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Published online by Cambridge University Press: 28 April 2015
Recycling can recover the value of solid waste materials. Recycling reduces solid wastes, conserves virgin materials, and preserves and improves environmental quality. Ideally, it has been stated that “what we must aim for essentially is a steady-state world, one in which per capita consumption has virtually leveled off and the goods used are for the most part produced from recycled materials” [6]. Trends in recycling, however, are not encouraging, and, in fact, resource recovery is losing ground [3, 7].
Currently, recycling is largely that of relatively homogeneous waste materials. The Council on Environmental Quality has identified over 50 systems in various stages of development aimed primarily at the technology of recovering materials from mixed wastes [7].