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OALib Journal期刊
ISSN: 2333-9721
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尿液微生物燃料电池研究
DOI: 10.3724/SP.J.1145.2014.03030, PP. 36-40
Keywords: 微生物燃料电池,源分离尿液,生物能源,脱氮,arcobacter
Abstract:
尿液是市政污水中氮、磷与cod的主要来源，将尿液从污水系统中分离单独处理可以缓解城市污水处理厂有机物、营养素的超负荷难题.以源分离的尿液为底物，研究微生物燃料电池的产电特征及其污染物去除效果，并进一步考察影响系统产电性能的因素.结果显示：在超过6个月的试验过程中，伴随有机物和总氮的减少，系统可保持长期稳定的功率输出.cod和总氮的最高去除率为92.9%和65.6%，系统最大输出功率为388.2mw/m2，这也是迄今尿液微生物燃料电池所获得的最高功率.阳极碳毡表面菌群分析显示具有电化学活性的arcobacter和具有发酵功能的bacteroides为优势菌群.氨氮积累、微生物淤积以及尿液中的物质沉淀等是影响尿液微生物燃料电池性能的主要因素.研究结果表明，尿液微生物燃料电池高效地实现了在污染物去除的同时获得高输出功率，体系中arcobacter是一种新型的胞外产电菌，其强电化学作用可利用在生物电能的获得过程中.
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