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:
Dec. 30, 2003
Filed:
Jul. 20, 2001
Applicant:
Inventors:
Antonio Pasquale, Novara, IT;
Carlo Rubini, San Fermo Della Battaglia, IT;
Michele Rossi, Peschiera Borromeo, IT;
Luigi Cavalli, Novara, IT;
Assignee:
Sud Chemie MT S.r.l., Milan, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F 3/00 ;
U.S. Cl.
CPC ...
C02F 3/00 ;
Abstract
A method for denitrification of water, in which the water to be denitrified is made to flow over a porous carrier which comprises a transition metal, preferably palladium, used in an amount between 0.01 and 5% by weight on the carrier and on which denitrifying bacterial strains capable of surviving in the presence of hydrogen are made to adhere, and in which hydrogen is used as a reducing agent and the pH of the reaction is adjusted to values of 4.5 to 7.8 preferably by using carbon dioxide.