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:
Apr. 25, 2000
Filed:
Nov. 18, 1998
Michael H Kim, Ellicott City, MD (US);
Joseph J DeFrank, Bel Air, MD (US);
The United States of America as represented by the Secretary of the Army, Washington, DC (US);
Abstract
A process for biodegradation of an amine compound by contacting the amine mpound with a consortium of microorganisms effective for consuming carbon and nitrogen components of the amine compound under aerobic conditions, wherein the enzymatically degraded the amine compound forms an ammonia residue, nitrifying the ammonia residue under aerobic conditions, wherein the ammonia residue forms nitrite and nitrate residues and denitrifying the compound with the addition of a supplementary carbon source under anoxic conditions. The amine compound may be DS2 or similar amine structures. The microorganisms include Bacillus circulans, the genera Nitrosomonas, and the genera Nitrobacter. The process is a continuous-fed process in a bioreactor. A composition of microorganisms comprising Bacillus circulans, the genera Nitrosomonas, the genera Nitrobacter, and facultative heterotrophic denitrifiers effective to degrade DS2 also is disclosed.