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:
Aug. 08, 1995
Filed:
Apr. 22, 1994
Applicant:
Inventors:
Guy M Gehin, Ozoir-La-Ferriere, FR;
Oliver A Caillault, Chalon-Sur-Saone, FR;
Assignee:
Eastman Kodak Company, Rochester, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F / ;
U.S. Cl.
CPC ...
210748 ; 210759 ;
Abstract
The present invention relates to a process for eliminating the organic compounds from aqueous effluents having a chemical oxygen demand (COD) greater than 5 g/l. The process consists of treating the effluents with a sufficient quantity of light energy originating from a polychromatic UV source in the presence of H.sub.2 O.sub.2. The quantity of oxygen provided by the hydrogen peroxide expressed in grams per liter is between 0.5 and 3 times the COD of the effluent to be treated and the pH is equal to or less than 10.5. This process applies to photographic effluents.