ALEXANDRIA, Va., July 16 -- United States Patent no. 12,358,000, issued on July 15.
"Methods of treating metal mine tailings" was invented by Douglas Morrison (Etobicoke, Canada) and Vernon Kent Drylie (Oakville, Canada).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed herein are methods of treating metal mine tailings. Embodiments of the method comprise separating the metal mine tailings into a highly contaminated fraction and a tolerable benign fraction, purifying the tolerable benign fraction and disposing the purified tolerable benign fraction within a managed environment, and sequestering the highly contaminated fraction in a sub-aqueous tailings management facility."
The patent was filed on Jan...