role of the weak acid cation resin in water treatment in singapore

role of the weak acid cation resin in water treatment in singapore
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  • What is weak acid cation resin?
  • Weak acid cation (WAC) resin plays an important role in water treatment. It is usually manufactured from acrylic acid and divinyl benzene (DVB) as a crosslinking agent, although some manufacturers make it from methacrylic acid or its derivatives. It is widely used unit in a demineralisation plants for dealkalisation of water.
  • What is a weak acid cation (WAC) resin?
  • Within oil & gas, one application is boiler feedwater treatment to remove hardness, i.e. calcium and magnesium. Weak acid cation (WAC) resins are typically used and advances in material science, polymer chemistry and manufacturing methods have resulted in new resins being introduced to the market.
  • Which cation resin removes ionic water contaminants?
  • Positively charged cation resins remove positively charged ionic water contaminants. Included in this category of resins are strong acid/strong cation (SAC) and weak acid/weak cation (WAC) resins. SAC resin is effective for water softening, which removes hardness ions.
  • How do strong acid cation resins work?
  • Na > HSodium leaks first!Strong Acid Cation Resins – How do they work?
  • In service operation it is the H+ ion connected to the SO3 - group which exchanges with all cations to re .SO3H + NaClÆSO3Na+ HClOn regeneration the acid replaces the H+ ions and removes the captured cation which passes t