# US 10,765,999 B2 · Treatment of industrial water systems

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- Number: US 10,765,999 B2
- Document ID: US10765999B2
- Status: Granted
- Kind: B2
- Application number: 15/705,572
- Filed: 2017-09-15
- Published: 2018-01-04
- Granted: 2020-09-08
- Earliest claimed: 2012-03-06
- Assignees: Ecolab USA Inc.
- Applicants: Ecolab USA Inc.
- Inventors: Narasimha M. Rao; Steven R. Hatch; William A. Von Drasek
- Web page: https://patentgrep.com/patent/US10765999B2

## CPC

- B01D 61/00: Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor (separation of gases or vapours by diffusion B01D53/22)
- C02F 1/008: {Control or steering systems not provided for elsewhere in subclass C02F}
- C02F 1/686: {Devices for dosing liquid additives}
- C02F 1/687: {Devices for dosing solid compounds}
- B01D 2311/10: Temperature control
- B01D 2311/14: Pressure control
- B01D 2311/16: Flow or flux control
- B01D 2311/18: pH control
- B01D 2311/243: Electrical conductivity control
- C02F 1/44: by dialysis, osmosis or reverse osmosis {(general membrane separation processes B01D61/00, membrane modules B01D63/00, electrodialysis C02F1/4693, combination of membrane modules and bioreactors C02F3/1268)}
- C02F 2103/023: {Water in cooling circuits}
- C02F 2103/18: from the purification of gaseous effluents
- C02F 2103/28: from the paper or cellulose industry
- C02F 2103/365: {from petrochemical industry (e.g. refineries)}
- C02F 2103/42: from bathing facilities, e.g. swimming pools
- C02F 2209/006: comprising a software program or a logic diagram
- C02F 2209/01: Density
- C02F 2209/02: Temperature
- C02F 2209/04: Oxidation reduction potential [ORP]
- C02F 2209/06: pH
- C02F 2209/11: Turbidity
- C02F 2209/40: Liquid flow rate
- G05B 19/042: using digital processors (G05B19/05 takes precedence)
- B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28)
- C02F: TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE (separation in general B01D; special arrangements on waterborne vessels of installations for treating water, waste water or sewage, e.g. for producing fresh water, B63J; adding materials to water to prevent corrosion C23F; treating radioactively-contaminated liquids G21F9/04; regeneration of reactants for recirculation into processes, see the relevant places for the processes)
- G05B: CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS (systems for controlling or regulating non-electric variables G05D; systems for regulating electric or magnetic variables G05F; control devices or systems insofar as characterised by mechanical features only G05G)

## 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

### Claim 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.

### Claim 2 (depends on 1)

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.

### Claim 3 (depends on 1)

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.

### Claim 4 (depends on 3)

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.

### Claim 5 (depends on 4)

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.

### Claim 6 (depends on 1)

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

### Claim 7 (depends on 6)

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

### Claim 8 (depends on 7)

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

### Claim 9 (depends on 1)

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

### Claim 10 (depends on 1)

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

### Claim 11 (depends on 1)

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

### Claim 12 (depends on 11)

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

### Claim 13 (depends on 1)

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

### Claim 14 (depends on 1)

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

### Claim 15 (depends on 14)

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

### Claim 16 (depends on 5)

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

### Claim 17 (depends on 16)

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

### Claim 18 (depends on 17)

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

### Claim 19 (depends on 18)

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

### Claim 20 (depends on 19)

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