Title: Production of Biogas Using the Anaerobic Digestion of Cassava Peels with Cow Dung as an Inoculum
Authors: Raymond Alex Ekemube, LoveGod Anthony Eke, Preye Kingsley Nimame, Peju Zainab Adekojo
Volume: 9
Issue: 5
Pages: 333-338
Publication Date: 2025/05/28
Abstract:
This study explores the production of biogas through the anaerobic digestion of cassava peels (CP) and cow dung (CD) as an inoculum. The experiment utilized a 1.5 L biodigester loaded with different CP:CD ratios (100:0, 0:100, 70:30, 30:70) under mesophilic conditions (36°C) for 20 days. Physicochemical properties, including pH, moisture content, total solids, volatile solids, total nitrogen, total carbon, and phosphorus, were analyzed. Biogas production was monitored daily using a 50 mL syringe, and gas composition was determined via gas chromatography. The results indicated that biogas yield was highest at 70:30 CP:CD ratio, producing 117.75 mL of gas, with methane content reaching 57%. Statistical analysis using ANOVA confirmed significant differences (p < 0.05) between treatments, highlighting the impact of substrate composition on gas yield. The study demonstrates that co-digestion of cassava peels with cow dung enhances biogas production, providing an efficient way to convert agro-waste into renewable energy. Further studies should investigate large-scale implementation and optimization of digestion parameters to improve biogas yields.