The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 21, 2012
Filed:
Feb. 11, 2009
May D. Nyman, Albuquerque, NM (US);
Thomas A. Stewart, Albuquerque, NM (US);
May D. Nyman, Albuquerque, NM (US);
Thomas A. Stewart, Albuquerque, NM (US);
Sandia Corporation, Albuquerque, NM (US);
Abstract
Substitution of a single Ga-atom or single Ge-atom (GaAland GeAlrespectively) into the center of an aluminum Keggin polycation (Al) produces an optimal water-treatment product for neutralization and coagulation of anionic contaminants in water. GaAlconsistently shows ˜1 order of magnitude increase in pathogen reduction, compared to Al. At a concentration of 2 ppm, GaAlperforms equivalently to 40 ppm alum, removing ˜90% of the dissolved organic material. The substituted GaAlproduct also offers extended shelf-life and consistent performance. We also synthesized a related polyaluminum chloride compound made of pre-hydrolyzed dissolved alumina clusters of [GaOAl(OH)(HO)].