Title:
OPERATING METHOD FOR REGENERATION TYPE ION EXCHANGE DEVICE
Document Type and Number:
WIPO Patent Application WO/2015/189908
Kind Code:
A1
Abstract:
Provided is a simple and economical operating method for a regeneration type ion exchange device that carries out an operating scheme of interrupting operation of ascending circulation of raw water and thereafter restarting the operation, said operating method not requiring the installation of a special means in the regeneration type ion exchange device, being simple to operate, and not taking time. The operating method for a regeneration type ion exchange device, which accommodates an ion exchange resin (4) within a container (1), has a raw water flow step for making raw water flow in an ascending current in the regeneration type ion exchange device and water flow stopping step for stopping the raw water flow in the regeneration type ion exchange device. The method comprises a force applying water flow step that makes a descending water flow for pressing the ion exchange resin (4) downward in the container after the raw water flow step is completed and before the water flow stopping step.
Inventors:
MIYAZAKI YOICHI (JP)
FUKUI TAKEO (JP)
FUKUI TAKEO (JP)
Application Number:
PCT/JP2014/065309
Publication Date:
December 17, 2015
Filing Date:
June 10, 2014
Export Citation:
Assignee:
KURITA WATER IND LTD (JP)
International Classes:
C02F1/42; B01J49/00
Domestic Patent References:
| WO2005102993A1 | 2005-11-03 |
Foreign References:
| JPS6034744A | 1985-02-22 | |||
| US20110147315A1 | 2011-06-23 | |||
| JP2011072927A | 2011-04-14 |
Attorney, Agent or Firm:
SHIGENO, Tsuyoshi (JP)
Takeshi Shigeno (JP)
Takeshi Shigeno (JP)
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