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:
Jul. 29, 2008
Filed:
Oct. 25, 2006
Walter F. Bailey, Jr., Washington, DC (US);
Sudhir N. Murthy, Washington, DC (US);
Leonard Benson, Washington, DC (US);
Timothy Constantine, Toronto, CA;
Glen T. Daigger, Englewood, CO (US);
Thomas E. Sadick, Newport News, VA (US);
Dimitrios Katehis, Chalfont, PA (US);
Walter F. Bailey, Jr., Washington, DC (US);
Sudhir N. Murthy, Washington, DC (US);
Leonard Benson, Washington, DC (US);
Timothy Constantine, Toronto, CA;
Glen T. Daigger, Englewood, CO (US);
Thomas E. Sadick, Newport News, VA (US);
Dimitrios Katehis, Chalfont, PA (US);
D.C. Water & Sewer Authority, Washington, DC (US);
Abstract
An efficient system and process for removing nitrogen from wastewater while enriching seed sludge in the mainstream treatment process. Bioaugmentation of seed autotrophic organisms facilitate the nitrification reactions by enhancing the rates of reaction advantageously within a smaller volume or within a shorter activated sludge solids retention time. Likewise, bioaugmentation of seed denitrification organisms will also enhance rate of reaction within a smaller volume or shorter activated sludge solids retention time. Separate treatment of high ammonia digester reject water is an efficient method to treat nitrogen in recycle streams as well as to enrich the seed nitrifying and denitrifying cultures.