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环境化学  2015 

DOI:10.7524/j.issn.0254-6108.2014.05.019

Keywords: 沉积型微生物燃料电池(SMFC),外阻,产电性能,有机质去除率

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Abstract:

在校园浅水湖中以10、100、500、1000Ω外阻运行沉积型微生物燃料电池(Sedimentmicrobialfuelcell,SMFC)180d,考察了外阻对天然水体中SMFC产电性能和有机质去除率的影响.实验结果表明,运行180d内,外阻为100Ω的SMFC体系(SMFC-100)的平均输出功率密度和有机质去除率最高,分别为3.40mW·m-2和38%.短期运行(30d)后,体系的内阻随着外阻增大而逐渐增大,分别为98.7、120.2、124.2、149.7Ω,但是SMFC-100体系的最大功率密度(Pmax)最高,为6.12mW·m-2.长期运行(150d)后,4个体系的内阻和Pmax均进一步增大,然而各体系的Pmax相差不大.

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