| 流化床微生物燃料电池基质降解动力学研究 |
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| 引用本文： | 王振,刘新民,郭庆杰.流化床微生物燃料电池基质降解动力学研究[J].环境科学与技术,2012(Z1):29-32,56. |
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| 作者姓名： | 王振 刘新民 郭庆杰 |
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| 作者单位： | 青岛科技大学化工学院 |
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| 基金项目： | 山东省科学技术发展计划项目资助(2010GGX10709) |
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| 摘 要： | 研究了在30℃左右条件下,流化床微生物燃料电池(FBMFC)处理有机废水的基质降解动力学。在空气阴极、单室、无膜液固流化床微生物燃料电池中,以污水和椰壳活性炭为液相和固相,通过实验考察不同水力停留时间的污水COD变化。选取Monod模型和简单动力学模型,通过合理的假设推导出流化床微生物燃料电池处理模拟有机废水时的基质降解动力学模型。将实验数据代入到理论推导得到的动力学模型中,进行线性拟合和对比分析,得到Monod模型和一级反应动力学模型表达式。结果表明流化床微生物燃料电池基质降解为一级反应;Monod模型表达式为:t/s0-st=4.769 7/st+15.885,一级动力学模型为:lnCA=-0.025 32t+8.109 15,理论推导模型与实验数据具有较好的吻合性。
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| 关 键 词： | 流化床 微生物燃料电池 有机废水 Monod方程 一级动力学方程 |
Substrate Degradation Kinetics of Fluidized Bed Microbial Fuel Cell |
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| WANG Zhen,LIU Xin-min,GUO Qing-jie.Substrate Degradation Kinetics of Fluidized Bed Microbial Fuel Cell[J].Environmental Science and Technology,2012(Z1):29-32,56. |
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| Authors: | WANG Zhen LIU Xin-min GUO Qing-jie |
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| Institution: | (College of Chemical Engineering,Qingdao University of Science and Technology,Qingdao 266042,China) |
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| Abstract: | Organic wastewater was treated in a fluidized bed microbial fuel cell(FBMFC) at about 30℃.The FBMFC consist of atmosphere cathode,waste water and coco shell active carbon.The changes of wastewater COD at different retention time were investigated.Based on proper assumption,the kinetic model of anaerobic fluidized bed microbial fuel cell for matrix degradation of organic wastewater was found.The Monod equation and first order reaction kinetic model were compared and tested with experimental data.The results show that matrix degradation of organic wastewater was first order reaction.Monod equation formula is =+15.885,first order reaction formula is lnCA=-0.025 32t+8.109 15.The theoretical models can be fit close with experimental data. |
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| Keywords: | fluidized bed microbial fuel cell organic wastewater Monod equation first order reaction kinetics model |
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