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:
May. 31, 2016
Filed:
Mar. 14, 2014
D.c. Water & Sewer Authority, Washington, DC (US);
Hampton Roads Sanitation District, Virginia Beach, VA (US);
Pusker Regmi, Virgina Beach, VA (US);
Mark Miller, Virginia Beach, VA (US);
Sudhir N. Murthy, Herndon, VA (US);
Charles B. Bott, Virginia Beach, VA (US);
D.C. Water & Sewer Authority, Washington, DC (US);
Hampton Roads Sanitation District, Virginia Beach, VA (US);
Abstract
A reactor and control method for maximizing nitrogen removal and minimizing aeration requirements through control of transient anoxia and aerobic SRT, repression of NOB, and control of dynamic DO concentrations or aeration interval by keeping the reactor NHand NOconcentrations approximately equal. Controls are provided for maximizing the potential for TIN removal through nitrification, limited nitritation, nitritation, denitrification, limited denitritation, denitritation making use of 1) real time measurement of ammonia, nitrite, nitrate, 2) operational DO and the proper use of DO setpoints, and 3) proper implementation of transient anoxia within a wide range of reactor configurations and operating conditions.