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Jin, Y. and P. C. Chiu. Removal of Microorganisms and Disinfection Byproduct Precursors Using Elemental Iron or Aluminum. U.S. patent (US11/375,206, pending), Foreign patent (Canada, Germany, France, Switzerland) pending. (This invention was selected as one of the seven innovations showcased in NASA’s Tech Briefs, “2007 The Year in Technology”
(http://www.udel.edu/PR/UDaily/2008/dec/nasa120707.html; www.techbriefs.com)