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. 22, 2022
Filed:
Aug. 30, 2019
Systems and processes for early detection of biological ammonia oxidation in water using fluorometry
Board of Trustees of the University of Arkansas, Little Rock, AR (US);
Garver, Llc, North Little Rock, AR (US);
The United States of America, As Represented BY the Administrator of U.s. Environmental Protection Agency, Washington D.C., DC (US);
Julian Fairey, Fayetteville, AR (US);
Thien Duc Do, Fayetteville, AR (US);
Ashley Pifer, Fayetteville, AR (US);
David Wahman, Cincinnati, OH (US);
BOARD OF TRUSTEE OF THE UNIVERSITY OF ARKANSAS, Little Rock, AR (US);
THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE ADMINISTRATOR OF U.S. ENVIRONMENTAL PROTECTION, Washington, DC (US);
Abstract
This invention relates generally to a system and process for early detection of biological ammonia oxidation in water utilizing a fluorescence-based sensor and process. Various embodiments are configured to read increases in a fluorescence excitation-emission wavelength pair that is responsive to a period of time (days to weeks or even longer) prior to the onset of biological ammonia oxidation, which is considered to be a nitrification event. Fluorescence excitation/emission pairs that have proven to be reliable include a fluorescence excitation wavelength of about 230 nm and an emission wavelength of about 345 nm and an excitation wavelength of 325 and an emission wavelength of 470. The system and process enable drinking water utilities to improve management of its distribution systems and facilitate earlier corrective actions, resulting is less loss of treated water through flushing and other tangible benefits.