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A comment on Plastics: What's Recyclable, What Becomes Trash and Why. Parent comment
Not much more than melting existing glass. It's not like aluminum, where melting is much cheaper than refining in the first place.
> glass impurities can be handled (purified)
It's much easier to handle impurities when you start with clean sand.
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Not much more than melting existing glass. It's not like aluminum, where melting is much cheaper than refining in the first place.
> glass impurities can be handled (purified)
It's much easier to handle impurities when you start with clean sand.