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:
May. 13, 2003
Filed:
Nov. 10, 2000
Kenneth S. Gritton, Murray, UT (US);
Mark Bondiett, Sandy, UT (US);
Watermark Technologies, LLC, Sandy, UT (US);
Abstract
The methods and apparatus of embodiments of the present invention serve to precipitate dissolved inorganic arsenic from an aqueous solution. The pressurization/negative pressurization protocol promotes precipitation of dissolved inorganic arsenic. After pressurization/negative pressurization method is applied the newly created precipitates may be separated from the solution using known separation methods. Aeration of the solution prior to or during pressurization and addition of chemical oxidants and air injection prior to or during pressurization aid precipitation. The methods of embodiments of the present invention may be applied to batch-process and continuous, in-flow apparatus.