| 用高浓度对苯二甲酸溶液产电的微生物燃料电池 |
| 摘要点击 3056 全文点击 2125 投稿时间：2008-06-13 修订日期：2008-07-01 |
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| 中文关键词 微生物燃料电池 单极室 对苯二甲酸（TA） 产电 |
| 英文关键词 microbial fuel cell(MFC) single-chamber terephthalic acid (TA) electrogenesis |
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| 中文摘要 |
| 以高浓度对苯二甲酸（TA）溶液为底物，研究微生物燃料电池的产电效果.以厌氧活性污泥作为接种体，经过210 h驯化，开路电压达到0.54 V，证明了TA可以作为微生物燃料电池的底物进行产电.深入研究了不同pH值和底物浓度对产电的影响，实验结果表明，当体系pH为8.0时，负载两端（R=1 000 Ω）电压最大，底物浓度越高，负载两端电压越大，并逐渐趋近于一个最大值，通过Monod方程回归得到该微生物燃料电池体系输出电压的最大值Umax为0.5 V，Ks值为785.2 mg/L.当底物浓度（以COD计）为4 000 mg/L时，最大输出功率密度为96.3 mW/m2，库仑效率为2.66%，COD去除率为80.3%. |
| 英文摘要 |
| The high concentration terephthalic acid (TA) solution as the substrate of microbial fuel cell (MFC) was studied to generate electricity. The open circuit voltage was 0.54 V after inoculating for 210 h with anaerobic activated sludge, which proved that TA can be the substrate of microbial fuel cell to generate electricity. The influence of pH and substrate concentration on generating electricity was studied deeply. The voltage output of external resistance (R=1 000 Ω) was the highest when pH was 8.0. It increased as the substrate concentration increasing and tended towards a maximum value. The maximum voltage output Umax was 0.5 V and Ks was 785.2 mg/L by Monod equation regression. When the substrate concentration (according to COD) was 4 000 mg/L, the maximum power density was 96.3 mW/m2, coulomb efficiency was 2.66% and COD removal rate was 80.3%. |
