When poultry manure is converted into biogas, what does it contain almost 30% of?

When poultry manure undergoes anaerobic digestion to produce biogas, it generates a gas mixture that is primarily composed of methane and carbon dioxide. Among these components, biogas typically contains about 30% carbon dioxide.

Methane is a major product of this process, often constituting around 60-70% of biogas, while carbon dioxide amounts to approximately 30%, indicating its significant presence in the gas output. The process also produces trace amounts of other gases, such as hydrogen sulfide, but these are not as predominant as carbon dioxide.

Understanding the composition of biogas is crucial for applications in energy production, as both methane and carbon dioxide play different roles in energy generation and environmental impact. This knowledge is essential for effective management of poultry waste and optimizing the energy potential from biogas production.