Originally Posted by
Winemaker
I've wondered about that; we use glycol in our cooling system at the winery and it's very expensive, about $1000/50 gallons or so. I looked at airport de-icing systems and it seems that glycol is not separated and reused but is eventually flushed down the drain. Are there systems to recycle glycol? That must be a huge bill at someplace like ORD.
There are systems being developed and in place but not widely used at the majority of airports across the globe.
From what I gather, ballpark figures for Type 1/Type 4 figures are purchase for $2 a litre and sell for $5 a litre... Taking into account Type 1 fluid is mixed with water, anything down to 30/70 if your temps don't get much below freezing.
Liquid gold