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:
Sep. 22, 1981
Filed:
Aug. 18, 1980
Applicant:
Inventor:
Mikkel G Mandt, Cedar Falls, IA (US);
Assignee:
Clevepak Corporation, White Plains, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F / ;
U.S. Cl.
CPC ...
2101953 ; 210202 ; 210605 ; 210903 ;
Abstract
Activated sludge treatment system for removal of pretreatment BOD and nitrogen values from waste water, utilizing a mixed liquor tank comprising a nitrate cracking channel zone, a denitrification channel zone and an aeration zone in specified relationship and adapted to provide specified operating conditions in the respective zones.