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. 12, 2008
Filed:
Apr. 11, 2005
David Douglas Hill, Mississauga, CA;
Alan George Seech, Mississauga, CA;
Kerry W. Bolanos-shaw, Brampton, CA;
Evica Dmitrovic, Mississauga, CA;
David Douglas Hill, Mississauga, CA;
Alan George Seech, Mississauga, CA;
Kerry W. Bolanos-Shaw, Brampton, CA;
Evica Dmitrovic, Mississauga, CA;
Adventus Intellectual Property Inc., Mississauga, Ontario, CA;
Abstract
In accordance with the principles of the present invention, methods and apparatuses are provided for practically complete removal of one or more electron acceptors (excluding oxygen) from waters of various origins, while ensuring that an added excess of external carbon is also practically completely removed using biological treatment. A method applies to waters that contain the target electron acceptor and a deficiency of carbon. One application of this method is the practically complete removal of nitrate from domestic wastewater (septic wastewater) while practically completely removing the added excess of external carbon, thus practically eliminating any increase of the biological oxygen demand of the water. Another method applies to waters that contain constituents that are potentially convertible to the target electron acceptor and may contain original carbon. One example of this method is aerobic pre-treatment of a water to yield nitrate and a deficiency of carbon, resulting in a water amenable to treatment via the previous method.