An Anaerobic Digestion (AD) plant biologically processes organic matter—such as livestock manure, food waste, agricultural residues, and sewage sludge—in the absence of oxygen. Through microbial activity, the feedstock is broken down inside sealed digesters, producing biogas (mainly methane and carbon dioxide) and digestate, a nutrient-rich byproduct. https://keronebiochar.com/anaerobic-digestion-plants/