Do they recycle the sand ? If not, what other uses are there for it ?
How about crunched up coal ? Could that be used instead of sand in the fractures in fracking ?
What could be used instead of sand and be cheaper ?
How about pulverizing the rocks or gravel in the area ? Would that costs more than shipping in sand ?
The sand stays in the ground to prop the cracks open.
On an earlier thread, I was wondering about recyled glass - but not sure how easy it is to make. I mean - you can go to the craft store and buy all sorts of sizes of glass beads - but don’t know if it would be cheaper than mining the sand.
Pretty much anything would have to be shipped.
I would assume the answers to your questions are found in general practice. That which works best...and is most efficient...will be what is employed.