微生物燃料电池连接方式对产电效率影响的比较

微生物燃料电池是一种新型能源，在处理污水的同时产生电能。然而目前微生物燃料电池产电效率低，无法进行大规模的工业生产，如何提高微生物燃料电池的产电效率已经成为国内外研究的热点。设计了由双室微生物燃料电池构建的电压串联及并联、生物量串联及并联共4组电池实验，对不同连接方式进行比较，燃料电池在不同连接方式下的产电效率以及对污水的处理能力均有所不同。同时也设计了升压电路，保证燃料电池的电压基本维持在680 mV左右。生物实验结果表明，电压串、并联及生物量串、并联都能使燃料电池的工作电压有不同程度的提高；升压，电压串、并联及生物量串、并联能不同程度地提高燃料电池对有机物的降解能力，其中生物量串、并联对提高有机物的降解能力最为显著。

Comparison of the effect of microbial fuel cell connectivity on power generation efficiency

Microbial fuel cells (MFCs) offer a new type of water treatment technology. However, because the production efficiency of microbial fuel cells is low, they cannot be employed on a large scale. Therefore, finding ways to improve the efficiency of MFCs has become a hot research topic at home and abroad. In this paper, we report four groups of experiments involving double chamber microbial fuel cells connected in voltage series and parallel, and biomass series and parallel. We find that different connection methods have a different effect on the electrical efficiency and sewage treatment capacity. We also designed a booster circuit to ensure that the fuel cell can maintain a basic voltage of about 680 mV. Analysis of biological experiments shows that voltage series and parallel and biomass series and parallel connectivity result in the working voltage of fuel cells having different degrees of improvement. Boosting voltage parallel and series and biomass series and parallel can improve the degradation ability of fuel cells to different degrees, and the biodegradation ability of biomass series and parallel is the most significant.