I believe there may be some confusion. Can you clear up for me?
Original Post: "Can metal or glass shot be recycled?" My assumption is you wish the used shot to be cleaned, and returned to you ready for re-use. Or perhaps, sold for re-use by others. Are either of these correct?
"...and what is the cost?" My assumption is you wish to have a guess how many dollars to clean and return the used shot. Is this correct?
If these assumptions are correct, I further believe you are in for a surprise (and not the good kind). I await your response.
I misstated my question. I have shot that cannot be used because it has degraded so much that I wanted to sell as scrap. Can the shot be melted? Or does it vaporize when heated because it is so small. Obviously, I am a layman here. It seemed to me to be an opportunity. The companies I am involved with indicate that they have not been able to find a buyer for their used shot.
You will probably have trouble finding anyone who will take the used blast media, primarily due to the unknown (to the recycler, anyway) stuff mixed into the SBM. Is it lead paint? Is it epoxy and rust? If someone accepts your used media and slough, they may become the parent of a bouncing baby HAZ-MAT disposal problem.
This is simply a guess; I suspect you will have to test the used media, and then dispose of the waste at some approved site. This suspicion is reinforced here, at the Michigan DEQ site regarding Used Blasting Media:
"4. The wastes collected and stored in the waste containers shall be representatively sampled and tested in accordance with the Toxicity Characteristic Leachate Procedure as found in "Test Methods for the Evaluation of Solid Waste, Physical/Chemical Methods," being EPA publication SW-846, 3rd Edition, to determine if the collected wastes are hazardous wastes under State and Federal law.
5. After testing, hazardous waste shall be properly transported and disposed at a hazardous waste disposal facility licensed under Part 111 of NREPA and solid waste shall be disposed at a landfill licensed under Part 115 of NREPA, or in accordance with permits and approvals granted under other applicable State and Federal environmental laws."
Cost to you? Somewhere between a ton of money, and a whole bunch of money. I think it is pretty optimistic to hope for a return for the metal recycle value.