Evaluating the Potential of Multi-Anodes in Constructed Wetlands Coupled with Microbial Fuel Cells for Treating Wastewater and Bioelectricity Generation under High Organic Loads

Multiple anodes can significantly enhance the treatment potential of constructed wetlands coupled with a microbial fuel cell (CW-MFC) system, which has not yet been explored. Thus, present study evaluates multi-anodes and single cathode-based CW-MFC at higher organic loading rates for performance bioelectricity generation. For this purpose, two identical but different materials, i.e., graphite granules (GG) granular activated charcoal (GAC), were used to set up multiple CW-MFCs. The (GG)-based system is named (GG), (GAC) based as (GAC). These systems evaluated chemical oxygen demand (COD), NH4+-N removal efficiency, electrical output relatively 890.11 g COD/m3-d 1781.32 COD/m3-d. At an OLR COD/m3-d, efficiency was found be 24.8% more in than whereas it 22.73% when increased Whereas, 56.29 ± 7% 56.09 3.9%, compared 36.59 3.8% 50.59 respectively. A maximum power density 48.30 mW/m3 current 375.67 mA/m3 produced under rate