How to recycle plastics

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Revision as of 15:26, 11 August 2018 by Rnordin (Talk | contribs) (initial commit)

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Overview

Various methods for recycling plastics as we learn about them.

Float sorting

  1. Shred the plastic bottles, caps and all.
  2. Dump into a hot water bath
    • this both cleans and sorts because the caps are made from a HDPE, which floats, and the PET the bottle is made from sinks
  3. Skim the HDPE off the top and store seperately
  4. Remove the remaining plastic from the bottom of the hot water bath
    • this should be PET plastic and labeling
  5. Take the PET and labeling mix and put into another water bath containing caustic soda ([hydroxide] or lye)
    • this removes the labeling which then floats to the top
  6. Skim off the labeling
  7. Remove and rinse the now clean plastic
    • rinsing cleans off the caustic soda
  8. Dry the plastic