Biotechnology Research Institute, National Research Council, 6100 Royalmount Ave, Montréal, Que, Canada.
Bioresour Technol. 2010 Jul;101(14):5256-65. doi: 10.1016/j.biortech.2010.01.122. Epub 2010 Feb 19.
This work presents a two-population model describing the competition of anodophilic and methanogenic microbial populations for a common substrate in a microbial fuel cell (MFC). Fast numerical solution of the model is provided by using ordinary differential equations to describe biomass growth and retention in the anodic compartment. The model parameters are estimated and validated using experimental results obtained in four continuous-flow air-cathode MFCs operated at various external resistances and organic loads. Model analysis demonstrates the influence of operating conditions on MFC performance and suggests ways to maximize MFC power output. The model is suitable both for process optimization and on-line control applications.
本工作提出了一个双种群模型，描述了在微生物燃料电池（MFC）中，厌氧微生物种群和产甲烷微生物种群对共同基质的竞争。通过使用描述阳极室生物质生长和保留的常微分方程，为模型提供了快速数值解。使用在四个连续流动空气阴极 MFC 中获得的实验结果来估计和验证模型参数，这些 MFC 在不同的外部电阻和有机负荷下运行。模型分析表明了操作条件对 MFC 性能的影响，并提出了最大化 MFC 功率输出的方法。该模型既适用于工艺优化，也适用于在线控制应用。
