Puriwat® apparatus : A system of ion-exchange celluloses for the production of high-purity water

✍ Scribed by Zs. Horváth

• Publisher: Elsevier Science
• Year: 1974
• Tongue: English
• Weight: 274 KB
• Volume: 102
• Category: Article
• ISSN: 1873-3778
• DOI: 10.1016/s0021-9673(01)85472-8

✦ Synopsis

PURIWAT

apparatus produces high-purity water for special purposes from distilled or deionized water. Contaminants at the parts per million level can be removed by passing the water through a column of sandwiched ion-exchange cellulose as filtering media. The volume of water to be purified can be programmed and the apparatus operates without supervision. The filtering media is disposable, and fillings for the purification of 50 or 100 1 of water are available. The output of high-purity water is up to 6 l/h. When analysed by neutron activation analysis, the purified water is especially low in copper (0.0025 ppb**), while the contents of other heavy metals are less than 0.01 ppb.