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. 25, 2008
Filed:
Jan. 25, 2006
Applicants:
Robert A. Elefritz, Ormond Beach, FL (US);
Wenjun Liu, King of Prussia, PA (US);
Inventors:
Robert A. Elefritz, Ormond Beach, FL (US);
Wenjun Liu, King of Prussia, PA (US);
Assignee:
Siemens Water Technologies Corp., Lowell, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F 3/30 (2006.01); B01D 21/30 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention is directed to a wastewater treatment system having an anoxic biological treatment zone, an aerobic biological treatment zone and a separator. The concentration of oxygen in streams within the system is strategically managed for improved removal of nutrient from the wastewater. A source of biodegradable carbon may be introduced to reduce the concentration of oxygen within the system. An effective treatment time under anoxic or aerobic conditions may further be varied.