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:
Jan. 25, 1983
Filed:
Feb. 05, 1981
Applicant:
Inventor:
William P Marsland, Spring Hill, KS (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F / ; C02F / ;
U.S. Cl.
CPC ...
210617 ; 210669 ; 210903 ;
Abstract
A method and apparatus for treating wastewater containing ammonia by passing the wastewater over a bed of ion exchange particles capable of exchanging ammonium and having a growth of nitrifying bacteria thereon. The wastewater is preferably first oxygenated and then passed through a biological filter, a solids filter, and an organic filter before reaching the ion exchange particles.