title: Anaerobic digestion in biological waste treatment.
mesh_terms: D001419:Bacteria / Q000145:classification / Q000378:metabolism*; D055598:Chemical Phenomena; D002621:Chemistry; D006863:Hydrogen-Ion Concentration; D007220:Industrial Waste; D008697:Methane / Q000096:biosynthesis; D008962:Models, Theoretical; D010100:Oxygen; D013696:Temperature; D014871:Water Microbiology
chemical_list: D007220:Industrial Waste; D008697:Methane; D010100:Oxygen