What is single-stream recycling?
Single-stream recycling is a system in which all recyclables, including newspaper, cardboard, plastic, aluminum, junk mail, etc., are placed in a single bin or cart for recycling. These recyclables are collected by a single truck and taken to a Materials Recovery Facility (MRF) to be sorted into various commodity streams for sale to markets, where it is processed into feedstock which can be used in the manufacture of new products.
This is an excerpt from Container Recycling Institute's official website article. To make the best use of the inline links, please check the original site: http://www.container-recycling.org/index.php/issues/single-stream-recycling