Title:
A refining water manufacture device for medicine manufactures, and a method
Document Type and Number:
Japanese Patent JP6036265
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a system for preparing purified water to be used for drug production, in which when raw water is irradiated with ultraviolet light to remove the residual chlorine therein, the residual chlorine-removed water is treated by using a reverse osmosis membrane, and the membrane-treated water is subjected to electric deionization treatment or ion exchange treatment, the service life of an ultraviolet lamp can be prevented from being shortened by turning off the ultraviolet lamp and the thermal energy to be generated when the ultraviolet lamp is turned on can be used effectively.SOLUTION: When residual chlorine-containing raw water is treated to prepare the purified water to be used for drug production, the raw water is irradiated with ultraviolet light in a raw water tank where the ultraviolet lamp is disposed, the water irradiated thus is treated by using the reverse osmosis membrane, and the membrane-treated water is subjected to electric deionization treatment or ion exchange treatment. In such a period that preparation of the purified water is stopped, supply of the raw water is stopped while continuing to turn on the ultraviolet lamp so that the raw water in the raw water tank is heated to 50-90°C by the heat of the ultraviolet lamp. When preparation of the purified water is restarted, the inside of an apparatus for preparing the purified water is sterilized by using the heated raw water.
Inventors:
Hiroyuki Ikeda
Kiminobu Osawa
Kiminobu Osawa
Application Number:
JP2012278444A
Publication Date:
November 30, 2016
Filing Date:
December 20, 2012
Export Citation:
Assignee:
Kurita Water Industries Ltd.
International Classes:
C02F1/44; A61L2/04; A61L2/08; B01D61/04; B01D61/08; B01D61/44; B01D61/58; C02F1/32; C02F1/42; C02F1/469; C02F9/02; C02F9/06; C02F9/10; C02F9/12
Domestic Patent References:
| JP2002512883A | ||||
| JP50080653A | ||||
| JP2010150790A | ||||
| JP2010012429A | ||||
| JP2009262122A | ||||
| JP2004074109A | ||||
| JP2007237062A | ||||
| JP6071256A |
Foreign References:
| US20030127381 |
Attorney, Agent or Firm:
Tsuyoshi Shigeno