My friend Howard who is in the garbage business wants to extract metals from acid mine drainage. I don't think it is economic. The DEP may require him to completely clean up the waste stream after partially cleaning it up while extracting metals. This is a non starter.
Howard showed me something interesting. He get two types of plastic in the trash. HDPE milk bottle like plastic and XLP clear soda like bottle plastic. The waste stream is worth a lot more if he can automatically separate the two types of plastic. Now you see where my cold fusion effects have taken me; to the junk yard. Any ideas? Frank