Selection of Convenient Organic Matters for Bioenergy Generation: A Comparative Approach

Abstract

This paper focuses on selecting the most convenient bioenergy production from four different organic matters: cow dung, food waste, flower waste, and fruit waste. The co-digestion process is used to produce biogas from wastes. Waste decomposes quickly after co-digestion and attains higher methane percentages in a specific time. This paper determines the ability to produce bioenergy considering the attained methane percentage from each waste slurry. A floating drum plant-type portable biogas plant is used in the research work to produce biogas from each waste slurry. A portable biogas analyzer machine is used to measure the percentage of produced methane, carbon dioxide (CO2), oxygen (O2), and hydrogen sulfide (H2S). The result shows that the highest percentage of methane (65.3%) is obtained from food waste slurry within 20 days, whereas cow dung gets the methane percentage as 54%. The calorific value of food waste and cow dung for producing biogas is 333.57 kWh/m3 and 275.4 kWh/m3, respectively that indicates the food waste as the most convenient source of bioenergy generation than others.