Scientists looking for ways to flush out the valuable minerals from waste . These include gold , silver and elements such as palladium and vanadium . Waste from a million Americans could contain $ 12 million ( £8.7 million ) UK 's waste is worth an estimated $ 762 million ( £510 million ) a year .
Scientists looking for ways to flush out the valuable minerals from waste . These include gold , silver and elements such as palladium and vanadium . Waste from a million Americans could contain $ 12 million ( £8.7 million ) Britain 's waste is worth an estimated $ 762 million ( £510 million ) a year .