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Water Treatment Dosage Control and Relationship to Performance

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New methods for monitoring scale and corrosion inhibiting water treatment programs have been developed. These new patented methods utilize the measurement of system consumption of actives in the treatment program by fluorescence analysis.'-' The applied dosage of treatment program and the amount of actives available to the system are measured with inert fluorescent tracers added to the treatments.

System consumption of actives is defined as the difference between the amount of actives added and remaining in the system. 2,5- 7 Consumption measurements determine changes in the whole operating system (not a simulated, small portion of the system). Consumption measurements can also be made on individual portions of the system (heat exchangers). Changes in consumption of inhibitors and dispersants can .be related to changes in system operating conditions and performance. Reducing consumption of actives or maintaining consumption within a specified range can be related to optimization of the operation of the cooling system and treatment program.

Product Number: 51395-95260-SG

Author: J.E. Hoots

Publication Date: 1995

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The Development of Novel Laboratory Test Method on Evaluation of Scale Inhibition and Dispersancy for Cooling Water Applications

Product Number: 51320-14491-SG

Author: Haiping Lu, Tim Underwood, Zhenning Gu, Bingbing Gu

Publication Date: 2020

$20.00

Scale control is vital for cooling water operations, and evaluation of best-fit scale inhibitors for the application is essential, for the scale treatment. One of the traditional test methods for industrial water scale inhibitor screening is static bottle testing. Recently, in other industries, Kinetic Turbidity Test (KTT) has gained more acceptance for scale inhibitor evaluation. KTT uses an Ultraviolet-Visible (UV-Vis) spectrophotometer to monitor scale formation at various dosages of tested products, as function of reaction time. The technology can provide minimum dosage recommendations for the treatment with selected inhibitors, and give the insight on scale formation kinetics and mechanism, under the effects of different types of scale inhibitors.

Polymer dispersancy in waters with particulates such as iron oxide and clay, is also an important characteristic to evaluate, in systems with high levels of suspended solids or fine particles. Previously(currently), this testing was conducted in bottles where the turbidity of solutions were measured by pipette transfer to a cuvette and turbidity meter, providing one data point at a certain time. Kinetic turbidity testing can continuously and simultaneously monitor and record turbidity changes with time, under the effects of various polymer dispersants and dosages. This capability provides more thorough and objective data, for scale control product evaluation.
This paper presents the approach to evaluate scale control chemistries for industrial applications by KTT, and compares the KTT test data, with bottle test results. The laboratory testing results show that KTT provides a fast and data-driven approach for evaluating performance of scale inhibitors and dispersants.

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10046 Cooling Treatment Performance Optimization Under Alkaline Stressed Conditions

Product Number: 51300-10046-SG

ISBN: 10046 2010 CP

Author: Claudia C. Pierce, Caroline Sui and Gary E. Geiger

Publication Date: 2010

$20.00

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96579 RECLAIMED WATER FOR COOLING TOWER MAKE-UP: CONCERNS, MONITORING AND PROVEN TREATMENT

Product Number: 51300-96579-SG

ISBN: 96579 1996 CP

Author: David B. Ritz, Chris Spurell

$20.00

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Water Treatment Dosage Control and Relationship to Performance

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Water Treatment Dosage Control and Relationship to Performance

The Development of Novel Laboratory Test Method on Evaluation of Scale Inhibition and Dispersancy for Cooling Water Applications

10046 Cooling Treatment Performance Optimization Under Alkaline Stressed Conditions

96579 RECLAIMED WATER FOR COOLING TOWER MAKE-UP: CONCERNS, MONITORING AND PROVEN TREATMENT

Association for Materials Protection and Performance