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Mushoffa Mushoffa
Bakti Indonesia University
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education

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BIOGAS PRODUCTION FROM FREE NUTRITIOUS MEAL PROGRAM KITCHEN WASTE THROUGH ANAEROBIC DIGESTION Mushoffa Mushoffa; M. Lutfi Alfian; Rima Suwistika
Bio-Lectura : Jurnal Pendidikan Biologi Vol. 13 No. 2 (2026): Bio-Lectura : Jurnal Pendidikan Biologi
Publisher : Universitas Lancang Kuning

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31849/kdh61m59

Abstract

The Indonesian Government's Free Nutritious Meals (Makan Bergizi Gratis; MBG) Program generates kitchen waste that may cause environmental problems if not properly managed. This study aimed to analyze the utilization of MBG kitchen waste for biogas production and evaluate its operational performance. The study was conducted using a 2,000-L biogas digester fed with kitchen waste from the Tamanagung Community Nutrition Service Unit (Satuan Pelayanan Pemenuhan Gizi; SPPG), Cluring, Banyuwangi, Indonesia. The waste was fed at 10 kg/day at a waste-to-water ratio of 1:1, with an inoculum consisting of 20 kg of cattle manure and 20 L of water. The start-up period lasted seven days, followed by 12 days of biogas production and utilization monitoring. The volume of utilized biogas was determined based on the average flow rate recorded every 10 min during stove operation. The results showed an average utilized biogas volume of 500 L/day, with an average flow rate of 5.90 L/min and an average stove operating time of approximately 85 min/day. The average operating pressure reached 80 mbar. These results indicate that MBG kitchen waste can be converted into biogas in quantities sufficient for direct use as an energy source. This utilization demonstrates the potential of MBG waste management for energy recovery and the implementation of a circular economy
Co-Authors M. Lutfi Alfian Rima Suwistika