Cation Exchange Resin for Water Treatment

  • Ionic form : Na+
  • Moisture content :46.00 – 52.00%
  • Total exchange capacity : ≥4.50 mmol/g
  • Volume Exchange Capacity: ≥1.80mmol/ml
  • Shipping weight :0.77 – 0.87 g/ml
  • True density : 1.25 – 1.29 g/ml
  • Particle size range: (0.315mm-1.25mm)≥95.0%
  • Lower limit size : (<0.315mm)≤1.0%
  • The effective size :0.400-0.700 mm
  • Uniformity coefficient : ≤1.60
  • Sphericity after attrition : ≥90.00%
  • Appearance: Golden to brown global granule

General Description of Cation Exchange Resin 

Cation exchange resin is a type of synthetic resin that can remove unwanted dissolved solids from water by exchanging them with sodium or hydrogen ions. It is used for water softening, deionization, and metal removal. There are different types of exchange resins, such as mixed-bed, separate-bed, and weak acid cation (WAC) resins, that have different properties and applications.

In a cation exchange treatment process, water passes through a bed of synthetic resin. Positively charged contaminants in the water are exchanged with more innocuous positively charged ions, typically sodium, on the resin’s surface. This process is useful for removing various contaminants including natural organic matter (NOM), heavy metal ions, anions, boron, surfactants, pharmaceuticals, and dyes.

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