As utility assets age, many plants must replace their demineralizers. Although some designers have been eager to use new technology such as reverse osmosis, it is not appropriate for every application..
As utility assets age, many plants must replace their demineralizers. Although some designers have been eager to use new technology such as reverse osmosis, it is not appropriate for every application. If demineralizers are required, then the packed-bed units offer excellent regenerant and water savings as compared to conventional units.
Packed-bed demineralizers are appropriately named, since the resin bed is not fluidized and the unit is rarely, if ever, backwashed. The key differences between conventional demineralizers and packed bed unit are:
Packed beds don't require routine backwashing to remove resin fines and influent particulates. However, these systems do re
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