Resin Water Treatment System

Resin water treatment system is designed to remove natural organic material in water treatment. This process involves ion exchange method using resins which is macro sized and porous in nature. These resins are made of synthetic organic materials consisting of exchangeable ions. After the exhaustion of resin capacity, resins can be regenerated for reuse.

Application of Resin Water Treatment
Resin is used in following fields for effective treatment of water:

• Water Demineralizers
• Water Softening Plant
• Condensate Polishing

For treating industrial water there are are four classes of resins:

Resin Type	Application	Features
Strong acid cation (SAC) resins	Mainly used for softening, demineralization and alkanization process.	Most commonly used resin, Comes in different percent of cross linkage.
Weak Acid Cation (WAC) Resins	Used in demineralization and dealkalization systems.	Removes all cations that are held by resin Cations associated with alkalinity are mainly removed by WAC resins. Can remove both monovalent ions (sodium associated with hydroxide alkalinity) and divalent ions that are associated with carbonate alkalinity.
Strong Base Anion (SBA) Resins	Mainly used in ion exchange demineralization processes, dealkalization, desilicization and organic trap applications.
Weak Base Anion ( WBA) Resins	They are important ion exchange resins that also acts as acid absorbers.	Anions of the strong mineral acids (sulfate, chloride and nitrate) can be easily removed by it. Not suitable for demineralization as they allow carbonate/bicarbonate and silica ions to pass through. Regenerates easily

Each resins, within the group, has several physical and chemical variations that gives them different properties. Hence it is necessary to design the system keeping in mind this aspect in order to provide maximum efficiency to the system.

The structure of contemporary resin is styrene-divinylbenzene copolymer bead structure which imparts certain physical properties to the resin. Acrylic resin structure is another widely used resin structure whose operating properties are different from the styrene-divinylbenzene resin. For different types of operation different types of resins are used.

Uniform particle sized resins are the latest development in the field of resins. Initially resin were manufactured in a Gaussian distribution pattern however now resin beads of uniform size are manufactured. This gives unique properties to the resins that are better suited to a given application.

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