초록
<P><B>Abstract</B></P> <P>Co-digestion in anaerobic fermentation has been widely used to improve biogas production. The biogas production from co-digestion of glucose and glycerol was studied in laboratory-scale batch reactors under mesophilic temperatures, pH 7. The batch experiments involved a variation of glycerol/glucose ratios with initial chemical oxygen demand (COD) for all conditions was fixed at 5,200 mg L<SUP>−1</SUP>. The highest yield of biogas production was obtained from glycerol/glucose with 5:5 ratio. The cumulative biogas production was 298.2 mL, and the maximum production rate was 8 mL hr<SUP>−1</SUP>. The findings suggested that co-digestion is a potential method to achieve glycerol waste treatment and energy recovery at the same time.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Co-digestion of glycerol and glucose suited for waste treatment and energy recovery </LI> <LI> Optimum methane yield obtained from 1:1 mass ratio of glycerol and glucose </LI> <LI> Glucose as co-substrate enhance the methane yield in the glyerol fermentation </LI> </UL> </P>