alt Hacker NewsOne thing about salt domes: they almost by definition are surrounded by very low-permeability dry soils. Because otherwise they would have dissolved long ago!
And a related way to use salt domes is for natural gas storage.
Replies
CamperBob2 • today at 1:38 AM
And even helium, which is famous for its ability to leak out of almost any container you put it in.
The US formerly maintained a National Helium Reserve (https://en.wikipedia.org/wiki/National_Helium_Reserve), in fact, until we decided that a helium reserve wasn't all that useful or important.
➕ show 1 reply
Another related way is to store nuclear waste. The properties (as described in this article, impermeable/self sealing etc.) sound great until the reality that water dissolves salt comes knocking and further confronts you with the reality that salty brine corrodes nuclear waste barrels...