Patent ID: 8110106

Claim:
An apparatus for the anaerobic digestion of solid waste comprising: a pre-digestion treatment chamber wherein a liquid suspension of solid waste is heated to a desired pre-digestion temperature and exposed to aerobic conditions, wherein the pre-digestion treatment chamber comprises one or more inlets to add one or more chemical or biological additives as needed to the suspension of solid waste selected to provide a desired C:N ratio in the solid waste and to improve the anaerobic digestibility of the solid waste; and an anaerobic digester chamber coupled to the pre-digestion treatment chamber at a digester chamber inlet to receive the liquid suspension of solid waste, said anaerobic digester chamber comprising: a floor, walls, and a ceiling; a digester chamber outlet wherein a suspension of digested waste solids exit the digester; and one or more gas collection ports to collect gas produced in the anaerobic digester.