Deionization of water is a common process in case the use of water without salts is necessary. In most cases, alkalinity and the dissolved solids can damage the equipment, so it is necessary to reduce the dissolved solids in the process water.
Dissolved solids can be removed by means of ion exchange resins, producing pure water called “deionized” or “demineralized” water.
TEMAK can offer a complete programme of raw water demineralization by ion exchange resins called deionization. Each installation of deionization consists of two columns. The first column contains cation exchange resin, while the next, second, column contains anion exchange resin. When the deionization system is exhausted, the cation resin is regenerated with hydrochloric acid and then the anion resin is regenerated with caustic soda solution.
The plant operation of deionization could be fully automatic, or semi-automatic with manual start-up of the regeneration process.