Power generation and microbial community analysis in microbial fuel cells: A promising system to treat organic acid fermentation wastewater.
Power generation and microbial community analysis in microbial fuel cells: A promising system to treat organic acid fermentation wastewater.
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DOI：
10.1016/j.biortech.2019.03.119
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发表时间：
2019-07
影响因子：
11.4
通讯作者：
Tian Xia;Xuelin Zhang;Huimin Wang;Yachao Zhang;Yansheng Gao;Congcong Bian;Xia Wang;P. Xu
中科院分区：
文献类型：
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作者：
Tian Xia;Xuelin Zhang;Huimin Wang;Yachao Zhang;Yansheng Gao;Congcong Bian;Xia Wang;P. Xu
为探索有机酸发酵废水的可持续高效处理方法，构建了以废水和驯化菌群为接种源的两种微生物燃料电池（MFC）系统。与接种驯化菌群的MFC相比，接种废水的MFC不仅具有更高的功率密度，（543.75 mW m−2）和库仑效率（22.10%），但也表现出较高的化学需氧量的去除率总氮（76.15%）、氨氮（83.23%）均达到国家污水排放标准。测序分析表明，接种废水的MFC中微生物群落丰富，其中腐螺旋菌科（Saprospiraceae）和热季兰菌科（Caldilineaceae）等细菌对其良好的性能有利。相比之下，接种驯化微生物群落的MFC的微生物群落相对简单。这些结果表明，微生物燃料电池可能是一种可持续的处理有机酸发酵废水的方法，无需任何预处理。
To explore a sustainable and efficient treatment approach for organic acid fermentation wastewater, two microbial fuel cells (MFCs) systems inoculated with wastewater or domesticated microbial community were constructed in this study. Compared with the MFC inoculated with domesticated microbial community, the MFC inoculated with wastewater not only showed higher power density (543.75 mW m−2) and coulomb efficiency (22.10%), but also exhibited higher removal rates of chemical oxygen demand (75.59%), total nitrogen (76.15%), and ammonia nitrogen (83.23%), meeting the demand of wastewater discharge standard of China. Sequencing analysis revealed that the MFC inoculated with wastewater were richer in microbial community, and some bacteria such asSaprospiraceaeandCaldilineaceaewere beneficial for its good performance. In contrast, the microbial community of the MFC inoculated with domesticated microbial community was relatively simple. These results indicated that MFCs may be a sustainable method for organic acid fermentation wastewater treatment without any preprocessing.