Ultrapure Water System

Ultrapure water is high-purity water produced by reverse osmosis technology, EDI electric desalting technology and other appropriate supercritical fine technology, which is used to develop ultrapure materials (semiconductor component materials, nano ceramic materials, etc.). The resistivity of water is greater than 18M Ω• cm, or close to the limit value of 18.25M Ω• cm (25 ℃).

The ultra pure water purification system adopts pretreatment, reverse osmosis device, EDI electric desalting, resin purification and post-treatment methods to almost completely remove the conductive medium in the water, and to a very low extent remove the nonfree colloidal substances, gases and organic substances in the water.

The quality of ultra pure water conforms to the first level water standard of China National Laboratory Water Specification GB6682-2008, China National Electronic Ultra pure Water Standard GBT11446.1-1997 and the reagent level pure water standards of ASTM, NCCLS and CAP in the United States.

HOW TO USE ULTRAPURE WATER SYSTEMS TO GET ULTRA-PURE WATER?

The upw system can generally divide the water purification process into four stages: pretreatment (primary purification, including filtration, adsorption, softening and other processes), reverse osmosis device (pre-desalination), EDI electric desalting (deep desalination), post-treatment (including polishing resin purification and other processes), and necessary auxiliary processes (such as degassing membrane, chemical dosing and other processes), Finally, ultra-pure water that meets the industrial standards or special process requirements for product production is produced.

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