Advance Scale Control Technology For Cooling Water Systems

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TrueSense Online Dynamic Laboratory StudyWith Polymer Control (continued)Neutral pH ProgramStandard Water ConditionspH: 7.2Calcium: 600 ppm as CaCO 3Orthophosphate: 15 ppmPyrophosphate: 3 ppmSkin Temperature: 135°F (57°C)Retention Time: 3 days36 /GE /
Case HistoryEuropean plastics producer saves US$135,000 year with STPTechnologyGoal• Reduce phosphate discharge – new regulations made itdesirable to reduce the phosphate discharge from thecooling water program• Reduce acid consumption – with acid pricesskyrocketing, any acid feed reduction meant significantsavings• Reduce water consumptionSolution• Upgrade toSTP and revise the chemistry targetsOriginalTargetsGenGardTargetsOrthophosphate 17-18 ppm 12-14 ppmpH 7.3-7.4 7.7-7.8Active polymer 30 ppm 22.5 ppmCycles ~4.0 ~5.0Results• Discharge compliant• 25% acid reduction• Water reduction• Excellent corrosionprotection of
Page 1 and 2: Advance Scale ControlTechnology For
Page 3 and 4: Cooling Systems ProblemsScaleMicrob
Page 5 and 6: Scale formationDissolved AtomsNucle
Page 7 and 8: Factors Affecting Scale formation
Page 9 and 10: pH9 /GE /
Page 11 and 12: Water Velocity11 /GE /
Page 13 and 14: Scale Inhibition & Control• Chang
Page 15 and 16: Polymeric Scale Dispersant• PAA (
Page 17 and 18: Stress Tolerant Polymer (STP) -Over
Page 19 and 20: % PO4 InhibitionCalcium Phosphate I
Page 21 and 22: % Zn Inhibition% PO4 InhibitionZinc
Page 23 and 24: NTUDynamic Iron Oxide Dispersion Te
Page 25 and 26: Bench Top Recirculating Unit - BTU2
Page 27 and 28: Polymer Dosage as Function of pHTre
Page 29 and 30: ppmppm1816141210Effect of pH Excurs
Page 31 and 32: 200 ppm Clay TestAlkaline pH Progra
Page 33 and 34: High TemperatureTreatment Program:
Page 35: TrueSense Online Dynamic Laboratory

Advance Scale Control Technology For Cooling Water Systems

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