And what about the not-so-typical stuff that we recycle separately, like batteries?
Batteries have to be handled very carefully because of the chemicals and metal they contain. Alkaline/zinc carbon batteries (aka "single use batteries) are smashed so their components (zinc & manganese Concentrate, steel, paper & plastic) can be separated out. The good news is, all of these products are put back into the market place for reuse in new products. A similar process is used for other types of batteries, but alkaline/zinc carbon are the only batteries that are 100 percent recycled.
another cool aspect to these facilities is the way they ingeniously sort materials from each other. they use air gusts, lasers, mechanical means and even electron streams to separate stuff out. the electron streams for example are used to sort magnetic from non magnetic metal.