This study investigates simultaneous power generation and Congo red dye degradation in a double chamber microbial fuel cell using carbon rods obtained from spent zinc-carbon (1050-D) batteries as the electrodes. Electrochemical analyzes such as cyclic voltammetry and electrochemical impedance spectroscopy confirm the feasibility of using spent carbon rods (SCR) as the electrodes. The effects of initial Congo red dye (anolyte) concentration (100–500 mg L⁻¹) and choice of catholyte (KMnO₄ and K₂Cr₂O₇) on the performance of the microbial fuel cell were analyzed. A maximum power density of 0.90 Wm⁻² was obtained for an anolyte concentration of 300 mg L⁻¹ of Congo red dye and a catholyte concentration of 100 mg L⁻¹ of KMnO₄. Maximum chemical oxygen demand removal of 85% and color removal of 98% were obtained under optimized conditions. The obtained results show that spent carbon rods from batteries possess excellent potential as working electrodes in a microbial fuel cell.

这项研究调查了使用废锌碳（1050-D）电池获得的碳棒作为电极在双室微生物燃料电池中同时发电和刚果红染料降解的情况。电化学分析（例如循环伏安法和电化学阻抗谱）证实了使用废碳棒（SCR）作为电极的可行性。分析了刚果红染料（阳极电解液）的初始浓度（100-500 mg L ^-1）和阴极电解液的选择（KMnO ₄和K ₂ Cr ₂ O ₇）对微生物燃料电池性能的影响。对于300 mg L ^-1的阳极电解液浓度，可获得0.90 Wm ^-2的最大功率密度刚果红染料的浓度和100 mg L ^-1的KMnO ₄的阴极电解液的浓度。在优化的条件下，可获得最大的化学需氧量去除率达85％，颜色去除率达98％。所得结果表明，来自电池的废碳棒具有极好的潜力，可作为微生物燃料电池中的工作电极。