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:
Nov. 21, 2006
Filed:
Feb. 10, 2006
David M. Teter, Edgewood, NM (US);
Patrick V. Brady, Albuquerque, NM (US);
James L. Krumhansl, Albuquerque, NM (US);
Nadim R. Khandaker, Albuquerque, NM (US);
David M. Teter, Edgewood, NM (US);
Patrick V. Brady, Albuquerque, NM (US);
James L. Krumhansl, Albuquerque, NM (US);
Nadim R. Khandaker, Albuquerque, NM (US);
Sandia Corporation, Albuquerque, NM (US);
Abstract
An improved water decontamination process comprising contacting water containing anionic contaminants with an enhanced coagulant to form an enhanced floc, which more efficiently binds anionic species (e.g., arsenate, arsenite, chromate, fluoride, selenate, and borate, and combinations thereof) predominantly through the formation of surface complexes. The enhanced coagulant comprises a trivalent metal cation coagulant (e.g., ferric chloride or aluminum sulfate) mixed with a divalent metal cation modifier (e.g., copper sulfate or zinc sulfate).