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Abstract
Dual chambered, salt bridge microbial fuel cells (MFCs) with aerated catholyte (MFCAC), phosphate catholyte (MFCPC) were designed. The efficiency of catholytes on bioelectricity production and substrate removal were evaluated by employing food-processing wastewater as anolyte. Experimental results proved that MFCAC was better than MFCPCM by producing a maximum power density of 123.8 mW/m2, current density of 54.3 mA/m2, power yield of 110 mW/kg and COD removal of 98.9%.