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:
Nov. 02, 1999
Filed:
Oct. 24, 1997
Applicant:
Inventors:
Tatsuo Sumino, Tokyo, JP;
Nobuko Hashimoto, Tokyo, JP;
Kazuhiko Noto, Tokyo, JP;
Takako Ogasawara, Tokyo, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F / ;
U.S. Cl.
CPC ...
210616 ; 210618 ; 210620 ; 210631 ; 210757 ; 210903 ;
Abstract
Waste water containing ammonium nitrogen is brought into contact with either one of a catalytically acting substance for converting an ammonium oxidizing product produced by being oxidized by oxidizing bacteria for oxidizing ammonium nitrogen or converting bacteria for reproducing converting capacity of the catalytically acting substance in the aerobic condition.