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GenGard* The most revolutionary cooling chemistry in over a decade

With rising energy costs and strains on capacity, facilities strive to optimize efficiency while keeping costs in check. Often, the challenge is how to balance the two, delivering maximum throughput and asset protection, yet not breaking the bank. SUEZ’s GenGard* cooling water program, featuring our patented Stress Tolerant Polymer, is a timely solution.

unsurpassed performance GenGard offers truly superior protection when compared to any other chemistry available today. This revolutionary product, effective in both neutral and alkaline pH scenarios, features the patented Stress Tolerant Polymer (STP). STP is a very forgiving chemistry with excellent inhibition of calcium phosphate, calcium pyrophosphate, zinc phosphate, and aluminum phosphate. It also is outstanding at dispersion of high iron and silt levels and handling high exchanger skin temperatures and high pH excursions. Figures 1 to 6 demonstrate the truly remarkable performance of STP. In addition, GenGard is halogen stable, allowing it to be used in conjunction with the most cost effective biocide programs.

cost effective Despite offering such excellent protection, GenGard remains cost competitive when compared to other lesser products on the market.

GenGard can lower costs in other ways, as well. Because the chemistry is so forgiving, its use ensures clean heat exchangers, lowering energy consumption, and maximizing production and throughput. Unscheduled shutdowns and cleanings are minimized, too, reducing your labor costs.

a product of SUEZ GenGard is “green”. With greater forgiveness, a facilities’ water consumption may be lowered, reducing its water footprint. Also, GenGard doesn’t contain a molybdate tracer, reducing heavy metals being returned to the environment.

simplicity GenGard is measurable with offline and online methods. The offline method is a simple colorimetric test. The online method is SUEZ’s new TrueSense* unit, which is the first online polymer-monitoring sensor to measure polymer directly.

time tested and proven SUEZ is a leading global supplier of water treatment, wastewater treatment and process systems solutions. SUEZ delivers customer value by improving performance and product quality and by reducing operating costs and extending equipment life in a broad range of products and services. These products and services are used to optimize total water/process system performance, safeguard customer assets

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from corrosion, fouling and scaling, and protect the environment through water and energy conservation.

For more information about our GenGard technology and opportunities for your operation, contact your SUEZ water treatment professional or visit www.suezwatertechnologies.com.

Figure 1: Comparison of STP vs. the Industry Standard Polymer

in pH Upset

99.4%

STP IndustryStd. Polymer

0.90%

Water Conditions300 ppm Ca as CaCO310 ppm PO45 ppm ZnpH 8.5120°F (50°C )5 ppm active polymer

Zn Inhibition

Figure 2: Comparison of STP vs. the Industry Standard Polymer

for Zinc inhibition

96%

STP IndustryStd. Polymer

1.04%

Water Conditions400 ppm Ca as CaCO3100 ppm Mg10 ppm PO4pH 8.2160°F (70°C )10 ppm active polymer

CaPO4 Inhibition

Figure 3: Comparison of STP vs. the Industry Standard Polymer

for Calcium Phosphate Inhibition

High silt excursion Alkaline pH Program

Water Conditions: 400 ppm Ca as CaPO4,

pH 8.6, 4 ppm o-PO4, 3 ppm Penta

Figure 4: Comparison of STP vs. Industry Standard Polymer in

high silt excursion

STP Polymer

Industry Std. Polymer

Figure 5: Comparison of STP vs. Industry Standard Polymer in

high iron excursion

High iron excursion Neutral pH Program w/stabilized phosphate Water Conditions: 3 ppm iron, 600 ppm Ca as CaPO4, pH 7.2, 15 ppm o-PO4, 3 ppm pyro-PO4

STP Polymer

Industry Std. Polymer

Figure 6: Comparison of STP vs. Industry Standard Polymer in

high aluminum excursion

High aluminum excursion Neutral pH Program w/stabilized phosphate Water Conditions: 2 ppm aluminum, 600 ppm Ca as CaPO4, pH 7.2, 15 ppm o-PO4, 3 ppm pyro-PO4

Figure 7: Comparison of STP vs. Industry Standard Polymer in

high temperature excursion

pH Upset (7.9)

STP Polymer

Industry Standard Polymer

Uniform CaPO4 deposit

Industry Std. Polymer

STP Polymer

Industry Std. Polymer

STP Polymer

STP Polymer STP Polymer