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Ion Exchange Breakthrough

Statement of the Problem

Ion exchange processes are frequently used to remove unwanted ions from water. Typical ions removed include calcium and magnesium (hardness), dissolved iron and manganese, nitrate, or certain organics. The ion exchange media is typically a polymer which contains numerous locations for attachment of a benign ion which is exchanged for the unwanted ion in the water upon contact with the polymer. Eventually the exchangeable ions become depleted and the polymer must be regenerated with a fresh supply.

Control Strategy

Regeneration can be initiated based on time of day, time intervals or total flow through the exchange tank. In some applications, especially when there is a variable concentration of ions to be removed, time or flow based intervals may not be satisfactory. Under these conditions, either regeneration may not occur until after the tank has been exhausted or energy and resources may be wasted by regenerating too soon or too often.

An alternative is to base regeneration on a drop in ion removal efficiency, as measured by the detection of some minimum concentration of the removed ion in the exchange tank effluent.

Apparatus

ChemScan process analyzers can be used to detect ion exchange breakthrough in one or more exchange tank effluents. This information can be used to initiate backwash, initiate alarms and/or divert flow to alternate exchange tanks.
  
Applied Spectrometry Associates, Inc.
2325 Parklawn Dr., Suite I, Waukesha, WI 53186
​Phone: 262-717-9500
Toll Free: 800-665-7133

Contact Us

  • Home
  • Applications
    • Municipal Water Monitoring >
      • Ammonia Feed
      • Chloramination Control
      • Chlorination
      • Color Analysis
      • Distribution Monitoring
      • Hardness Monitoring
      • Ion Exchange Breakthrough
      • Natural Organic Matter (NOM) Removal
      • Peak Point Chloramination Control
      • Phosphate Sequesterant Feed Control
      • Reservoir Monitoring
      • Security Monitoring
      • TOC Monitoring
      • Well Blending
    • Wastewater Monitoring and Control >
      • Aeration Control and Energy Cost Reduction
      • Biological Nutrient Removal
      • Biological Phosphorus Removal
      • Chemical Phosphorus Removal
      • Chloramination /Breakpoint Avoidance
      • Chlorination/De-Chlorination
      • De-Nitrification Monitoring
      • Nitrification
      • Nutrient Deficiency Analysis
      • Lagoon Discharge
      • SBR Stage Control
      • TOC Monitoring
      • UV Disinfection Control
    • Industrial Water Treatment >
      • Boiler Water Analysis
      • Cooling Water Analysis (Closed Loop)
    • Industrial Process Monitoring >
      • Electroless Plating
    • ASA Technical Papers (ALL)
    • ChemScan Installation Photos
  • Service / Parts
    • Contact Service
    • ChemScan Service Team
    • MSDS
    • Software Utilities
    • Service Videos
    • ChemScan Parts
  • Company
    • Terms and Conditions
    • Contact Form (General Inquiry)
    • Contact Service
    • Application Data Sheet
    • Employment Opportunities
    • Representatives and Distributors
  • Products
    • ChemScan Mini Analyzer >
      • mini oP (Ortho Phosphate)
      • mini oP (Ortho Phosphate) Extended Range
      • mini LoP (Low Ortho Phosphate)
      • mini UV-254
      • mini LowAm (Low Ammonia)
      • mini Mn (Manganese)
      • mini LowChlor (Low Chlorine)
      • mini Sulfite
      • mini Mono (Monochloramine)
      • mini FreeAm (Free Ammonia)
      • mini Cu (Copper)
      • mini CrVI
      • mini Low CrVI
      • mini Fe (Iron)
      • mini Ni (Nickel)
    • ChemScan Process Analyzers >
      • ChemScan 2150/S Chloramination Analyzer
      • ChemScan 2150/DC Chem Feed Analyzer
      • ChemScan 2150/N Aeration Rate Analyzer
      • ChemScan 2150/NoP Chem Feed Analyzer
      • ChemScan 2150/NHoP Nutrient Analyzer
      • ChemScan 2150 Process Analyzer
      • ChemScan UV-3150 Process Analyzer
      • ChemScan 4100 Nutrient Control
      • ChemScan 6101 Nutrient Control
    • ChemScan Alkalinity Analyzer >
      • For Wastewater
      • For Water
    • ChemScan Accessories
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