It is recommended to soak ion exchange resins in demineralised water overnight before placing the ion exchange resins in service. This is especially important for anion exchange resins to make sure they are fully hydrated and for inert resin to reduce their hydrophobicity. This operation is used to minimize the floating and potential loss of…
A generic or universal statement cannot be made. It’s related to the factors of regenerant chemicals consumption, the water quality and the cost of waste stream disposal/limitation. Some ion exchange plant managers would consider a capacity loss of 10-20% sufficiently high to justify the total resin replacement but all plants are different in terms of…
Anion exchange resins, in general but especially strong base anion exchange resins in the hydroxide form, may release odors such as a dead fish smell. The main reason is the release of very low levels of alkyl-amines from the resin (i.e.: trimethylamine from Type I strong base resins). Trimethylamine is also released by decomposing fish,…