Title:
METHOD FOR REGENERATING ION EXCHANGE DEVICE
Document Type and Number:
Japanese Patent JP2019141804
Kind Code:
A
Abstract:
To provide a method for regenerating an ion exchange device capable of sufficiently regenerating an ion exchange resin that adsorbs an organic matter.SOLUTION: A method for regenerating an ion exchange device including a step of passing a regeneration chemical liquid to an ion exchange device having an ion exchange resin layer, which further includes an immersion step of stopping passing of a regeneration chemical liquid to the ion exchange resin and makes the ion exchange resin layer immersed in the regeneration chemical liquid. The ion exchange resin is preferably an anion exchange resin, particularly preferably, a weak basic anion exchange resin, and the regeneration chemical liquid is preferably an alkali aqueous solution.SELECTED DRAWING: Figure 1
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Inventors:
NAKATA KOJI
Application Number:
JP2018029853A
Publication Date:
August 29, 2019
Filing Date:
February 22, 2018
Export Citation:
Assignee:
KURITA WATER IND LTD
International Classes:
B01J49/07; B01J41/07; B01J49/57; B01J49/60
Attorney, Agent or Firm:
Tsuyoshi Shigeno
Takayuki Shigeno
Takayuki Shigeno