 If you have a refrigerator with a refrigerant in it, it would be illegal to throw it into the waste dump. You would have to have it recycled. A technician would come to your home, plug into the plumbing system and suck it all out. At which point the refrigerants themselves could be recycled or destroyed. And we can also make an effort to do this with all the old appliances that are today hanging out in landfills.