Reusing materials in the post-consumer phase of a product is very important
; however, it is often difficult to separate the met als, resulting in a sc
rap that is high in impurities and limited in application. To prevent the m
ixing of scrap, separation at the source is required. Recently, several tec
hniques for separating nonferrous metals have become available, including e
ddy-current separation to separate Nonferrous metals from a mixture of wast
e,fluid-bed separation to separate light and heavy metals, and image analys
is to separate cast and wrought alloys.