What temperature range is typical for a mesophilic digester?

A mesophilic digester typically operates within the temperature range of 59 to 113°F (15 to 45°C). This temperature range is optimal for the activity of mesophilic bacteria, which play a crucial role in the anaerobic digestion process. These bacteria thrive at moderate temperatures, making them effective at breaking down organic matter in wastewater. Operating within this range helps maintain a stable environment that enhances the efficiency of the digestion process, leading to better biogas production and a reduction in harmful pathogens.

The other temperature ranges provided do not align with the requirements for mesophilic digestion. Lower temperatures would not promote the activity of these bacteria effectively, while higher temperatures align more with thermophilic digestion, which involves different bacterial processes and requires a different management approach.