IP Library Granted Patent US 10,765,999
Granted Patent B2
US 10,765,999 · App. 15/705,572 · Granted Sep 8, 2020

Treatment of industrial water systems

Inventors: Narasimha M. Rao (Naperville, IL); Steven R. Hatch (Naperville, IL); William A. Von Drasek (Oak Forest, IL)
Assignee: Ecolab USA Inc.
B01D61/00C02F1/008C02F1/686C02F1/687B01D2311/10B01D2311/14B01D2311/16B01D2311/18B01D2311/243C02F1/44C02F2103/023C02F2103/18C02F2103/28C02F2103/365C02F2103/42C02F2209/006C02F2209/01C02F2209/02C02F2209/04C02F2209/06C02F2209/11C02F2209/40
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Quick Facts
Patent No.
US 10,765,999
App. No.
15/705,572
Granted
Sep 8, 2020
Kind
B2
Abstract

A method for controlling treatment of an industrial water system is disclosed. The method comprises the steps of providing an apparatus for controlling delivery of at least one treatment chemical, the apparatus comprising at least one sensor and an electronic input/output device carrying out a protocol; measuring a parameter of the industrial water system using the at least one sensor; relaying the measured parameter to the electronic device; adjusting the protocol based on the measured parameter; delivering a concentrated treatment chemical into a stream of the industrial water system according to the adjusted protocol, the concentrated treatment chemical comprising an active ingredient, the active ingredient traced as necessary, the active ingredient having a concentration; repeating the measuring, the adjusting, and the delivering; and optionally repeating the steps for n-number of parameters, n-number of active ingredients, and/or n-number of concentrated treatment chemicals.

Claims (26)

1. A method of preparing an additive package having a base solvent and a plurality of concentrated active ingredients, the method comprising:

dosing a volume of a first concentrated active ingredient of the plurality of concentrated active ingredients into the base solvent to form a first blend, wherein the first concentrated active ingredient comprises a first concentrated fluorophore;

monitoring a fluorescence response of the first concentrated fluorophore in the first blend as compared to a first fluorometric set point sensitive to concentration changes, wherein the dosing of the first concentrated active ingredient continues until the fluorescence response of the first concentrated fluorophore reaches the first fluorometric set point sensitive to concentration changes;

upon the fluorescence response of the first concentrated fluorophore reaching the first fluorometric set point, dosing a volume of a second concentrated active ingredient of the plurality of concentrated active ingredients into the first blend to form a second blend, wherein the second concentrated active ingredient is different than the first concentrated active ingredient, wherein the first blend does not include the second concentrated active ingredient, and

monitoring the fluorescence response of the first concentrated fluorophore in the second blend to a second fluorometric set point sensitive to concentration changes wherein the second fluorometric set point is different than the first fluorometric set point, wherein the dosing of the second concentrated active ingredient continues until the fluorescence response of the first concentrated fluorophore reaches the second fluorometric set point sensitive to concentration changes.

2. The method of claim 1 , further comprising, upon the fluorescence response of the first concentrated fluorophore reaching the second fluorometric set point, dosing a second volume of the first concentrated active ingredient comprising the first concentrated fluorophore into the second blend to form a third blend; and

monitoring the fluorescence response of the first concentrated fluorophore in the third blend to a third fluorometric set point sensitive to concentration changes.

3. The method of claim 1 , further comprising, upon the fluorescence response of the first concentrated fluorophore reaching the second fluorometric set point, dosing a third concentrated active ingredient of the plurality of concentrated active ingredients into the second blend to form a third blend, wherein the third concentrated active ingredient is different than the first concentrated active ingredient and the second concentrated active ingredient and wherein the second blend does not include the third concentrated active ingredient, wherein the dosing of the third concentrated active ingredient continues until the fluorescence response of the first concentrated fluorophore reaches a third fluorometric set point sensitive to concentration changes, wherein the third fluorometric set point is different than the first fluorometric set point and the second fluorometric set point.

4. The method of claim 3 , further comprising monitoring the fluorescence response of the first concentrated fluorophore in the third blend to the third fluorometric set point sensitive to concentration changes.

5. The method of claim 4 , further comprising, upon the fluorescence response of the first concentrated fluorophore reaching the third fluorometric set point, dosing a second volume of the first concentrated active ingredient comprising the first concentrated fluorophore into the third blend to form a fourth blend; and

monitoring the fluorescence response of the first concentrated fluorophore in the fourth blend to a fourth fluorometric set point sensitive to concentration changes.

6. The method of claim 1 , wherein the first concentrated active ingredient and the first concentrated fluorophore are the same chemical.

7. The method of claim 6 , wherein the first concentrated active ingredient and the first concentrated fluorophore are a corrosion inhibitor.

8. The method of claim 7 , wherein the first concentrated active ingredient and the first concentrated fluorophore are poly acrylic acid tagged dispersant.

9. The method of claim 1 , wherein the base solvent comprises water.

10. The method of claim 1 , wherein the second concentrated active ingredient comprises a second corrosion inhibitor.

11. The method of claim 1 , wherein the first concentrated active ingredient comprises a corrosion inhibitor.

12. The method of claim 11 , wherein the first concentrated fluorophore comprises an inert tracer.

13. The method of claim 1 , wherein the second concentrated active ingredient comprises a scale inhibitor.

14. The method of claim 1 , wherein the first concentrated active ingredient comprises a scale inhibitor.

15. The method of claim 14 , wherein the first concentrated fluorophore comprises an inert tracer.

16. The method of claim 5 , wherein the first concentrated active ingredient and the first concentrated fluorophore are the same chemical.

17. The method of claim 16 , wherein the first concentrated active ingredient and the first concentrated fluorophore are a corrosion inhibitor.

18. The method of claim 17 , wherein the first concentrated active ingredient and the first concentrated fluorophore are poly acrylic acid tagged dispersant.

19. The method of claim 18 , wherein the second concentrated active ingredient comprises a second corrosion inhibitor.

20. The method of claim 19 , wherein the third concentrated active ingredient comprises a scale inhibitor.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 1, 2017
From: NALCO COMPANY LLC
To: ECOLAB USA INC.
Reel/Frame 044347/0104 →
CHANGE OF NAME Recorded Sep 20, 2017
From: NALCO COMPANY
To: NALCO COMPANY LLC
Reel/Frame 043924/0587 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 19, 2017
From: RAO, NARASIMHA M.; HATCH, STEVEN R.; VON DRASEK, WILLIAM A.
To: NALCO COMPANY
Reel/Frame 043621/0845 →
Continuity (2)
Continuation 13412800 · Mar 6, 2012
Related Publication 20180001262A1 · Jan 4, 2018