And add telephone poles and bio-fuel to that list. Whats next? High-efficiency Porous Ceramics Bio-Reactors (PCBRs) and high-efficiency Biological Aerated Filters(BAFs) to reclaim precious and semi-precious metals from factory waste water?
Sounds impressive until you actually realize that a porous ceramic bio-reactor and biological aerated filter is a toilet / septic tank part that may possibly be used to trap, capture and remove gold rings and jewelry from the feces in a water treatment plant or out of a toilet / septic system.
Think about how many diamond rings are actually swallowed each year.. We may need to purchase a warehouse in West Virginia or something..