{"id":4642,"date":"2025-09-22T10:09:15","date_gmt":"2025-09-22T08:09:15","guid":{"rendered":"https:\/\/decker-vt.de\/regenerate-ion-exchangers\/"},"modified":"2026-01-20T09:21:04","modified_gmt":"2026-01-20T08:21:04","slug":"ion-exchanger-regeneration","status":"publish","type":"page","link":"https:\/\/decker-vt.de\/en\/services\/ion-exchanger-regeneration\/","title":{"rendered":"Regenerate ion exchangers"},"content":{"rendered":"\n
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Regenerate ion exchangers<\/h1>\n<\/div>\n\n\n\n
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Ion exchanger regeneration<\/h2>\n\n\n\n

Ion exchanger regeneration as a service includes the external regeneration of ion exchangers or ion exchanger cartridges \/ a demineralization cartridge a.o. from applications such as UPW or demineralized water production, semiconductors, circulation of rinsing water, groundwater remediation and selective removal of heavy metals e.g. copper, nickel, chromium (selective exchanger resin) in an industrial plant.<\/strong><\/p>\n\n\n\n

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\"Regeneration-Anschlauchen\"<\/figure>\n\n
\"Nachbehandlung-von-Ionenaustauscherregeneraten\"<\/figure><\/div>\n\n\n\n
\"Regeneration-Mischbettanlage-quad\"<\/figure>\n\n
\"Regeneration-von-extern-zu-regenerierenden-Ionenaustauscherpatronen\"<\/figure><\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n

Regenerate and condition ion exchangers (or ion exchanger resin or ion exchanger cartridges)<\/h2>\n\n\n\n

Ion exchangers<\/a> in ion exchanger cartridges<\/a> (e.g. externally regenerated selective exchangers<\/a> or a demineralization cartridge <\/a>or demineralization cartridge<\/a>) are similar to filters in their effect. The ion exchangers are charged by substances dissolved in the water as long as there is still sufficient capacity. An exchange takes place against the ions present on the ion exchanger (from the delivery form, regeneration or activation) in accordance with the selectivity series. Ions (already bound) that have a lower selectivity compared to the ion exchanger resin and are therefore bound more weakly are displaced by ions with a higher affinity from the head groups of the ion exchanger resin and enter the outlet of the ion exchanger. This exchange process takes place continuously until loading is stopped and the resins are returned to their original state by means of regeneration, i.e. they are regenerated with chemicals in excess. During the regeneration of ion exchangers, the ions previously bound in the process are released from the ion exchanger and the exchanger is returned to its original operational state.<\/p>\n\n\n\n

This regeneration process differs depending on the ion exchanger used and the application in which the ion exchanger resin is used (e.g. demineralization cartridge \/ VE-cartridge<\/a> or selective exchanger<\/a> or circulation ion exchanger<\/a>). Cation exchangers, i.e. sulphonic acid exchangers (SAC) and carboxylic acid exchangers (WAC), are usually regenerated with an acid. Weakly and strongly basic anion exchangers, i.e. teritary amine exchangers (WBA) and quaternary amine exchangers (SBA), are usually regenerated with an alkaline solution. Selective exchangers, so-called IDE exchangers (iminodiacetic acid exchangers), are regenerated with acid like cation exchangers. Special exchangers such as thiourea exchangers or bispicolyanimine exchangers require special treatment.<\/p>\n\n\n\n

As part of the regeneration of ion exchangers, the bound substances are eluted from the ion exchanger, e.g. the hardness formers Ca\/Mg or the heavy metals Ni, Cr(III)\/(VI), Cu, Zn, Pb. The various ion exchangers are then converted into the desired form, known as activation. Cation exchangers are usually converted into the H+, Na+, Ca+, K+ form or protonated ammonium form (NH4), anion exchangers usually into the OH-, Cl- or NH3- form. The process takes place entirely in a WHG safety zone, the eluted substances are treated in the company\u2019s own wastewater treatment plant CP according to the state of the art. <\/p>\n\n\n\n

The regeneration of ion exchangers is a service that requires extensive individual steps, depending on the requirements of the resin, the loading and the pre-cleaning process. To ensure success, a considerable amount of equipment is required to supply the necessary media, such as various acids, alkalis, activation chemicals, compressed air, vacuum, sterilized DI-water < 0.1 \u00b5S\/cm and city water. <\/p>\n\n\n\n

Some new resin types require either a special form for their use that differs from the delivery form, such as standard selective exchangers, which regularly have higher capacities and lower slip in the mono-sodium form. Other exchangers, such as strongly basic type I anion exchangers, require pre-cleaning<\/a> to remove production-related impurities before they can be used. <\/p>\n\n\n\n

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