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:
Mar. 11, 2008
Filed:
Dec. 06, 2004
Rodolfo Vignola, Monterotondo-Roma, IT;
Umberto Cova, Rome, IT;
Gino Della Penna, Monterotondo-Roma, IT;
Raffaello Sisto, Rome, IT;
Rodolfo Vignola, Monterotondo-Roma, IT;
Umberto Cova, Rome, IT;
Gino Della Penna, Monterotondo-Roma, IT;
Raffaello Sisto, Rome, IT;
Enitecnologie S.p.A., San Donato Milanese, IT;
Abstract
A process is described for the treatment of water contaminated by apolar organic compounds and/or by heavy metals, which consists in circulating the water through a system comprising at least two types of zeolites having a silica/alumina ratio >50, placed in succession, wherein the first zeolite through which the water is passed is characterized by a high absorption capacity and structural channel dimensions ranging from 7 to 50 Å, whereas the second is characterized by a high removal capacity of molecules with a molecular diameter comparable with structural channel dimensions ranging from 5 to 7 Å.