In this study kitchen bio waste and sewage sludge were co-digested anaerobically to produce biogas with the aid of Hycura, engineering granules to enhance bio methane production. Co-digestion was conducted for mesophilic temperatures of 37 °C in a 20 L bio digester for a period of 30 days. Kitchen and sewage sludge were inoculated in the ratio 50:50. Hycura was inoculated to enhance biogas production at a loading of 0.05 g/L. The co-digestion resulted in significant degrease of the total volatile solids and chemical oxygen demand of the bio waste by >75%. Mesophilic conditions favored high quality bio methane production with methane content as high as 74%. Inoculation with Hycura hindered H2S production which enhanced the quality of the biogas and makes it easier for upgrading.
Anaerobic Digestion of Kitchen and Sewage Sludge Bio waste to Biogas using Engineered Bio catalysis
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