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:
Jan. 19, 1993
Filed:
Jun. 06, 1991
Ralph A Polasky, Ripon, WI (US);
Ametek, Inc., Sheboygan, WI (US);
Abstract
An iron removal system for a drinking water supply includes a synergistic combination of an oxidation/filtration unit and an activated carbon filter unit. The oxidation/filtration unit utilizes a manganese-treated zeolite in the form of normally undesirable fines. The problems of high pressure drop and difficult handling of zeolites fines are eliminated by utilizing a more porous radial tubular flow construction in which the fines are confined in a packed bed. The filter cartridge is made for disposal when exhausted. The series connected activated carbon filter continues to remove iron from the outlet of the zeolite filter long after the capacity for iron removal of the latter has exceeded desirable limits. The combined filter system is less expensive and easier to operate and maintain than a comparable regenerable prior art oxidation/filtration system for iron removal.