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Ion Exchange


Using the latest in gel and macroreticular resin technology, Esli ion exchange systems set new standards in performance, water consistency, resin efficiency and system robustness. As process water passes through a bed of ion exchange resin, these resins attract and absorb ionic contaminants: Cation resins absorb positively charged ions and Anion resins absorb negatively charged ions. This absorption can occur in separate Cation and Anion Exchange stages, or with mixed resins in a single stage.

When do you need it?

Co-Current Regeneration Systems are self-contained pressure vessels containing Cation or Anion resins. They are primarily used for applications that require low to medium water quality, such as boiler water. They can be operated as working ion exchangers or as polishers downstream of counter current systems.

Split-flow Counter Current Regeneration Systems produce water of higher quality using a regeneration process where regenerant chemical flows in opposing directions through the resin bed. This both cleans and reconditions the resin bed, returning it to a highly regenerated state. Depending on your application, the unit may be loaded with a single bed of softener, strong acid Cation or strong base Anion resins.

Counter Current Layered Bed Systems are single vessels with a mix of weak and strong Cation resins or weak and strong Anion resins. Layered bed systems provide higher chemical efficiency without extra vessels.

Amberpack™ Packed Bed Systems are suited for applications that demand higher water purity, higher flow rates, reduced chemicals, reduced waste and a more compact design. The types of resins used and the configuration of the vessel are site specific and based on water chemistry.

Sandwich Amberpack™ Packed Bed Systems combine two chambers into a single vessel that contains either separate Cation and Anion resins or weak and strong resins. This is especially useful when floor space is limited.

Mixed Bed Systems deliver superior quality water in high-pressure feed water applications. Cation and Anion resins are intimately mixed in the bed, effectively removing all types of ion contamination. Mixed beds are often the final demineralization stage in the water treatment process, and can also be used for high-purity condensate polishing applications.

Cation Polishers are used to remove most of the remaining Sodium ions, typically polishing process water from two-bed demineralizers. When used in conjunction