Data concerning post-consumption items is collected from RF tags. RF tags applied to goods and materials that have been consumed or used and/or discarded or stored for recycling are read by a reader. The reader collects data from the tag and stores the data and/or transmits the collected data to a computing device such as a building management or host computer. A computing device associated with the reader may also retrieve data associated with the RF tag from one or more datastores of information concerning the post-consumption item. Additional processing may be performed to determine the composition and other attributes of the item or material. Based upon the data retrieved from the RF tag, and optionally, data in the datastore(s), and/or processing occurring within the associated computing device, characteristics including the composition and nature of the post-consumption items, location of the items and other characteristics and associated information are determined. The data may be collected, sorted, processed, and provided for sale.