Patent ID: 9670072
Date: 2017-06-06
CPC Classifications: C02F,G01J,G01N

Claim:
1. A computer-implemented method for controlling a water treatment process, comprising: measuring a first fluorescence emission spectrum of a pre-process water sample over a predetermined wavelength range produced in response to an excitation wavelength; integrating the first fluorescence emission spectrum over the predetermined wavelength range to generate a first integral; normalizing the first integral of the first fluorescence emission spectrum to a predetermined peak value; measuring a second fluorescence emission spectrum of a post-process water sample over the predetermined wavelength range produced in response to the excitation wavelength; integrating the second fluorescence emission spectrum over the predetermined wavelength range to generate a second integral; normalizing the second integral of the second fluorescence emission spectrum to the predetermined peak value; comparing the first and second peak normalized integrals of the fluorescence emission spectra to determine a change in dissolved organic carbon (DOC); and controlling the water treatment process based on the change in DOC.