Marmara University, Environmental Engineering Department, 34722 Goztepe, Istanbul, Turkey.
Bioresour Technol. 2013 Jan;128:266-72. doi: 10.1016/j.biortech.2012.10.035. Epub 2012 Oct 22.
Bio-electrochemical treatment of anaerobically pre-treated landfill leachate was investigated in batch and continuous-flow two-chambered microbial fuel cells (MFCs). A high strength young landfill leachate was pre-treated using an upflow anaerobic sludge blanket reactor and the effluent resembling medium-aged landfill leachate was fed to the anode chamber of MFCs. The highest maximum current and power densities achieved in continuous-flow MFC with hydraulic retention time (HRT) of five days were 525 mA/m(2) (8227 mA/m(3)) and 158 mW/m(2) (2482 mW/m(3)), respectively. Increase of HRT from one day to five days resulted in the occurrence of partial nitrification, where influent ammonia was converted into nitrite presumably due to the inhibitory effects of free ammonia. The maximum power and current densities obtained in this study were higher compared to other studies with similar leachate characteristics. The results of this study suggest that MFCs can be exploited as a polishing step for anaerobically pretreated landfill leachate.
采用批式和连续流双室微生物燃料电池（MFC）对厌氧预处理后的垃圾渗滤液进行了生物电化学处理研究。采用上流式厌氧污泥床反应器对高浓度年轻垃圾渗滤液进行预处理，将类似于中龄垃圾渗滤液的出水输送到 MFC 的阳极室。水力停留时间（HRT）为 5 天时，连续流 MFC 可实现的最大电流和功率密度分别为 525 mA/m(2)（8227 mA/m(3)）和 158 mW/m(2)（2482 mW/m(3)）。HRT 从 1 天增加到 5 天导致了部分硝化的发生，其中由于游离氨的抑制作用，进水氨可能转化为亚硝酸盐。与具有类似渗滤液特性的其他研究相比，本研究中获得的最大功率和电流密度更高。研究结果表明，MFC 可以作为厌氧预处理垃圾渗滤液的抛光步骤加以利用。
