-19 出版日期:2012-10-20 发布日期:2012-10-20
  • 通讯作者: 宋天顺

Basic Electricity-producing Characteristics of Microbial Fuel Cell Using Supernatant Fluid of Heat Pretreated Sludge

SONG Tian-shun WU Xia-yuan FAN Ping ZHOU Chu-xin   

  1. National Engineering Research Centre for Biochemistry, Nanjing University of Technology Biotechnology and Pharmaceutical Engineering, Institute of Joint Bioenergy, Nanjing University of Technology Biotechnology and Pharmaceutical Engineering, Institute of Joint Bioenergy, Nanjing University of Technology Biotechnology and Pharmaceutical Engineering, Institute of Joint Bioenergy, Nanjing University of Technology
  • Received:2012-08-09 Revised:2012-09-19 Online:2012-10-20 Published:2012-10-20
  • Contact: SONG Tian-shun

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摘要： 以单室空气阴极微生物燃料电池(MFC)为反应器，考察了以加热预处理污泥上清液为底物的MFC产电情况. 结果表明，污泥90℃下加热3 h时MFC输出功率最高(44.4 mW/m2)，是未加热的105倍. 在此预处理条件下，污泥上清液中所含有机物成分最有利于阳极微生物的代谢产电. 加热后的污泥再次加热作为MFC底物产电，输出功率只有5.8 mW/m2. 加热预处理可提高以污泥上清液为底物的MFC的输出功率，且易与现有工艺结合，更接近实际应用.

关键词: 污泥, 微生物燃料电池, 产电, 热预处理

Abstract: Using a single-chamber air cathode microbial fuel cell (MFC) as experimental reactor, its electricity generation using sludge supernatant fluid with heat pretreatment was studied. The results showed that its maximum power density (Pmax) of MFC was highest (44.4 mW/m2), when it was heated for 3 h at 90℃, which was 105 times that of MFC without heat pretreatment. Absorbance of UV254 and A250/A365 manifested that the substrate composition of supernatant fluid was most conducive to anodic microbial metabolism in electricity. Pmax of MFC was only 5.8 mW/m2, when MFC used the sludge heat pretreated again as substrate. These results evidently demonstrated the advantages of heating pretreatment to sludge for enhancing MFC power and combing with existing process easily, it was close to actual application.

Key words: sludge, microbial fuel cell, electricity, heat pretreatment

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