A specialized water treatment system called a demineralization (DM) plant is made to remove ions, salts, and dissolved minerals from water to provide high-purity water that has been demineralized. A number of treatment phases are usually involved, such as anion and cation exchange as well as occasionally mixed-bed ion exchange resin columns. Through the selective removal of ions and their replacement with hydrogen or hydroxide ions, these resins purify water to produce very low conductivity and very little mineral content. DM plants are essential in sectors that need ultrapure water for operations like electronics manufacturing, boiler feed water, and pharmaceutical manufacture.