以沼液为原料的微生物燃料电池产电降解特性

发布时间：2018-06-05 01:55

本文选题：微生物燃料电池 + 沼液　；参考：《化工学报》2014年05期

【摘要】：为提高生物质能源利用效率,降低废水处理成本,实验构建单室无膜空气阴极微生物燃料电池(microbial fuel cell,MFC),碳布作为阴阳极材料,将牛粪沼液作为接种液及底物进行产电性能测试,同时考察了MFC对该沼液的降解效果。结果表明,MFC能够利用沼液进行产电,最高输出电压330 mV,内阻10 kΩ,最大功率密度为10.98 mW·m-2,沼液中的不可溶性物质是导致MFC输出电压、功率密度低的重要原因。MFC的运行对沼液中的有机物、氮、磷等物质具有一定的降解能力,24 h内去除率分别达到20.73%、67.82%、72.56%。因此,MFC作为产生电能的新方法,在联合处理沼液等有机废水节能减排方面具有广阔前景。
[Abstract]:In order to improve the utilization efficiency of biomass energy and reduce the cost of wastewater treatment, a single cell membrane free air cathode microbial fuel cell (MFCs) was constructed. Carbon cloth was used as anode material, and cow dung biogas liquid was used as inoculum and substrate for electrical performance test. At the same time, the degradation effect of MFC on the biogas liquid was investigated. The results showed that the maximum output voltage was 330mV, the internal resistance was 10k 惟, and the maximum power density was 10.98mW m-2. The insoluble substance in the biogas liquid led to the output voltage of MFC. The main reason of low power density is that MFC has a certain ability to degrade organic matter, nitrogen, phosphorus and other substances in biogas liquid within 24 h. The removal rate of MFC reaches 20.73% 67.82% and 72.56% respectively within 24 hours. Therefore, as a new method to generate electric energy, MFC has a broad prospect in energy saving and emission reduction of organic wastewater such as biogas liquid.
【作者单位】：南京工业大学生物与制药工程学院;南京工业大学生物能源研究所;江苏大学;中国科学院广州能源研究所;
【基金】：国家重点基础研究发展计划项目(2013CB733502) 国家自然科学基金项目(21206073) 江苏省自然科学基金项目(BK20130932)~~
【分类号】：TM911.45

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