What is methanogenesis: archaea, biochemical pathways and operational control

Methanogenesis is the last of the four phases of anaerobic digestion and the one that produces methane. It is carried out by methanogenic archaea, of two types: acetoclastic (from acetic acid) and hydrogenotrophic (from H₂ and CO₂). They are slow microorganisms, sensitive to pH, temperature, redox potential and free ammonia, which is why methanogenesis is […]