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Biological degradation of potato pulp waste and microbial community structure in microbial fuel cells

机译:马铃薯浆粕废物的生物降解及微生物燃料电池中的微生物群落结构

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The microbial electrochemical cell (MEC) is a promising waste treatment technology to accomplish simultaneous alternative energy production and degradation of organic matters. Potato pulp waste (PPW) from a potato processing plant contains a large amount of carbohydrates that need be degradated before discharge into the environment. Here, we describe electricity generation in single-chamber microbial fuel cells (MFCs) using PPW. Different organic loadings of PPW influenced obviously the power output of MFCs. The maximum power density of 32.1 ± 0.5 W m?3 was obtained in a MFC fed with 10 g L?1 PPW. Microbial community analysis based on high-throughput sequencing of 16S rRNA gene indicated that the predominant populations were obviously different in the MFCs. The syntrophic interactions between polysaccharide-degrading bacteria and exoelectrogens in the anode biofilms drove the cascade utilization of potato pulp waste in MFCs.
机译:微生物电化学电池(MEC)是一种有前途的废物处理技术,可以同时实现替代能源生产和有机物降解。马铃薯加工厂的马铃薯纸浆废物(PPW)包含大量碳水化合物,需要排放到环境中之前将其降解。在这里,我们描述了使用PPW的单室微生物燃料电池(MFC)的发电。 PPW的不同有机负荷明显影响了MFC的功率输出。在装有10 g L ?1 的MFC中获得32.1±0.5 W m ?3 的最大功率密度。小> PPW。基于16S rRNA基因高通量测序的微生物群落分析表明,MFCs中的主要种群明显不同。阳极生物膜中降解多糖的细菌与放电子之间的营养相互作用推动了MFCs中马铃薯浆粕废物的级联利用。

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