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:
Apr. 19, 2005
Filed:
Oct. 31, 2002
Applicants:
Thomas E. Coleman, Yakima, WA (US);
James E. Bruya, Seattle, WA (US);
Inventors:
Thomas E. Coleman, Yakima, WA (US);
James E. Bruya, Seattle, WA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J003/44 ;
U.S. Cl.
CPC ...
Abstract
A method is provided for the determination of NOand/or NOin water by subjecting the water sample to ultraviolet resonance Raman spectroscopy within the range of wavelengths of 200-240 nm, and determining the presence of NOand/or NObased on the Raman spectral measurement. The method has particularly applicability to the determination of such ions in wastewater, such as in activated sludge washwater treatment reactors. The method may also be employed with advantage in the control of processes involving the removal of ammonium ions upon reaction with oxygen.