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. 27, 2007
Filed:
Aug. 04, 2005
Robert G. Roodman, Ellwood City, PA (US);
Jack Smiley, Monaca, PA (US);
J. Michael Havelka, Follansbee, WV (US);
Robert Scherrer, Pittsburgh, PA (US);
Robert G. Roodman, Ellwood City, PA (US);
Jack Smiley, Monaca, PA (US);
J. Michael Havelka, Follansbee, WV (US);
Robert Scherrer, Pittsburgh, PA (US);
Envirotrol, Inc., Darlington, PA (US);
Abstract
An activated carbon composition is disclosed, which includes an activated carbon and a carboxylic acid containing compound. The activated carbon composition is prepared by immersing an activated carbon in an aqueous solution of a carboxylic acid containing compound. The activated carbon composition is used for purifying aqueous solutions by providing a bed of the activated carbon composition and passing the aqueous solution through the bed of the activated carbon composition. The aqueous solution is passed through the bed such that the flow of the aqueous solution to be purified into the bed and the flow of purified aqueous solution from the bed has a pH differential less than ±1 pH.