They have two drop-of locations, where residents can drop off glass "for crushing and reuse as construction and landscaping material."
(https://newsroom.arlingtonva.us/release/arlington-shifting-g...)
As for recycling glass into other glass, I can't say.
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.
Also glass is very heavy when compared to a similar strength container made of plastic. That is why plastic took over the market.
