Christopher M Ford

US Patent:

20150377772, Dec 31, 2015

Filed:

Jun 26, 2015

Appl. No.:

14/752149

Inventors:

- Boulder CA, US
Bova Xiong - Erie CO, US
Christopher M. Ford - Denver CO, US
Peter C. Andersen - Boulder CO, US
Craig J. Williford - Boulder CO, US

International Classification:

G01N 21/33
C02F 1/78

Abstract:

The present invention provides a means of measuring the concentration of ozone dissolved in water or another solvent. Small, discrete samples are sparged with air or another unreactive gas for a short period of time to measure a profile of ozone vs time in the sparge gas. The total amount of ozone in the original sample is obtained by integrating under the ozone vs time profile. A correction may be made for ozone remaining in the sample after a finite sparge time by integrating under the profile tail using a decay constant obtained from the measured ozone vs time profile. The method differs from previous methods based on sparging of the sample in that a Henry's Law equilibrium or constant ratio of ozone present in the gas and liquid phases is not assumed and the flow rates of sample and sparge gas are not continuous. Instead, discrete samples are analyzed by nearly complete sparging. The new method is applicable to dirty (impure) water because the ozone is measured in the absence of UV-absorbing and scattering impurities that may be present in the sample. The method applies to high purity water as well.

Address:

679 S Reed Ct APT 3-105, Lakewood, CO 80226

VIN:

KNADE223996485588

Make:

KIA

Model:

RIO

Year:

2009