What is an Anaerobic Digester?

Anaerobic digestion is a natural biological process used in waste management and renewable energy production. The biogas generated can be used to produce electricity, heat, or renewable natural gas, while the digestate can be applied as fertilizer. This process differs from composting, which occurs in the presence of oxygen and primarily produces soil amendments rather than energy. Anaerobic digesters are common at wastewater treatment plants, farms, and industrial food facilities, contributing to circular economy and greenhouse gas reduction goals.