Title:
WATER TREATMENT SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/202776
Kind Code:
A1
Abstract:
A water treatment system (1) comprises a first membrane treatment (D1) and a second membrane treatment device (D2), and performs, in order: a first step for actuating, when starting the second membrane treatment device (D2), a first pressure pump (5) through constant flow feedback control with a first three-way-valve (10) open toward a blow side; a second step for switching the first three-way-valve (10) to the second membrane treatment device (D2) side and actuating the first pressure pump (5) as a fixed actuation frequency; and a third step for actuating the first pressure pump via constant pressure feedback control, and actuating a second pressure pump (11) via constant flow feedback control.
Inventors:
OKA RIICHIRO (JP)
WATANABE HAYATO (JP)
HIRAO MASAAKI (JP)
WATANABE HAYATO (JP)
HIRAO MASAAKI (JP)
Application Number:
PCT/JP2020/004253
Publication Date:
October 08, 2020
Filing Date:
February 05, 2020
Export Citation:
Assignee:
MIURA KOGYO KK (JP)
International Classes:
B01D61/58; C02F1/44
Domestic Patent References:
| WO2011070894A1 | 2011-06-16 | |||
| WO2010061666A1 | 2010-06-03 |
Foreign References:
| JP2014083480A | 2014-05-12 | |||
| JP2015160156A | 2015-09-07 | |||
| CN208003770U | 2018-10-26 |
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