| 20080202993 | METHOD AND APPARATUS FOR TREATING SOLID WASTE - An apparatus for treating solid waste to produce a biomass product includes a cylindrical vessel includes a cylindrical vessel comprising a loading doorway and a discharge doorway at opposite ends of the cylindrical vessel. At least two drive tires are mounted on the cylindrical vessel perpendicular to the cylindrical axis. The drive tires each include a smooth exterior surface for rotating the cylindrical vessel without gear teeth and without sprocket teeth. A drive mechanism is coupled to the drive tires for rotating the cylindrical vessel around the cylindrical axis. The drive mechanism includes drive wheels that support and provide torque to the cylindrical vessel from a contact surface on each of the drive wheels that contacts the exterior surface of the drive tires. | 08-28-2008 |