Revision as of 02:54, 26 March 2021

Basics

The conversion of waste material into material comparable to that of the original feedstock(s)
Mainly done with Glass , Metals , Paper / Engineered Wood Products , and Plastic
E-Waste Recycling is an emerging, and important area of recycling

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 *Mainly done with [[Glass Recycling | Glass]] ,  [[Metal Recycling | Metals]] ,  [[Paper Recycling | Paper]] / [[Engineered Wood Products]] ,  and [[Plastic]]
 *[[E-Waste Recycling]] is an emerging, and important area of recycling
-=Refining=
-Refining is the process of changing the composition of and removing impurities from a material.
-For example, hematite is a compound containing iron and oxygen; hematite can be refined into pure iron.
-The key to refining theory is to identify the different properties of the different substances that one wishes to separate.
-For example, if a mixture contains two substances of greatly differing densities, then a rough refining strategy could be to melt the mixture and then "scrape" the upper part of the molten mixture. When the mixture is in liquid form, the substance with lower density should flow to the top. If the substances have different colours when in liquid form, the colour-change line could signal when the scraping should stop.
-=Notes=
-*Paper, organic, glass, steel, aluminum, plastic, and trash are the residential material categories.
-*Steel, aluminum, and bronze are the industrial material categories.
-*Definitely separate different material types; separating different alloys is not so critical for certain cases (ex. different types of carbon steel no worries; but separating stainless steel from carbon steel is important)
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