Harvesting biogas from wastewater sludge and food waste

• Main Authors: Chua K.H., Cheah W.L., Tan C.F., Leong Y.P.
• Other Authors: 36926581400
• Format: Conference paper
• Published: Institute of Physics Publishing 2023
• Subjects: Biogas; Renewable energy resources; Temperature; Anaerobic treatments; Biogas generation; Effect of temperature; Effects of temperature; Food waste; Lower temperatures; Renewable energy source; Wastewater sludge; alternative fuel; anoxic conditions; biogas; food; recycling; sludge; temperature effect; wastewater; Waste treatment
• Institution: Universiti Tenaga Nasional

Wastewater sludge and food waste are good source of biogas. Anaerobic treatment of slude and food waste able to produce biogas which is a potential renewable energy source. This study looks into the potential biogas generation and the effects of temperature on biogas generation. A lab scale reactor was used to simulate the biogas generation. The results show that wastewater sludge able to produced upto 44.82 ml biogas/kg of sludge. When mixed with food waste at a ratio of 30:70 (food waste), the biogas generated were 219.07 ml/kg of waste. Anaerobic of food waste alone produced biogas amount to 59.75 ml/kg of food waste. Anaerobic treatment also reduces the volume of waste. The effect of temperature shows that higher temperature produces more biogas than lower temperature. � Published under licence by IOP Publishing Ltd.