ABSTRACT
Organic materials comprise the majority of municipal solid waste (MSW) generated in the United States, accounting for about 139 million tons (56%) of the waste stream (U.S. EPA 2011a). Certain organics such as newspaper, ofce paper, and corrugated cardboard are recovered extensively for recycling. Other potentially useful materials (e.g., yard waste, food scraps, mixed paper), however, may be lost from the recycling loop and become landlled.
