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首页> 外文会议>Annual Water Environment Federation technical exhibition and conference >Farm-based microbial fuel cell system for continuous treatment of swine wastewater
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Farm-based microbial fuel cell system for continuous treatment of swine wastewater

机译：基于农场的微生物燃料电池系统，用于连续处理猪废水

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Microbial fuel cells (MFCs) have long held the promise of being a cost-effective technology for the energy-neutral treatment of wastewater. However, successful pilot-scale demonstrations for this promising technology are still limited to very few. Here we present a large-scale MFC system with a total volume of 110 L successfully treating swine wastewater at a small educational farm. The system was operated for over 200 days in continuous mode with a hydraulic residence time of 4 hours (flow rate of 380 mL/min, 0.1 gal/min). The results indicate a very stable waste treatment performance with up to 65% of chemical oxygen demand (COD) removed and a maximum treatment rate of 5.0 kg-COD/m3.day. The electrochemical performance of the system shows that the power recovered from the microbial transformation of waste organics into electricity is not only competitive with conventional cogeneration processes, but in-fact sufficient to sustain the operational energy requirements of system.
机译：长期以来，微生物燃料电池（MFCs）一直是一种经济高效的中性废水处理技术。但是，对于这种有前途的技术成功的中试规模的演示仍然仅限于极少数。在这里，我们介绍了一个大型MFC系统，该系统在一个小型教育农场中成功处理了猪废水，总容量为110L。该系统以连续模式运行200天以上，液压停留时间为4小时（流速380 mL / min，0.1 gal / min）。结果表明，废物处理性能非常稳定，去除了高达65％的化学需氧量（COD），最大处理速率为5.0 kg-COD / m3.day。系统的电化学性能表明，从废有机物微生物转化为电能所回收的功率不仅与传统的热电联产工艺竞争，而且实际上足以维持系统的运行能量需求。

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