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Patent Searching and Data


Title:
CONTROL METHOD FOR RO SYSTEM, AND CONTROL PROGRAM FOR WATER TREATMENT SYSTEM
Document Type and Number:
WIPO Patent Application WO/2024/014289
Kind Code:
A1
Abstract:
Provided is a control method for an RO system that, by reducing the usage amount of chemicals and the frequency of membrane replacement, is capable of reducing power consumption (that is, CO2) and the amount of waste and achieving stable operation, thereby contributing to energy saving and labor saving due to reduced maintenance. This control method for an RO system is a method for controlling an RO system having a plurality of RO devices 41-44 arranged in parallel, a control unit that controls start/stop processes including an operation process and a stop process of the RO devices 41-44, and a chemical injection unit that injects chemicals to alleviate fouling during the stop process. The control method performs control such that the start/stop frequency becomes higher for RO devices having a processing capability easily recovered by starting/stopping, and controls the stop time depending on the degree of recovery.

Inventors:
KOMORI HIDEYUKI (SG)
HATORI SHUUHEI (JP)
Application Number:
PCT/JP2023/023919
Publication Date:
January 18, 2024
Filing Date:
June 28, 2023
Export Citation:
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Assignee:
KURITA WATER IND LTD (JP)
FRACTA LEAP K K (JP)
International Classes:
B01D61/12; C02F1/44
Foreign References:
JP2004130211A2004-04-30
JPH08155273A1996-06-18
JPH06106167A1994-04-19
JP2006247498A2006-09-21
Attorney, Agent or Firm:
SHIGENO, Tsuyoshi et al. (JP)
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