Pradhan Harapriya, Ghangrekar M M
Department of Civil Engineering, Indian Institute of Technology, Kharagpur 721302, India E-mail:
Water Sci Technol. 2014;70(12):1948-54. doi: 10.2166/wst.2014.438.
A five-chamber microbial desalination cell (MDC) with anode, cathode, one central desalination chamber and two concentrate chambers separated by ion exchange membranes was operated in batch mode for more than 60 days. The performance of the MDC was evaluated for chemical oxygen demand (COD) removal, total dissolved solids (TDS) removal and energy production. An average COD removal of 81 ± 2.1% was obtained using acetate-fed wastewater as substrate in the anodic chamber inoculated with mixed anaerobic sludge. TDS removals of 58, 70 and 78% were observed with salt concentration of 8, 20 and 30 g/L, respectively, in the middle desalination chamber. The MDC produced a maximum power output of 16.87 mW/m(2) during polarization. The highest Coulombic efficiency of 12 ± 2.4% was observed in this system using mixed anaerobic sludge as inoculum. The system effectively demonstrated capability for simultaneous organic matter removal and desalination along with power generation.
一个具有阳极、阴极、一个中央脱盐室和两个由离子交换膜隔开的浓缩室的五室微生物脱盐电池（MDC）以分批模式运行了60多天。对该MDC的性能进行了化学需氧量（COD）去除、总溶解固体（TDS）去除和能量产生方面的评估。在接种混合厌氧污泥的阳极室中，以乙酸盐为底物的废水平均COD去除率达到81±2.1%。在中间脱盐室中，盐浓度分别为8、20和30 g/L时，TDS去除率分别为58%、70%和78%。该MDC在极化过程中产生的最大功率输出为16.87 mW/m²。使用混合厌氧污泥作为接种物，该系统观察到的最高库仑效率为12±2.4%。该系统有效地展示了同时去除有机物、脱盐以及发电的能力。
Zotero 插件