Patent ID: 7250287

Claim:
An aerobic digestion method for treating biodegradable solid waste comprising: providing a liquid containment structure for holding a volume of biodegradable solid waste; providing said liquid containment structure with a liquid introduction system and a liquid collection system, said liquid introduction system including a mixing system for creating oxygen-enriched liquid; filling said liquid containment structure with a volume of biodegradable solid waste; providing a source of liquid; providing a source of air or oxygen; mixing said source liquid and said air or oxygen using said mixing system to create an oxygen-enriched liquid; introducing said oxygen-enriched liquid into said volume of solid waste using said liquid introduction system to contact said volume of solid waste so as to aerobically degrade said volume of solid waste into processed waste, wherein said mixing step is performed at the point of introduction of the oxygen-enriched liquid into the volume of solid waste and during said introducing step; and collecting any excess liquid within the volume of solid waste using said liquid collection system.