Demineralization Plants

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A condensate polisher is a device used to filter water condensed from steam as part of the steam cycle, for example in a conventional or nuclear power plant (powdered resin or deep bed system). It is frequently filled with polymer resins which are used to remove or exchange ions such that the purity of the condensate is maintained at or near that of distilled water.

Electrodeionization (EDI) products have gained global usage in the creation of ultrapure water systems across a spectrum of applications, including power generation, pharmaceuticals, semiconductors, petrochemicals, and laboratory pure water systems. AES offers tailor-made EDI systems with varying capacities to meet diverse needs.

In the EDI process, an electric field is utilized to effectively remove ions and polar species from an aqueous stream. EDI is commonly paired with reverse osmosis, serving as a substitute for ion exchange resin-mixed beds that necessitate chemical regeneration either onsite or offsite.

The adoption of EDI brings about notable economic and environmental advantages by eliminating the need for resin regenerating chemicals. Furthermore, EDI's continuous process contributes to enhanced water quality, mitigating spikes and upsets in water quality. This makes EDI a valuable and sustainable solution in the production of high-purity water for critical industries and applications.

Ion Exchange Softening is a water treatment process designed to remove Calcium and Magnesium ions through cation exchange. This method is commonly employed to diminish the scaling tendency of water used in boiler feeds or to enhance the lathering effect of detergents, particularly in laundry applications.

In this process, the Calcium and Magnesium ions in the water are exchanged for Sodium ions present on a cationic resin. The resin, consisting of R(SO3-), has a charged form with a Sodium Ion (Na+) attached to it. As water passes through this resin, the Calcium and Magnesium ions displace the Sodium ions, adhering to the resin. Simultaneously, the displaced Sodium ions are released into the water, joining other ions to replace the Calcium and Magnesium, forming new compounds. This exchange results in water with reduced levels of Calcium and Magnesium ions, effectively achieving the desired softening effect.