Title: Pure water production system
Application Number: 200480022130 Application Date: 2004.06.02
Publication Number: 1829665 Publication Date: 2006.09.06
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C02F1/469,C02F1/42,C02F1/44,C02F9/00,B01D61/02,B01D61/44,B01D61/58
Applicant(s) Name: Kurita Water Ind Ltd. Address:
Inventor(s) Name: Osawa Masanobu
Attorney & Agent: zhang tianan
Abstract:
     A pure water production system capable of producing treated water having a low boron concentration efficiently. Water to be treated is passed, at first, to an RO equipment (1), permeated water is passed to a boron adsorber (2), water passed through the boron adsorber (2) and having boron removed therefrom by adsorption is passed to an electric deionizer (3) and electrically deionized water is taken out therefrom as treated water. Condensate from the electric deionizer (3) may be discarded or returned to the upstream side of the RO equipment (1) through return piping (4) and added to the water to be treated. An adsorbent for adsorbing boron selectively is suitably contained in the boron adsorber (2).
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