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:
Sep. 22, 1998
Filed:
Jun. 25, 1997
Peter Kos, Ridgefield, CT (US);
Other;
Abstract
The present invention entails a method and system for enhancing biological nitrification in a wastewater treatment process. The process entails both a mainstream wastewater process and a sidestream process wherein the sidestream process produces an abundant supply of supplemental nitrifiers that are in turn directed into the mainstream for assisting in carrying out the nitrification process in the mainstream. Specifically, the sidestream process includes directing a liquid stream (such as a dewatering liquid) having a high ammonia concentration at an elevated temperature into a sidestream nitrification zone which is operated at conditions which maximize production of nitrifiers therein. Afterwards, the resulting nitrifiers produced in the sidestream nitrification zone are directed into the mainstream where the nitrifiers function to enhance nitrification in the mainstream and allows operation at low sludge retention time conditions where nitrification otherwise could not be sustained.