Anaerobic digester temperature control: stability and oscillations
Temperature is the most critical environmental variable of an anaerobic digester. A mesophilic digester works at 35-40 °C with a practical tolerance of ±2 °C; a thermophilic one, at 50-55 °C with only ±1 °C. Methanogenic archaea are very sensitive to oscillations: a 5 °C deviation can cut production by up to 40 % and […]