TY - JOUR ID - TI - Physical Properties of Biogas Produced by Anaerobic Treatment of Household Waste in Samarra City for Thermal Energy Production AU - Shareef F.S. Al-tikrity, Qutaiba M. H. Ali PY - 2023 VL - 19 IS - 2 SP - 38 EP - 42 JO - Iraqi Journal of Applied Physics المجلة العراقية للفيزياء التطبيقية SN - 18132065 23091673 AB - In this study, an anaerobic digestion (AD) system was used to generate biogas from organic waste collected in Samarra city throughout the anaerobic digestion process. The fermentation process was performed in the form of four batches and a retention period of 25 days. The highest cumulative biogas production quantity was obtained at 60.001L for a 1:2 mixing ratio in summer and the lowest production quantity was 32.152L for a 1:4 mixing ratio in winter. This result may be attributed to the increase in production, which is related to the rise in temperature. The average temperature inside the digester was 32-43°C in winter and 45-56°C in summer. The change in the pH value and its active role in the process of decomposition of organic waste was also observed when the pH value was ranging within 7.2-7.7.

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