Power generation in a cascade of five hydraulically and electrically connected microbial fuel cells.

4 Abstract: In this paper bioelectricity production for more than 20 days in a two-chambered microbial fuel cell (MFC) packed with granule activated carbon (GAC) was investigated. The system consisted of five individual MFC units that were hydraulically connected by feed flow and electrically connected either in series or parallel and operated in continuous mode. Glucose as substrate with a concentration of 1 g/l and anaerobic sludge were used for power generation. 400 µM of potassium permanganate was used in the cathode chambers as an electron acceptor. The maximum power density generated in the MFC was 989.70 mW/m , with respect to the 3