Control of power sourced from a microbial fuel cell reduces its start-up time and increases bioelectrochemical activity.
Control of power sourced from a microbial fuel cell reduces its start-up time and increases bioelectrochemical activity.
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DOI：
10.1016/j.biortech.2013.04.087
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发表时间：
2013-07
影响因子：
11.4
通讯作者：
H. Boghani;J. R. Kim;R. Dinsdale;A. Guwy;G. Premier
中科院分区：
文献类型：
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作者：
H. Boghani;J. R. Kim;R. Dinsdale;A. Guwy;G. Premier
微生物燃料电池（MFC）的性能取决于电极上产电生物膜的选择性发展。受控的生物膜富集可以减少启动时间并改善随后的功率性能。已知阳极电势影响产电生物催化联合体的启动和随后的性能。通过基于梯度的最大功率点跟踪（MPPT）和瞬态平衡阳极电位其次是MPPT的控制策略不同的电负载进行比较，静态欧姆负载。使用三个重复的H型MFC来研究启动策略：（1）在阳极处施加电势（+0.645V vs Ag/AgCl）之前应用MPPT算法;（2）MFC仅连接到MPPT;（3）Ik Ω和500 Ω的静态外部负载。活性对照显示启动时间从42天显著减少到22天，启动后生物催化活性沿着增加3.5倍。这种主动控制可以通过加速启动和增强MFC功率和生物催化性能来提高适用性。
Microbial fuel cell (MFC) performance depends on the selective development of an electrogenic biofilm at an electrode. Controlled biofilm enrichment may reduce start-up time and improve subsequent power performance. The anode potential is known to affect start-up and subsequent performance in electrogenic bio-catalytic consortia. Control strategies varying electrical load through gradient based maximum power point tracking (MPPT) and transient poised anode potential followed by MPPT are compared to static ohmic loading. Three replicate H-type MFCs were used to investigate start-up strategies: (1) application of an MPPT algorithm preceded by poised-potential at the anode (+0.645 V vs Ag/AgCl); (2) MFC connected to MPPT-only; (3) static external load of 1 kΩ and 500 Ω. Active control showed a significant reduction in start-up time from 42 to 22 days, along with 3.5-fold increase in biocatalytic activity after start-up. Such active control may improve applicability by accelerating start-up and enhancing MFC power and bio-catalytic performance.