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. 09, 1982
Filed:
Dec. 21, 1979
Applicant:
Inventors:
Bruno Cabane, St. Cloud, FR;
Joel Vergnault, Argenteuil, FR;
Assignee:
PCUK Produits Chimiques Ugine Kuhlmann, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12N / ;
U.S. Cl.
CPC ...
435176 ; 435253 ;
Abstract
The present invention is directed to a process for biological denitrification of effluents, containing up to 10 g/l of nitric nitrogen, which comprises using an active denitrification support made of selected high performance denitrifying bacteria fixed on a neutral support.