Department of Civil Engineering and Mechanics, University of Wisconsin-Milwaukee, Milwaukee, WI 53211, USA.
Department of Civil and Environmental Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA.
Bioresour Technol. 2014 Apr;157:154-60. doi: 10.1016/j.biortech.2014.01.085. Epub 2014 Jan 30.
Identifying proper application of microbial fuel cell (MFC) technology and understanding how MFCs can be effectively integrated into the existing wastewater treatment process is critical to further development of this technology. In this study, four identical MFCs were used to treat the wastes sampled from different stages of a cheese wastewater treatment process, and both treatment performance and energy balance were examined. The two MFCs treating liquid wastes achieved more than 80% removal of total chemical oxygen demand (TCOD), while the other two MFCs fed with sludge or cheese whey removed about 60% of TCOD. The MFC-2 treating the dissolved air flotation effluent generated the highest Coulombic efficiency of 27.2±3.6% and the highest power density of 3.2±0.3Wm(-3), and consumed the least amount of energy of 0.11kWhm(-3), indicating that MFCs may be more suitable for treating low-strength wastewater in terms of both treatment and energy performance.
确定微生物燃料电池 (MFC) 技术的适当应用，并了解如何将 MFC 有效地集成到现有的废水处理工艺中，这对于该技术的进一步发展至关重要。在这项研究中，使用四个相同的 MFC 处理从奶酪废水处理过程不同阶段采集的废物，并检查了处理性能和能量平衡。处理液体废物的两个 MFC 实现了超过 80%的总化学需氧量 (TCOD)去除率，而另外两个 MFC 用污泥或乳清处理则去除了约 60%的 TCOD。处理溶气浮选出水的 MFC-2 产生了最高的库仑效率 27.2±3.6%和最高的功率密度 3.2±0.3Wm(-3)，消耗的能量最少为 0.11kWhm(-3)，这表明在处理和能源性能方面，MFC 可能更适合处理低强度废水。
