Title:
DEOXIDATION TREATMENT METHOD AND DEOXIDATION TREATMENT SYSTEM OF WATER TO BE TREATED AND PRODUCTION METHOD OF DEOXIDIZED CARBONATED WATER CONTAINING HARDNESS COMPONENT
Document Type and Number:
Japanese Patent JP2018047426
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a deoxidation treatment method of an aqueous liquid containing a hardness component where carbon dioxide gas is dissolved in the aqueous liquid containing the hardness component and carbonated water is obtained, the deposition of a carbonate on the surface of a gas permeation membrane can be effectively prevented when the deoxidation treatment of the carbonated water is performed by gas-liquid gas exchanging using the gas permeation membrane.SOLUTION: Water BT to be treated is converted to carbonated water having a Langelier index of -1.0 or less by dissolving carbon dioxide gas in the water BT to be treated containing dissolved oxygen and a hardness component. A deoxidation treatment method of the water BT to be treated includes that the carbonated water is deoxidized by gas-liquid gas exchanging via a gas permeation membrane 2.SELECTED DRAWING: Figure 4
Inventors:
KENMOCHI CHIKA
IRIYAMA KOTA
IRIYAMA KOTA
Application Number:
JP2016184715A
Publication Date:
March 29, 2018
Filing Date:
September 21, 2016
Export Citation:
Assignee:
ORGANO KK
International Classes:
B01D61/00; A23L2/00; B01D19/00; B01F1/00; B01F3/04; C02F5/00
Domestic Patent References:
| JPH0760005A | 1995-03-07 | |||
| JPH08318138A | 1996-12-03 | |||
| JPH0780205A | 1995-03-28 |
Attorney, Agent or Firm:
Toshizo Iida
Shuichi Akabane
Shuichi Akabane