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:
Feb. 14, 2017
Filed:
Jan. 09, 2015
Applicant:
John H. Reid, Fredericksburg, VA (US);
Inventor:
John H. Reid, Fredericksburg, VA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F 3/30 (2006.01);
U.S. Cl.
CPC ...
C02F 3/305 (2013.01);
Abstract
A flow equalization reactor for a multi-stage activated sludge process for treating industrial wastewater and/or municipal sewage is divided into two or more treatment zones. An outflow from a first treatment zone is mixed with an outflow from the second treatment zone in a mixer and conveyed to a third stage reactor containing anaerobic, autotrophic ammonia oxidizing anammox bacteria for converting nitrite nitrogen to nitrogen gas. The relative amounts of the outflows from the first and second treatment zones are controlled to promote and optimize the growth and accumulation of the anammox biomass in the third stage reactor.