What happens to digester gas when it is mixed with air in proper proportions?

When digester gas is mixed with air in the right proportions, it indeed becomes extremely explosive. This mixture is known as a combustible gas mixture, which can create a significant explosion hazard if ignited. The primary components of digester gas are methane and carbon dioxide, with methane being highly flammable. When combined with oxygen from the air, a flammable range is achieved that can lead to explosive reactions if there is an ignition source.

Understanding this dynamic is crucial for wastewater treatment operators, as they must implement safety measures to avoid hazardous situations. Proper monitoring and control of digester gas concentrations are essential in preventing the formation of dangerous gas mixtures that could lead to explosions.