Ion ExchangeIon exchange is a chemical process applied in water treatment systems that need removal of ionic pollutants, using solid polymeric ion exchange resins. There are two major types of ion exchange resins — cationic resins, which remove positively-charged ions from water, and anionic resins, which remove negatively-charged ions. In some particular applications, chelating resins are used to remove specific pollutants like metal ions present in water from a semiconductor or metallurgical industry.
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Ion exchange is a chemical process applied in water treatment systems that need removal of ionic pollutants, using solid polymeric ion exchange resins. There are two major types of ion exchange resins — cationic resins, which remove positively-charged ions from water, and anionic resins, which remove negatively-charged ions. In some particular applications, chelating resins are used to remove specific pollutants like metal ions present in water from a semiconductor or metallurgical industry.
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In general, selection of the system to be installed depends on the operating pressure of the boiler. For low pressure boilers, ion exchange softeners are recommended, while for high pressure boilers, reverse osmosis is more recommended. Alternatively, electrodeionization may also... (More)
According to Purolite, a leading manufacturer of ion exchange, catalyst, adsorbent and specialty resins, it takes less than 2 hours to regenerate a water-softening resin bed.