Pengaruh Konsentrasi Chemical Oxygen Demand (COD) Dan PH Terhadap Kinerja Granular Activated Carbon Dual Chamber Microbial Fuel Cells (GAC- DCMFCs)

Abstract

Microbial Fuel Cells are devices to convert chemical energy into electrical energy by the catalytic reaction of microorganisms. MFCs performance can be affected by the COD and pH. In this study, variations of these two variables are used; the COD concentration of 400, 800, 1200 mg/L and pH 6, 7, 8. This system is accompanied by granular activated carbon (GAC) as an attachment media of bacteria in the anode chamber. The result showed that the amount of COD removed increasing as the concentration increased. For power density, increased by 132,0 and 245,0 mW/m2 when the COD concentrations are 400 and 800 mg / L. However, when the COD concentration is 1200 mg/L power density decreased to 206,0 mW/m2. The optimum conditions for the COD of 400 and 800 mg/L were at pH 7, whereas for the COD of 1200 mg/L were at pH 8 which capable of removing COD and produce electricity better