Could municipal biosolids be a trove of tiny treasure? Heather Lowers, USGS Denver Microbeam Laboratory October 1, 2015 Mining for metals in society’s waste Kathleen S Smith, U.S. Geological Survey; Geoffrey Plumlee, U.S. Geological Survey, and Philip L Hageman, U.S. Geological Survey Mining waste rock from historic mines or even treated sewage to find useful metals and minerals could be a sustainable way to meet demand for these finite resources.
