A Study on Quality of Biogas for Households in Cambodia Lowland Agricultural

Biogas is produced through the anaerobic decomposition of organic    matter, such as manure and agricultural waste. The primary objective of this research is to assess the quality, composition, and volume of gases generated through the conversion of both manure and vegetable waste. We conducted experiments under three different conditions: the first condition involved using 10 kg of cow dung mixed with 10 liters of water, the second condition used cow dung mixed with   10 kg of pig manure and an additional 10 liters of water, and the third condition utilized cow dung mixed with 10 kg of vegetable waste, along with 10 liters of water. After completing all three experiments, the results consistently demonstrated that the conversion of pure cow dung into biogas yielded the most promising results in comparison to the other two conditions. It produced a total gas volume of up to 0.391 m3 and a methane content of 69.18%. These findings underscore the pivotal role of cow dung as a raw material in the biogas conversion process examined in this study. As anticipated, pure cow dung exhibited the highest yield in this experimental context.