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, 1997
Filed:
Jun. 24, 1996
Applicant:
Inventors:
Shigeaki Numata, Kawasaki, JP;
Souichi Shibuya, Kawasaki, JP;
Assignee:
Kawasaki Kasei Chemicals Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C02F / ;
U.S. Cl.
CPC ...
210759 ; 210763 ; 210916 ; 210919 ; 210928 ; 4232441 ;
Abstract
A method for the treatment of waste water, which comprises treating waste water containing at least a sulfide-type malodorous substance, in the presence of a transition metal compound and hydrogen peroxide or a hydrogen peroxide-forming compound, wherein at least an iron family element compound and a vanadium family element compound are used as the transition metal compound.