US 12,275,653 B2
System for monitoring hydroxyl radical scavenging index in water using real-time multi-fluorescence analyzer and parallel factor analysis apparatus, and method therefor
Tae Mun Hwang, Gyeonggi-do (KR); Sook Hyun Nam, Gyeonggi-do (KR); Eun-Ju Kim, Gyeonggi-do (KR); and Jae-Wuk Koo, Gyeonggi-do (KR)
Assigned to KOREA INSTITUTE OF CIVIL ENGINEERING AND BUILDING TECHNOLOGY, Gyeonggi-Do (KR)
Appl. No. 17/781,047
Filed by KOREA INSTITUTE OF CIVIL ENGINEERING AND BUILDING TECHNOLOGY, Gyeonggi-do (KR)
PCT Filed Nov. 19, 2020, PCT No. PCT/KR2020/016360
§ 371(c)(1), (2) Date May 31, 2022,
PCT Pub. No. WO2021/118099, PCT Pub. Date Jun. 17, 2021.
Claims priority of application No. 10-2019-0162387 (KR), filed on Dec. 9, 2019.
Prior Publication US 2022/0411287 A1, Dec. 29, 2022
Int. Cl. C02F 1/00 (2023.01); C02F 1/32 (2023.01); C02F 1/72 (2023.01); C02F 1/78 (2023.01); G01N 21/64 (2006.01); G01N 21/85 (2006.01); G01N 21/84 (2006.01)
CPC C02F 1/008 (2013.01) [C02F 1/32 (2013.01); C02F 1/722 (2013.01); C02F 1/78 (2013.01); G01N 21/643 (2013.01); G01N 21/85 (2013.01); G01N 2021/8411 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A system for monitoring a hydroxyl radical scavenging index in water using a real-time multi-fluorescence analyzer and parallel factor analysis apparatus, the system comprising:
a target water supply unit that supplies target water which is water to be treated by an advanced oxidation process (AOP);
a real-time multi-fluorescence analyzer that consists of multiple channels and generates excitation-emission matrix (EEM) data by measuring the fluorescence of a natural organic material (NOM) in the target water;
a parallel factor analysis apparatus that classifies the EEM data by a plurality of components by parallel factor (PARAFAC) modeling for the multi-fluorescence analysis of the EEM data;
an organic material characteristic index derivation unit that derives an organic material characteristic index that is a fluorescence index for each of the plurality of components;
a hydroxyl radical scavenging index calculation unit that calculates a hydroxyl radical scavenging index in the target water corresponding to the organic material characteristic index for each of the plurality of components; and
a process control variable monitoring unit that monitors process control variables using a reaction rate model, wherein the process control variables comprise an amount of chemical injection or an amount of ultraviolet irradiation, which is applied to the advanced oxidation process (AOP), and
wherein the characteristic index of the organic material in the target water is monitored through a continuous flow analysis method.